./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i --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_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/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_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/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_ab85f12b-171d-4330-9f09-031d0ef1a27e/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 b28ed2134b8a500a12d5d4bc892752e1e825197b4bf6ff6b142642da12ed1a0e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:31:06,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:31:06,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:31:06,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:31:06,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:31:06,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:31:06,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:31:06,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:31:06,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:31:06,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:31:06,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:31:06,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:31:06,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:31:06,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:31:06,548 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:31:06,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:31:06,549 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:31:06,550 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:31:06,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:31:06,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:31:06,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:31:06,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:31:06,552 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_ab85f12b-171d-4330-9f09-031d0ef1a27e/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 -> b28ed2134b8a500a12d5d4bc892752e1e825197b4bf6ff6b142642da12ed1a0e [2024-12-02 07:31:06,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:31:06,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:31:06,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:31:06,807 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:31:06,808 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:31:06,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i [2024-12-02 07:31:09,500 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/data/db14535bf/eff67a5e3a5644c69dae1a9bd4d95a19/FLAG09aeaef70 [2024-12-02 07:31:09,774 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:31:09,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i [2024-12-02 07:31:09,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/data/db14535bf/eff67a5e3a5644c69dae1a9bd4d95a19/FLAG09aeaef70 [2024-12-02 07:31:10,076 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/data/db14535bf/eff67a5e3a5644c69dae1a9bd4d95a19 [2024-12-02 07:31:10,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:31:10,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:31:10,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:31:10,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:31:10,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:31:10,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aebc6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10, skipping insertion in model container [2024-12-02 07:31:10,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:31:10,215 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_ab85f12b-171d-4330-9f09-031d0ef1a27e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i[919,932] [2024-12-02 07:31:10,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:31:10,295 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:31:10,304 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_ab85f12b-171d-4330-9f09-031d0ef1a27e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i[919,932] [2024-12-02 07:31:10,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:31:10,354 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:31:10,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10 WrapperNode [2024-12-02 07:31:10,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:31:10,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:31:10,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:31:10,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:31:10,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,397 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249 [2024-12-02 07:31:10,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:31:10,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:31:10,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:31:10,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:31:10,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,428 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 07:31:10,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,439 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:31:10,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:31:10,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:31:10,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:31:10,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (1/1) ... [2024-12-02 07:31:10,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:31:10,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:31:10,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:31:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:31:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:31:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:31:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:31:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:31:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:31:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:31:10,587 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:31:10,589 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:31:11,014 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 07:31:11,015 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:31:11,025 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:31:11,025 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:31:11,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:31:11 BoogieIcfgContainer [2024-12-02 07:31:11,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:31:11,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:31:11,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:31:11,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:31:11,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:31:10" (1/3) ... [2024-12-02 07:31:11,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210c7c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:31:11, skipping insertion in model container [2024-12-02 07:31:11,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:10" (2/3) ... [2024-12-02 07:31:11,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210c7c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:31:11, skipping insertion in model container [2024-12-02 07:31:11,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:31:11" (3/3) ... [2024-12-02 07:31:11,035 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i [2024-12-02 07:31:11,051 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:31:11,053 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-81.i that has 2 procedures, 106 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:31:11,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:31:11,122 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;@74045f57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:31:11,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:31:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 73 states have internal predecessors, (106), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:31:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:31:11,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:11,141 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:11,141 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:11,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:11,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1706633354, now seen corresponding path program 1 times [2024-12-02 07:31:11,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:11,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962770007] [2024-12-02 07:31:11,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-12-02 07:31:11,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962770007] [2024-12-02 07:31:11,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962770007] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:31:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576631118] [2024-12-02 07:31:11,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:11,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:31:11,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:31:11,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:31:11,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:31:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:11,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:31:11,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:31:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-12-02 07:31:11,683 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:31:11,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576631118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:11,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:31:11,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:31:11,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948797187] [2024-12-02 07:31:11,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:11,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:31:11,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:11,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:31:11,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:31:11,707 INFO L87 Difference]: Start difference. First operand has 106 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 73 states have internal predecessors, (106), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:31:11,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:11,733 INFO L93 Difference]: Finished difference Result 204 states and 359 transitions. [2024-12-02 07:31:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:31:11,735 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 202 [2024-12-02 07:31:11,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:11,741 INFO L225 Difference]: With dead ends: 204 [2024-12-02 07:31:11,741 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 07:31:11,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:31:11,746 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:11,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:31:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 07:31:11,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-12-02 07:31:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:31:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-12-02 07:31:11,780 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 202 [2024-12-02 07:31:11,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:11,780 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-12-02 07:31:11,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:31:11,780 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-12-02 07:31:11,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:31:11,783 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:11,783 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:11,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:31:11,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:31:11,984 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:11,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:11,984 INFO L85 PathProgramCache]: Analyzing trace with hash 4618240, now seen corresponding path program 1 times [2024-12-02 07:31:11,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:11,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819265768] [2024-12-02 07:31:11,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:11,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:31:12,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:12,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819265768] [2024-12-02 07:31:12,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819265768] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:12,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:12,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:31:12,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616133264] [2024-12-02 07:31:12,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:12,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:31:12,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:12,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:31:12,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:31:12,922 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:31:13,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:13,262 INFO L93 Difference]: Finished difference Result 269 states and 421 transitions. [2024-12-02 07:31:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:31:13,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-12-02 07:31:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:13,266 INFO L225 Difference]: With dead ends: 269 [2024-12-02 07:31:13,266 INFO L226 Difference]: Without dead ends: 171 [2024-12-02 07:31:13,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:31:13,268 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 125 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:13,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 448 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:31:13,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-12-02 07:31:13,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 119. [2024-12-02 07:31:13,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 86 states have internal predecessors, (127), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:31:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 189 transitions. [2024-12-02 07:31:13,285 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 189 transitions. Word has length 202 [2024-12-02 07:31:13,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:13,287 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 189 transitions. [2024-12-02 07:31:13,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:31:13,287 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 189 transitions. [2024-12-02 07:31:13,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:31:13,291 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:13,291 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:13,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:31:13,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:13,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 684676610, now seen corresponding path program 1 times [2024-12-02 07:31:13,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:13,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654225966] [2024-12-02 07:31:13,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:13,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:29,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:31:29,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:29,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654225966] [2024-12-02 07:31:29,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654225966] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:29,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:29,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:31:29,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654706040] [2024-12-02 07:31:29,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:29,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:31:29,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:29,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:31:29,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:31:29,603 INFO L87 Difference]: Start difference. First operand 119 states and 189 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:31:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:37,855 INFO L93 Difference]: Finished difference Result 531 states and 808 transitions. [2024-12-02 07:31:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 07:31:37,856 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 202 [2024-12-02 07:31:37,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:37,859 INFO L225 Difference]: With dead ends: 531 [2024-12-02 07:31:37,859 INFO L226 Difference]: Without dead ends: 415 [2024-12-02 07:31:37,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=353, Invalid=769, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 07:31:37,860 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 2308 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:37,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 546 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 07:31:37,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-12-02 07:31:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 167. [2024-12-02 07:31:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 133 states have (on average 1.5263157894736843) internal successors, (203), 133 states have internal predecessors, (203), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:31:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 265 transitions. [2024-12-02 07:31:37,883 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 265 transitions. Word has length 202 [2024-12-02 07:31:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:37,883 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 265 transitions. [2024-12-02 07:31:37,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:31:37,884 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 265 transitions. [2024-12-02 07:31:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:31:37,886 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:37,886 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:37,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:31:37,886 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:37,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash -326440640, now seen corresponding path program 1 times [2024-12-02 07:31:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:37,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137561192] [2024-12-02 07:31:37,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:37,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:31:38,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:38,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137561192] [2024-12-02 07:31:38,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137561192] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:38,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:38,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:31:38,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143662023] [2024-12-02 07:31:38,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:38,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:31:38,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:38,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:31:38,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:31:38,172 INFO L87 Difference]: Start difference. First operand 167 states and 265 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:31:38,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:38,271 INFO L93 Difference]: Finished difference Result 392 states and 621 transitions. [2024-12-02 07:31:38,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:31:38,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-12-02 07:31:38,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:38,274 INFO L225 Difference]: With dead ends: 392 [2024-12-02 07:31:38,274 INFO L226 Difference]: Without dead ends: 228 [2024-12-02 07:31:38,275 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 07:31:38,276 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 67 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:38,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 455 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:31:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-12-02 07:31:38,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 210. [2024-12-02 07:31:38,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.4853801169590644) internal successors, (254), 172 states have internal predecessors, (254), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 07:31:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 324 transitions. [2024-12-02 07:31:38,301 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 324 transitions. Word has length 202 [2024-12-02 07:31:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:38,302 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 324 transitions. [2024-12-02 07:31:38,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:31:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 324 transitions. [2024-12-02 07:31:38,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:31:38,305 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:38,305 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:38,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:31:38,305 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:38,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:38,306 INFO L85 PathProgramCache]: Analyzing trace with hash -903671292, now seen corresponding path program 1 times [2024-12-02 07:31:38,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:38,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037782297] [2024-12-02 07:31:38,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:38,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:50,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:31:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:50,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037782297] [2024-12-02 07:31:50,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037782297] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:50,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:50,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:31:50,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295357424] [2024-12-02 07:31:50,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:50,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:31:50,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:50,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:31:50,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:31:50,180 INFO L87 Difference]: Start difference. First operand 210 states and 324 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:31:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:54,640 INFO L93 Difference]: Finished difference Result 601 states and 909 transitions. [2024-12-02 07:31:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:31:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 202 [2024-12-02 07:31:54,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:54,645 INFO L225 Difference]: With dead ends: 601 [2024-12-02 07:31:54,645 INFO L226 Difference]: Without dead ends: 394 [2024-12-02 07:31:54,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=214, Invalid=436, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:31:54,646 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 1505 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:54,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 480 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 07:31:54,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-12-02 07:31:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 210. [2024-12-02 07:31:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.4853801169590644) internal successors, (254), 172 states have internal predecessors, (254), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 07:31:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 324 transitions. [2024-12-02 07:31:54,668 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 324 transitions. Word has length 202 [2024-12-02 07:31:54,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:54,669 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 324 transitions. [2024-12-02 07:31:54,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:31:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 324 transitions. [2024-12-02 07:31:54,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:31:54,671 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:54,671 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:54,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:31:54,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:54,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:54,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1309468096, now seen corresponding path program 1 times [2024-12-02 07:31:54,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:54,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12566097] [2024-12-02 07:31:54,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:54,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:31:55,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:55,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12566097] [2024-12-02 07:31:55,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12566097] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:55,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:55,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:31:55,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185641670] [2024-12-02 07:31:55,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:55,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:31:55,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:55,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:31:55,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:31:55,586 INFO L87 Difference]: Start difference. First operand 210 states and 324 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:31:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:56,256 INFO L93 Difference]: Finished difference Result 787 states and 1210 transitions. [2024-12-02 07:31:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:31:56,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-12-02 07:31:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:56,260 INFO L225 Difference]: With dead ends: 787 [2024-12-02 07:31:56,260 INFO L226 Difference]: Without dead ends: 580 [2024-12-02 07:31:56,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:31:56,261 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 360 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:56,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1215 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:31:56,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-12-02 07:31:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 318. [2024-12-02 07:31:56,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 246 states have (on average 1.475609756097561) internal successors, (363), 247 states have internal predecessors, (363), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:31:56,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 495 transitions. [2024-12-02 07:31:56,312 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 495 transitions. Word has length 202 [2024-12-02 07:31:56,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:56,313 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 495 transitions. [2024-12-02 07:31:56,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:31:56,313 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 495 transitions. [2024-12-02 07:31:56,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:31:56,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:56,315 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:56,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:31:56,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:56,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:56,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1502325060, now seen corresponding path program 1 times [2024-12-02 07:31:56,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:56,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085950442] [2024-12-02 07:31:56,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:56,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:32:08,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:08,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085950442] [2024-12-02 07:32:08,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085950442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:08,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:08,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:32:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411550594] [2024-12-02 07:32:08,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:08,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:32:08,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:08,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:32:08,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:32:08,031 INFO L87 Difference]: Start difference. First operand 318 states and 495 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:11,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:11,988 INFO L93 Difference]: Finished difference Result 823 states and 1256 transitions. [2024-12-02 07:32:11,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:32:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-12-02 07:32:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:11,992 INFO L225 Difference]: With dead ends: 823 [2024-12-02 07:32:11,992 INFO L226 Difference]: Without dead ends: 616 [2024-12-02 07:32:11,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:32:11,994 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 939 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:11,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 782 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:32:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-12-02 07:32:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 321. [2024-12-02 07:32:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 249 states have (on average 1.4779116465863453) internal successors, (368), 250 states have internal predecessors, (368), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:32:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 500 transitions. [2024-12-02 07:32:12,043 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 500 transitions. Word has length 202 [2024-12-02 07:32:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:12,044 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 500 transitions. [2024-12-02 07:32:12,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 500 transitions. [2024-12-02 07:32:12,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:32:12,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:12,045 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:12,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:32:12,045 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:12,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:12,046 INFO L85 PathProgramCache]: Analyzing trace with hash -86022842, now seen corresponding path program 1 times [2024-12-02 07:32:12,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:12,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189893580] [2024-12-02 07:32:12,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:12,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:19,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:32:19,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:19,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189893580] [2024-12-02 07:32:19,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189893580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:19,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:19,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:32:19,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247725691] [2024-12-02 07:32:19,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:19,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:32:19,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:19,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:32:19,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:32:19,570 INFO L87 Difference]: Start difference. First operand 321 states and 500 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:23,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:23,523 INFO L93 Difference]: Finished difference Result 839 states and 1261 transitions. [2024-12-02 07:32:23,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 07:32:23,524 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-12-02 07:32:23,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:23,526 INFO L225 Difference]: With dead ends: 839 [2024-12-02 07:32:23,526 INFO L226 Difference]: Without dead ends: 632 [2024-12-02 07:32:23,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2024-12-02 07:32:23,528 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 797 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:23,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 843 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 07:32:23,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-12-02 07:32:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 356. [2024-12-02 07:32:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 284 states have (on average 1.4753521126760563) internal successors, (419), 285 states have internal predecessors, (419), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:32:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 551 transitions. [2024-12-02 07:32:23,570 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 551 transitions. Word has length 202 [2024-12-02 07:32:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:23,576 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 551 transitions. [2024-12-02 07:32:23,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:23,576 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 551 transitions. [2024-12-02 07:32:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:32:23,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:23,578 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:23,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:32:23,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:23,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1107378436, now seen corresponding path program 1 times [2024-12-02 07:32:23,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:23,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672454185] [2024-12-02 07:32:23,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:23,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:32:24,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672454185] [2024-12-02 07:32:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672454185] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:24,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:24,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:32:24,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231535041] [2024-12-02 07:32:24,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:24,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:32:24,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:24,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:32:24,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:32:24,139 INFO L87 Difference]: Start difference. First operand 356 states and 551 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:24,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:24,751 INFO L93 Difference]: Finished difference Result 787 states and 1216 transitions. [2024-12-02 07:32:24,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:32:24,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-12-02 07:32:24,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:24,755 INFO L225 Difference]: With dead ends: 787 [2024-12-02 07:32:24,755 INFO L226 Difference]: Without dead ends: 580 [2024-12-02 07:32:24,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:32:24,756 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 433 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:24,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 770 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:32:24,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-12-02 07:32:24,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 362. [2024-12-02 07:32:24,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 290 states have (on average 1.4793103448275862) internal successors, (429), 291 states have internal predecessors, (429), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:32:24,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 561 transitions. [2024-12-02 07:32:24,795 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 561 transitions. Word has length 202 [2024-12-02 07:32:24,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:24,795 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 561 transitions. [2024-12-02 07:32:24,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 561 transitions. [2024-12-02 07:32:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:32:24,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:24,797 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:24,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:32:24,797 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:24,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:24,798 INFO L85 PathProgramCache]: Analyzing trace with hash 334564308, now seen corresponding path program 1 times [2024-12-02 07:32:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:24,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013586829] [2024-12-02 07:32:24,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:32:38,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:38,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013586829] [2024-12-02 07:32:38,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013586829] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:38,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:38,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:32:38,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461391008] [2024-12-02 07:32:38,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:38,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:32:38,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:38,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:32:38,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:32:38,902 INFO L87 Difference]: Start difference. First operand 362 states and 561 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:43,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:43,000 INFO L93 Difference]: Finished difference Result 796 states and 1218 transitions. [2024-12-02 07:32:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:32:43,001 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:32:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:43,003 INFO L225 Difference]: With dead ends: 796 [2024-12-02 07:32:43,003 INFO L226 Difference]: Without dead ends: 589 [2024-12-02 07:32:43,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:32:43,004 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 916 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:43,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 810 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:32:43,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-12-02 07:32:43,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 373. [2024-12-02 07:32:43,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 301 states have (on average 1.4817275747508305) internal successors, (446), 302 states have internal predecessors, (446), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:32:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 578 transitions. [2024-12-02 07:32:43,055 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 578 transitions. Word has length 203 [2024-12-02 07:32:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:43,056 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 578 transitions. [2024-12-02 07:32:43,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:32:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 578 transitions. [2024-12-02 07:32:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:32:43,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:43,058 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:43,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:32:43,058 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:43,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:43,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1659580398, now seen corresponding path program 1 times [2024-12-02 07:32:43,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:43,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089480136] [2024-12-02 07:32:43,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:43,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:32:56,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:56,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089480136] [2024-12-02 07:32:56,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089480136] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:56,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:56,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:32:56,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380209414] [2024-12-02 07:32:56,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:56,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:32:56,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:56,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:32:56,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:32:56,916 INFO L87 Difference]: Start difference. First operand 373 states and 578 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:00,959 INFO L93 Difference]: Finished difference Result 772 states and 1186 transitions. [2024-12-02 07:33:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:33:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:33:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:00,963 INFO L225 Difference]: With dead ends: 772 [2024-12-02 07:33:00,963 INFO L226 Difference]: Without dead ends: 565 [2024-12-02 07:33:00,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:33:00,964 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 752 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:00,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 755 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:33:00,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-12-02 07:33:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 349. [2024-12-02 07:33:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.48014440433213) internal successors, (410), 278 states have internal predecessors, (410), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:33:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 542 transitions. [2024-12-02 07:33:01,016 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 542 transitions. Word has length 203 [2024-12-02 07:33:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:01,017 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 542 transitions. [2024-12-02 07:33:01,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 542 transitions. [2024-12-02 07:33:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:33:01,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:01,019 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:01,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:33:01,019 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:01,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1354379434, now seen corresponding path program 1 times [2024-12-02 07:33:01,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:33:01,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460682157] [2024-12-02 07:33:01,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:33:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:33:02,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:33:02,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460682157] [2024-12-02 07:33:02,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460682157] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:33:02,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:33:02,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:33:02,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051124516] [2024-12-02 07:33:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:02,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:33:02,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:33:02,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:33:02,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:33:02,526 INFO L87 Difference]: Start difference. First operand 349 states and 542 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:03,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:03,809 INFO L93 Difference]: Finished difference Result 727 states and 1124 transitions. [2024-12-02 07:33:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:33:03,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:33:03,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:03,812 INFO L225 Difference]: With dead ends: 727 [2024-12-02 07:33:03,812 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 07:33:03,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:33:03,814 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 311 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:03,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 666 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:33:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 07:33:03,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 349. [2024-12-02 07:33:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.4620938628158844) internal successors, (405), 278 states have internal predecessors, (405), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:33:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 537 transitions. [2024-12-02 07:33:03,859 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 537 transitions. Word has length 203 [2024-12-02 07:33:03,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:03,859 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 537 transitions. [2024-12-02 07:33:03,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 537 transitions. [2024-12-02 07:33:03,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:33:03,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:03,860 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:03,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:33:03,860 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:03,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:03,860 INFO L85 PathProgramCache]: Analyzing trace with hash 553419026, now seen corresponding path program 1 times [2024-12-02 07:33:03,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:33:03,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252481314] [2024-12-02 07:33:03,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:03,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:33:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:33:12,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:33:12,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252481314] [2024-12-02 07:33:12,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252481314] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:33:12,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:33:12,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:33:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103365447] [2024-12-02 07:33:12,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:12,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:33:12,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:33:12,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:33:12,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:33:12,616 INFO L87 Difference]: Start difference. First operand 349 states and 537 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:15,652 INFO L93 Difference]: Finished difference Result 726 states and 1104 transitions. [2024-12-02 07:33:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:33:15,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:33:15,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:15,654 INFO L225 Difference]: With dead ends: 726 [2024-12-02 07:33:15,654 INFO L226 Difference]: Without dead ends: 519 [2024-12-02 07:33:15,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:33:15,655 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 394 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:15,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 549 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 07:33:15,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-12-02 07:33:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 367. [2024-12-02 07:33:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 295 states have (on average 1.4610169491525424) internal successors, (431), 296 states have internal predecessors, (431), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:33:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 563 transitions. [2024-12-02 07:33:15,698 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 563 transitions. Word has length 203 [2024-12-02 07:33:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:15,699 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 563 transitions. [2024-12-02 07:33:15,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 563 transitions. [2024-12-02 07:33:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:33:15,700 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:15,700 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:15,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:33:15,701 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:15,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1440725680, now seen corresponding path program 1 times [2024-12-02 07:33:15,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:33:15,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175343868] [2024-12-02 07:33:15,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:15,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:33:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:33:29,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:33:29,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175343868] [2024-12-02 07:33:29,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175343868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:33:29,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:33:29,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:33:29,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981533162] [2024-12-02 07:33:29,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:29,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:33:29,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:33:29,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:33:29,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:33:29,754 INFO L87 Difference]: Start difference. First operand 367 states and 563 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:34,825 INFO L93 Difference]: Finished difference Result 841 states and 1273 transitions. [2024-12-02 07:33:34,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:33:34,826 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:33:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:34,828 INFO L225 Difference]: With dead ends: 841 [2024-12-02 07:33:34,828 INFO L226 Difference]: Without dead ends: 619 [2024-12-02 07:33:34,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:33:34,829 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 601 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:34,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 855 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 07:33:34,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-12-02 07:33:34,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 382. [2024-12-02 07:33:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 309 states have (on average 1.4563106796116505) internal successors, (450), 310 states have internal predecessors, (450), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:33:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 582 transitions. [2024-12-02 07:33:34,861 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 582 transitions. Word has length 203 [2024-12-02 07:33:34,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:34,861 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 582 transitions. [2024-12-02 07:33:34,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:34,862 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 582 transitions. [2024-12-02 07:33:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:33:34,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:34,863 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:34,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:33:34,863 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:34,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:34,863 INFO L85 PathProgramCache]: Analyzing trace with hash -96606133, now seen corresponding path program 1 times [2024-12-02 07:33:34,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:33:34,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179663589] [2024-12-02 07:33:34,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:34,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:33:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:33:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:33:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179663589] [2024-12-02 07:33:43,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179663589] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:33:43,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:33:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:33:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880800927] [2024-12-02 07:33:43,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:43,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:33:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:33:43,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:33:43,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:33:43,638 INFO L87 Difference]: Start difference. First operand 382 states and 582 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:46,688 INFO L93 Difference]: Finished difference Result 961 states and 1450 transitions. [2024-12-02 07:33:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:33:46,688 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:33:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:46,691 INFO L225 Difference]: With dead ends: 961 [2024-12-02 07:33:46,691 INFO L226 Difference]: Without dead ends: 739 [2024-12-02 07:33:46,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:33:46,692 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 742 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:46,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 724 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:33:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-12-02 07:33:46,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 394. [2024-12-02 07:33:46,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 321 states have (on average 1.4610591900311527) internal successors, (469), 322 states have internal predecessors, (469), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:33:46,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 601 transitions. [2024-12-02 07:33:46,773 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 601 transitions. Word has length 203 [2024-12-02 07:33:46,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:46,774 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 601 transitions. [2024-12-02 07:33:46,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:33:46,775 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 601 transitions. [2024-12-02 07:33:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:33:46,776 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:46,777 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:46,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:33:46,777 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:46,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:46,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1107723383, now seen corresponding path program 1 times [2024-12-02 07:33:46,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:33:46,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221856202] [2024-12-02 07:33:46,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:46,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:33:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:33:55,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:33:55,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221856202] [2024-12-02 07:33:55,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221856202] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:33:55,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:33:55,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:33:55,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775406410] [2024-12-02 07:33:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:55,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:33:55,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:33:55,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:33:55,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:33:55,552 INFO L87 Difference]: Start difference. First operand 394 states and 601 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:33:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:59,717 INFO L93 Difference]: Finished difference Result 1100 states and 1671 transitions. [2024-12-02 07:33:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:33:59,718 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 203 [2024-12-02 07:33:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:59,720 INFO L225 Difference]: With dead ends: 1100 [2024-12-02 07:33:59,720 INFO L226 Difference]: Without dead ends: 866 [2024-12-02 07:33:59,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2024-12-02 07:33:59,721 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1570 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:59,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 730 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 07:33:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-12-02 07:33:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 430. [2024-12-02 07:33:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 357 states have (on average 1.4677871148459383) internal successors, (524), 358 states have internal predecessors, (524), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:33:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 656 transitions. [2024-12-02 07:33:59,755 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 656 transitions. Word has length 203 [2024-12-02 07:33:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:59,755 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 656 transitions. [2024-12-02 07:33:59,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:33:59,755 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 656 transitions. [2024-12-02 07:33:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:33:59,756 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:59,756 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:59,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:33:59,756 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:59,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1684954035, now seen corresponding path program 1 times [2024-12-02 07:33:59,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:33:59,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320063564] [2024-12-02 07:33:59,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:59,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:33:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:34:08,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:34:08,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320063564] [2024-12-02 07:34:08,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320063564] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:08,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:08,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:34:08,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625262017] [2024-12-02 07:34:08,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:08,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:34:08,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:34:08,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:34:08,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:34:08,334 INFO L87 Difference]: Start difference. First operand 430 states and 656 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:12,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:12,835 INFO L93 Difference]: Finished difference Result 1117 states and 1683 transitions. [2024-12-02 07:34:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 07:34:12,836 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:34:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:12,838 INFO L225 Difference]: With dead ends: 1117 [2024-12-02 07:34:12,838 INFO L226 Difference]: Without dead ends: 849 [2024-12-02 07:34:12,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=277, Invalid=779, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 07:34:12,839 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1059 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:12,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 958 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 07:34:12,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-12-02 07:34:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 433. [2024-12-02 07:34:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 360 states have (on average 1.4722222222222223) internal successors, (530), 361 states have internal predecessors, (530), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:34:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 662 transitions. [2024-12-02 07:34:12,874 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 662 transitions. Word has length 203 [2024-12-02 07:34:12,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:12,874 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 662 transitions. [2024-12-02 07:34:12,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 662 transitions. [2024-12-02 07:34:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:34:12,875 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:12,875 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:12,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:34:12,875 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:12,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:12,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1598896011, now seen corresponding path program 1 times [2024-12-02 07:34:12,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:34:12,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185654184] [2024-12-02 07:34:12,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:12,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:34:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:20,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:34:20,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:34:20,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185654184] [2024-12-02 07:34:20,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185654184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:20,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:20,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:34:20,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238738440] [2024-12-02 07:34:20,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:20,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:34:20,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:34:20,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:34:20,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:34:20,965 INFO L87 Difference]: Start difference. First operand 433 states and 662 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:34:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:24,684 INFO L93 Difference]: Finished difference Result 1164 states and 1774 transitions. [2024-12-02 07:34:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:34:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 203 [2024-12-02 07:34:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:24,687 INFO L225 Difference]: With dead ends: 1164 [2024-12-02 07:34:24,688 INFO L226 Difference]: Without dead ends: 894 [2024-12-02 07:34:24,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:34:24,688 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1208 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:24,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 698 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:34:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-12-02 07:34:24,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 469. [2024-12-02 07:34:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 396 states have (on average 1.4848484848484849) internal successors, (588), 397 states have internal predecessors, (588), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:34:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 720 transitions. [2024-12-02 07:34:24,722 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 720 transitions. Word has length 203 [2024-12-02 07:34:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:24,723 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 720 transitions. [2024-12-02 07:34:24,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:34:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 720 transitions. [2024-12-02 07:34:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:34:24,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:24,724 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:24,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:34:24,724 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:24,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:24,724 INFO L85 PathProgramCache]: Analyzing trace with hash -290074933, now seen corresponding path program 1 times [2024-12-02 07:34:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:34:24,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711437062] [2024-12-02 07:34:24,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:24,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:34:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:34:35,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:34:35,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711437062] [2024-12-02 07:34:35,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711437062] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:35,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:35,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:34:35,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082006021] [2024-12-02 07:34:35,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:35,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:34:35,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:34:35,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:34:35,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:34:35,794 INFO L87 Difference]: Start difference. First operand 469 states and 720 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:39,935 INFO L93 Difference]: Finished difference Result 1157 states and 1776 transitions. [2024-12-02 07:34:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:34:39,936 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:34:39,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:39,938 INFO L225 Difference]: With dead ends: 1157 [2024-12-02 07:34:39,938 INFO L226 Difference]: Without dead ends: 854 [2024-12-02 07:34:39,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:34:39,939 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 573 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:39,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 944 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:34:39,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-12-02 07:34:39,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 484. [2024-12-02 07:34:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 411 states have (on average 1.489051094890511) internal successors, (612), 412 states have internal predecessors, (612), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:34:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 744 transitions. [2024-12-02 07:34:39,973 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 744 transitions. Word has length 203 [2024-12-02 07:34:39,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:39,974 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 744 transitions. [2024-12-02 07:34:39,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:39,974 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 744 transitions. [2024-12-02 07:34:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:34:39,974 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:39,975 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:39,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:34:39,975 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:39,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1878422835, now seen corresponding path program 1 times [2024-12-02 07:34:39,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:34:39,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091893113] [2024-12-02 07:34:39,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:39,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:34:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:34:45,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:34:45,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091893113] [2024-12-02 07:34:45,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091893113] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:45,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:45,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:34:45,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497312750] [2024-12-02 07:34:45,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:45,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:34:45,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:34:45,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:34:45,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:34:45,757 INFO L87 Difference]: Start difference. First operand 484 states and 744 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:48,259 INFO L93 Difference]: Finished difference Result 1241 states and 1897 transitions. [2024-12-02 07:34:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 07:34:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:34:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:48,262 INFO L225 Difference]: With dead ends: 1241 [2024-12-02 07:34:48,262 INFO L226 Difference]: Without dead ends: 938 [2024-12-02 07:34:48,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:34:48,263 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 781 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:48,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 950 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:34:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-12-02 07:34:48,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 482. [2024-12-02 07:34:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 409 states have (on average 1.488997555012225) internal successors, (609), 410 states have internal predecessors, (609), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:34:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 741 transitions. [2024-12-02 07:34:48,297 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 741 transitions. Word has length 203 [2024-12-02 07:34:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:48,298 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 741 transitions. [2024-12-02 07:34:48,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:48,298 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 741 transitions. [2024-12-02 07:34:48,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:34:48,299 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:48,299 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:48,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:34:48,299 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:48,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash -910678009, now seen corresponding path program 1 times [2024-12-02 07:34:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:34:48,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037760151] [2024-12-02 07:34:48,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:34:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:34:48,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:34:48,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037760151] [2024-12-02 07:34:48,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037760151] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:48,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:48,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:34:48,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324591581] [2024-12-02 07:34:48,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:48,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:34:48,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:34:48,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:34:48,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:34:48,439 INFO L87 Difference]: Start difference. First operand 482 states and 741 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:48,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:48,553 INFO L93 Difference]: Finished difference Result 856 states and 1317 transitions. [2024-12-02 07:34:48,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:34:48,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:34:48,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:48,555 INFO L225 Difference]: With dead ends: 856 [2024-12-02 07:34:48,555 INFO L226 Difference]: Without dead ends: 545 [2024-12-02 07:34:48,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:34:48,556 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 115 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:48,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 518 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:34:48,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-12-02 07:34:48,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 440. [2024-12-02 07:34:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 370 states have (on average 1.4675675675675677) internal successors, (543), 370 states have internal predecessors, (543), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:34:48,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 667 transitions. [2024-12-02 07:34:48,604 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 667 transitions. Word has length 203 [2024-12-02 07:34:48,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:48,604 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 667 transitions. [2024-12-02 07:34:48,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:34:48,605 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 667 transitions. [2024-12-02 07:34:48,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:34:48,606 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:48,606 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:48,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:34:48,607 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:48,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:48,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1921795259, now seen corresponding path program 1 times [2024-12-02 07:34:48,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:34:48,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805133489] [2024-12-02 07:34:48,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:48,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:34:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:34:53,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:34:53,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805133489] [2024-12-02 07:34:53,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805133489] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:53,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:53,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:34:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250942202] [2024-12-02 07:34:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:53,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:34:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:34:53,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:34:53,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:34:53,587 INFO L87 Difference]: Start difference. First operand 440 states and 667 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:34:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:56,741 INFO L93 Difference]: Finished difference Result 990 states and 1493 transitions. [2024-12-02 07:34:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:34:56,742 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 203 [2024-12-02 07:34:56,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:56,745 INFO L225 Difference]: With dead ends: 990 [2024-12-02 07:34:56,745 INFO L226 Difference]: Without dead ends: 729 [2024-12-02 07:34:56,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:34:56,747 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 627 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:56,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1164 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 07:34:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-12-02 07:34:56,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 461. [2024-12-02 07:34:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 391 states have (on average 1.4757033248081841) internal successors, (577), 391 states have internal predecessors, (577), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:34:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 701 transitions. [2024-12-02 07:34:56,780 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 701 transitions. Word has length 203 [2024-12-02 07:34:56,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:56,780 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 701 transitions. [2024-12-02 07:34:56,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:34:56,780 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 701 transitions. [2024-12-02 07:34:56,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 07:34:56,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:56,781 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:56,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:34:56,781 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:56,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:56,781 INFO L85 PathProgramCache]: Analyzing trace with hash 784824135, now seen corresponding path program 1 times [2024-12-02 07:34:56,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:34:56,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388682896] [2024-12-02 07:34:56,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:56,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:34:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:35:06,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:06,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388682896] [2024-12-02 07:35:06,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388682896] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:06,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:06,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:35:06,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171777430] [2024-12-02 07:35:06,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:06,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:35:06,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:06,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:35:06,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:35:06,883 INFO L87 Difference]: Start difference. First operand 461 states and 701 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:35:07,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:07,980 INFO L93 Difference]: Finished difference Result 872 states and 1319 transitions. [2024-12-02 07:35:07,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:35:07,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 203 [2024-12-02 07:35:07,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:07,982 INFO L225 Difference]: With dead ends: 872 [2024-12-02 07:35:07,983 INFO L226 Difference]: Without dead ends: 611 [2024-12-02 07:35:07,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:35:07,983 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 357 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:07,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 519 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:35:07,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-12-02 07:35:08,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 480. [2024-12-02 07:35:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 410 states have (on average 1.4829268292682927) internal successors, (608), 410 states have internal predecessors, (608), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:35:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 732 transitions. [2024-12-02 07:35:08,015 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 732 transitions. Word has length 203 [2024-12-02 07:35:08,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:08,015 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 732 transitions. [2024-12-02 07:35:08,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:35:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 732 transitions. [2024-12-02 07:35:08,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:35:08,016 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:08,016 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:08,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:35:08,017 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:08,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash 10077501, now seen corresponding path program 1 times [2024-12-02 07:35:08,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:08,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277411983] [2024-12-02 07:35:08,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:08,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:30,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:35:30,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:30,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277411983] [2024-12-02 07:35:30,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277411983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:30,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:30,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:35:30,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763629520] [2024-12-02 07:35:30,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:30,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:35:30,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:30,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:35:30,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:35:30,854 INFO L87 Difference]: Start difference. First operand 480 states and 732 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:35:32,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:32,179 INFO L93 Difference]: Finished difference Result 535 states and 800 transitions. [2024-12-02 07:35:32,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:32,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-12-02 07:35:32,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:32,181 INFO L225 Difference]: With dead ends: 535 [2024-12-02 07:35:32,181 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 07:35:32,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:35:32,182 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 118 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:32,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 980 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:35:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 07:35:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 502. [2024-12-02 07:35:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 431 states have (on average 1.4756380510440836) internal successors, (636), 431 states have internal predecessors, (636), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:35:32,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 760 transitions. [2024-12-02 07:35:32,220 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 760 transitions. Word has length 204 [2024-12-02 07:35:32,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:32,220 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 760 transitions. [2024-12-02 07:35:32,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:35:32,220 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 760 transitions. [2024-12-02 07:35:32,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:35:32,221 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:32,221 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:32,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:35:32,221 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:32,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash -47491707, now seen corresponding path program 1 times [2024-12-02 07:35:32,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:32,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845056866] [2024-12-02 07:35:32,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:32,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:43,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:35:43,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:43,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845056866] [2024-12-02 07:35:43,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845056866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:43,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:43,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:35:43,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905786777] [2024-12-02 07:35:43,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:43,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:35:43,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:43,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:35:43,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:35:43,226 INFO L87 Difference]: Start difference. First operand 502 states and 760 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:35:45,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:45,764 INFO L93 Difference]: Finished difference Result 908 states and 1370 transitions. [2024-12-02 07:35:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:45,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-12-02 07:35:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:45,767 INFO L225 Difference]: With dead ends: 908 [2024-12-02 07:35:45,767 INFO L226 Difference]: Without dead ends: 608 [2024-12-02 07:35:45,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:35:45,768 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 227 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:45,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 506 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:35:45,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-12-02 07:35:45,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 482. [2024-12-02 07:35:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 411 states have (on average 1.4744525547445255) internal successors, (606), 411 states have internal predecessors, (606), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:35:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 730 transitions. [2024-12-02 07:35:45,832 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 730 transitions. Word has length 204 [2024-12-02 07:35:45,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:45,832 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 730 transitions. [2024-12-02 07:35:45,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:35:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 730 transitions. [2024-12-02 07:35:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:35:45,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:45,833 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:45,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:35:45,834 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:45,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:45,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1884603051, now seen corresponding path program 1 times [2024-12-02 07:35:45,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:45,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078776576] [2024-12-02 07:35:45,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:45,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:35:57,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:57,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078776576] [2024-12-02 07:35:57,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078776576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:57,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:57,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:35:57,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704614363] [2024-12-02 07:35:57,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:57,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:35:57,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:57,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:35:57,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:35:57,195 INFO L87 Difference]: Start difference. First operand 482 states and 730 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:00,985 INFO L93 Difference]: Finished difference Result 1184 states and 1764 transitions. [2024-12-02 07:36:00,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 07:36:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-12-02 07:36:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:00,988 INFO L225 Difference]: With dead ends: 1184 [2024-12-02 07:36:00,988 INFO L226 Difference]: Without dead ends: 893 [2024-12-02 07:36:00,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:36:00,989 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 460 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:00,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 728 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 07:36:00,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2024-12-02 07:36:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 491. [2024-12-02 07:36:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 420 states have (on average 1.4785714285714286) internal successors, (621), 420 states have internal predecessors, (621), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 745 transitions. [2024-12-02 07:36:01,028 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 745 transitions. Word has length 204 [2024-12-02 07:36:01,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:01,029 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 745 transitions. [2024-12-02 07:36:01,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:01,029 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 745 transitions. [2024-12-02 07:36:01,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:01,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:01,029 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:01,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:36:01,030 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:01,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:01,030 INFO L85 PathProgramCache]: Analyzing trace with hash 604739373, now seen corresponding path program 1 times [2024-12-02 07:36:01,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:01,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902384315] [2024-12-02 07:36:01,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:01,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:08,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:08,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902384315] [2024-12-02 07:36:08,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902384315] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:08,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:08,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:36:08,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148910905] [2024-12-02 07:36:08,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:08,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:36:08,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:08,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:36:08,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:36:08,588 INFO L87 Difference]: Start difference. First operand 491 states and 745 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:11,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:11,148 INFO L93 Difference]: Finished difference Result 1159 states and 1744 transitions. [2024-12-02 07:36:11,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:36:11,149 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-12-02 07:36:11,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:11,151 INFO L225 Difference]: With dead ends: 1159 [2024-12-02 07:36:11,151 INFO L226 Difference]: Without dead ends: 868 [2024-12-02 07:36:11,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:36:11,152 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 636 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:11,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1168 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 07:36:11,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-12-02 07:36:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 508. [2024-12-02 07:36:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 437 states have (on average 1.4851258581235698) internal successors, (649), 437 states have internal predecessors, (649), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 773 transitions. [2024-12-02 07:36:11,202 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 773 transitions. Word has length 204 [2024-12-02 07:36:11,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:11,202 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 773 transitions. [2024-12-02 07:36:11,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 773 transitions. [2024-12-02 07:36:11,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:11,203 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:11,203 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:11,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:36:11,203 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:11,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash -109541655, now seen corresponding path program 1 times [2024-12-02 07:36:11,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:11,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484268431] [2024-12-02 07:36:11,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:11,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:22,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:22,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484268431] [2024-12-02 07:36:22,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484268431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:22,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:22,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:36:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25736484] [2024-12-02 07:36:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:22,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:36:22,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:22,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:36:22,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:36:22,891 INFO L87 Difference]: Start difference. First operand 508 states and 773 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:36:29,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:29,949 INFO L93 Difference]: Finished difference Result 1165 states and 1745 transitions. [2024-12-02 07:36:29,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 07:36:29,950 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 204 [2024-12-02 07:36:29,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:29,952 INFO L225 Difference]: With dead ends: 1165 [2024-12-02 07:36:29,952 INFO L226 Difference]: Without dead ends: 874 [2024-12-02 07:36:29,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 07:36:29,953 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 1338 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:29,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 857 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 07:36:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-12-02 07:36:29,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 507. [2024-12-02 07:36:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 436 states have (on average 1.4839449541284404) internal successors, (647), 436 states have internal predecessors, (647), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 771 transitions. [2024-12-02 07:36:29,992 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 771 transitions. Word has length 204 [2024-12-02 07:36:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:29,992 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 771 transitions. [2024-12-02 07:36:29,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:36:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 771 transitions. [2024-12-02 07:36:29,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:29,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:29,993 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:29,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:36:29,993 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:29,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:29,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1389405333, now seen corresponding path program 1 times [2024-12-02 07:36:29,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:29,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908817581] [2024-12-02 07:36:29,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:29,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:36,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:36,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908817581] [2024-12-02 07:36:36,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908817581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:36,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:36,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:36:36,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464235917] [2024-12-02 07:36:36,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:36,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:36:36,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:36,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:36:36,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:36:36,482 INFO L87 Difference]: Start difference. First operand 507 states and 771 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:38,448 INFO L93 Difference]: Finished difference Result 1083 states and 1630 transitions. [2024-12-02 07:36:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:36:38,449 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-12-02 07:36:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:38,451 INFO L225 Difference]: With dead ends: 1083 [2024-12-02 07:36:38,451 INFO L226 Difference]: Without dead ends: 792 [2024-12-02 07:36:38,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:36:38,452 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 690 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:38,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 932 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:36:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-12-02 07:36:38,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 504. [2024-12-02 07:36:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 433 states have (on average 1.4826789838337182) internal successors, (642), 433 states have internal predecessors, (642), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 766 transitions. [2024-12-02 07:36:38,491 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 766 transitions. Word has length 204 [2024-12-02 07:36:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:38,491 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 766 transitions. [2024-12-02 07:36:38,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 766 transitions. [2024-12-02 07:36:38,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:38,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:38,492 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:38,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:36:38,492 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:38,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:38,492 INFO L85 PathProgramCache]: Analyzing trace with hash 823594091, now seen corresponding path program 1 times [2024-12-02 07:36:38,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:38,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738649921] [2024-12-02 07:36:38,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:38,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738649921] [2024-12-02 07:36:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738649921] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:39,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:39,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:36:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83807252] [2024-12-02 07:36:39,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:39,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:36:39,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:39,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:36:39,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:36:39,212 INFO L87 Difference]: Start difference. First operand 504 states and 766 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:40,096 INFO L93 Difference]: Finished difference Result 1020 states and 1529 transitions. [2024-12-02 07:36:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:36:40,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-12-02 07:36:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:40,098 INFO L225 Difference]: With dead ends: 1020 [2024-12-02 07:36:40,098 INFO L226 Difference]: Without dead ends: 719 [2024-12-02 07:36:40,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:36:40,099 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 492 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:40,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 606 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:36:40,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-12-02 07:36:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 491. [2024-12-02 07:36:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 420 states have (on average 1.4785714285714286) internal successors, (621), 420 states have internal predecessors, (621), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 745 transitions. [2024-12-02 07:36:40,138 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 745 transitions. Word has length 204 [2024-12-02 07:36:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:40,139 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 745 transitions. [2024-12-02 07:36:40,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 745 transitions. [2024-12-02 07:36:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:40,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:40,140 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:40,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:36:40,140 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:40,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:40,140 INFO L85 PathProgramCache]: Analyzing trace with hash 109313063, now seen corresponding path program 1 times [2024-12-02 07:36:40,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:40,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424365159] [2024-12-02 07:36:40,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:40,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:45,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:45,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:45,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424365159] [2024-12-02 07:36:45,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424365159] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:45,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:45,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:36:45,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876899499] [2024-12-02 07:36:45,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:45,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:36:45,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:45,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:36:45,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:36:45,939 INFO L87 Difference]: Start difference. First operand 491 states and 745 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:47,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:47,162 INFO L93 Difference]: Finished difference Result 928 states and 1395 transitions. [2024-12-02 07:36:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:36:47,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-12-02 07:36:47,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:47,165 INFO L225 Difference]: With dead ends: 928 [2024-12-02 07:36:47,165 INFO L226 Difference]: Without dead ends: 637 [2024-12-02 07:36:47,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:36:47,166 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 445 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:47,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 513 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:36:47,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-12-02 07:36:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 467. [2024-12-02 07:36:47,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 396 states have (on average 1.4772727272727273) internal successors, (585), 396 states have internal predecessors, (585), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:47,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 709 transitions. [2024-12-02 07:36:47,204 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 709 transitions. Word has length 204 [2024-12-02 07:36:47,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:47,205 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 709 transitions. [2024-12-02 07:36:47,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 709 transitions. [2024-12-02 07:36:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:47,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:47,206 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:47,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 07:36:47,206 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:47,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:47,206 INFO L85 PathProgramCache]: Analyzing trace with hash 745287983, now seen corresponding path program 1 times [2024-12-02 07:36:47,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:47,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272764796] [2024-12-02 07:36:47,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:47,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:48,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:48,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272764796] [2024-12-02 07:36:48,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272764796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:48,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:48,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:36:48,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088661814] [2024-12-02 07:36:48,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:48,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:36:48,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:48,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:36:48,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:36:48,217 INFO L87 Difference]: Start difference. First operand 467 states and 709 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:49,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:49,440 INFO L93 Difference]: Finished difference Result 907 states and 1360 transitions. [2024-12-02 07:36:49,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:36:49,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-12-02 07:36:49,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:49,443 INFO L225 Difference]: With dead ends: 907 [2024-12-02 07:36:49,443 INFO L226 Difference]: Without dead ends: 631 [2024-12-02 07:36:49,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:36:49,444 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 517 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:49,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 841 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:36:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-12-02 07:36:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 476. [2024-12-02 07:36:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 405 states have (on average 1.4790123456790123) internal successors, (599), 405 states have internal predecessors, (599), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:49,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 723 transitions. [2024-12-02 07:36:49,490 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 723 transitions. Word has length 204 [2024-12-02 07:36:49,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:49,490 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 723 transitions. [2024-12-02 07:36:49,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 723 transitions. [2024-12-02 07:36:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:49,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:49,492 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:49,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 07:36:49,492 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:49,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2075746768, now seen corresponding path program 1 times [2024-12-02 07:36:49,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:49,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104072012] [2024-12-02 07:36:49,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:49,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:50,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:50,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104072012] [2024-12-02 07:36:50,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104072012] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:50,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:50,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:36:50,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361651368] [2024-12-02 07:36:50,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:50,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:36:50,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:50,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:36:50,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:36:50,650 INFO L87 Difference]: Start difference. First operand 476 states and 723 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:52,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:52,432 INFO L93 Difference]: Finished difference Result 1024 states and 1532 transitions. [2024-12-02 07:36:52,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:36:52,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2024-12-02 07:36:52,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:52,434 INFO L225 Difference]: With dead ends: 1024 [2024-12-02 07:36:52,434 INFO L226 Difference]: Without dead ends: 741 [2024-12-02 07:36:52,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:36:52,435 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 553 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:52,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 931 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:36:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-12-02 07:36:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 480. [2024-12-02 07:36:52,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 409 states have (on average 1.4792176039119804) internal successors, (605), 409 states have internal predecessors, (605), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:36:52,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 729 transitions. [2024-12-02 07:36:52,476 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 729 transitions. Word has length 204 [2024-12-02 07:36:52,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:52,477 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 729 transitions. [2024-12-02 07:36:52,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:36:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 729 transitions. [2024-12-02 07:36:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:52,477 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:52,477 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:52,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 07:36:52,478 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:52,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1395688398, now seen corresponding path program 1 times [2024-12-02 07:36:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:52,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749425182] [2024-12-02 07:36:52,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:52,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:52,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749425182] [2024-12-02 07:36:52,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749425182] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:52,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:52,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:36:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325892874] [2024-12-02 07:36:52,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:52,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:36:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:52,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:36:52,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:36:52,651 INFO L87 Difference]: Start difference. First operand 480 states and 729 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:52,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:52,864 INFO L93 Difference]: Finished difference Result 858 states and 1290 transitions. [2024-12-02 07:36:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:36:52,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-12-02 07:36:52,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:52,867 INFO L225 Difference]: With dead ends: 858 [2024-12-02 07:36:52,867 INFO L226 Difference]: Without dead ends: 569 [2024-12-02 07:36:52,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 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 07:36:52,867 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 125 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:52,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 416 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:36:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-12-02 07:36:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 529. [2024-12-02 07:36:52,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 455 states have (on average 1.4615384615384615) internal successors, (665), 456 states have internal predecessors, (665), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:36:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 793 transitions. [2024-12-02 07:36:52,921 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 793 transitions. Word has length 204 [2024-12-02 07:36:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:52,921 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 793 transitions. [2024-12-02 07:36:52,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 793 transitions. [2024-12-02 07:36:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 07:36:52,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:52,922 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:52,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 07:36:52,922 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:52,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:52,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1861561919, now seen corresponding path program 1 times [2024-12-02 07:36:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:52,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635013815] [2024-12-02 07:36:52,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:52,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:36:53,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:53,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635013815] [2024-12-02 07:36:53,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635013815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:53,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:53,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:53,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391836025] [2024-12-02 07:36:53,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:53,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:53,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:53,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:53,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:53,015 INFO L87 Difference]: Start difference. First operand 529 states and 793 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:53,098 INFO L93 Difference]: Finished difference Result 867 states and 1307 transitions. [2024-12-02 07:36:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:53,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 204 [2024-12-02 07:36:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:53,100 INFO L225 Difference]: With dead ends: 867 [2024-12-02 07:36:53,100 INFO L226 Difference]: Without dead ends: 534 [2024-12-02 07:36:53,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 07:36:53,101 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:53,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-12-02 07:36:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 533. [2024-12-02 07:36:53,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 459 states have (on average 1.457516339869281) internal successors, (669), 460 states have internal predecessors, (669), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:36:53,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 797 transitions. [2024-12-02 07:36:53,152 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 797 transitions. Word has length 204 [2024-12-02 07:36:53,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:53,152 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 797 transitions. [2024-12-02 07:36:53,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:36:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 797 transitions. [2024-12-02 07:36:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 07:36:53,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:53,153 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:53,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 07:36:53,153 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:53,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash -351738177, now seen corresponding path program 1 times [2024-12-02 07:36:53,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:53,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639947387] [2024-12-02 07:36:53,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:53,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:37:36,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:36,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639947387] [2024-12-02 07:37:36,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639947387] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:36,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:36,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:37:36,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800351189] [2024-12-02 07:37:36,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:36,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:37:36,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:36,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:37:36,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:37:36,776 INFO L87 Difference]: Start difference. First operand 533 states and 797 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:37:37,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:37,642 INFO L93 Difference]: Finished difference Result 637 states and 925 transitions. [2024-12-02 07:37:37,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:37:37,643 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-12-02 07:37:37,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:37,647 INFO L225 Difference]: With dead ends: 637 [2024-12-02 07:37:37,647 INFO L226 Difference]: Without dead ends: 635 [2024-12-02 07:37:37,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:37:37,647 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:37,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1293 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:37:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-12-02 07:37:37,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 535. [2024-12-02 07:37:37,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 461 states have (on average 1.4555314533622559) internal successors, (671), 462 states have internal predecessors, (671), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:37:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 799 transitions. [2024-12-02 07:37:37,699 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 799 transitions. Word has length 205 [2024-12-02 07:37:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:37,699 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 799 transitions. [2024-12-02 07:37:37,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:37:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 799 transitions. [2024-12-02 07:37:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 07:37:37,700 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:37,700 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:37,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 07:37:37,700 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:37,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:37,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1000544890, now seen corresponding path program 1 times [2024-12-02 07:37:37,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:37,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151345668] [2024-12-02 07:37:37,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:37,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:37:46,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:46,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151345668] [2024-12-02 07:37:46,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151345668] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:46,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:46,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:37:46,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416167134] [2024-12-02 07:37:46,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:46,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:37:46,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:46,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:37:46,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:37:46,737 INFO L87 Difference]: Start difference. First operand 535 states and 799 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:37:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:47,701 INFO L93 Difference]: Finished difference Result 980 states and 1458 transitions. [2024-12-02 07:37:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:37:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-12-02 07:37:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:47,703 INFO L225 Difference]: With dead ends: 980 [2024-12-02 07:37:47,704 INFO L226 Difference]: Without dead ends: 643 [2024-12-02 07:37:47,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:37:47,704 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 329 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:47,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 636 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:37:47,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-12-02 07:37:47,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 558. [2024-12-02 07:37:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 484 states have (on average 1.4607438016528926) internal successors, (707), 485 states have internal predecessors, (707), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:37:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 835 transitions. [2024-12-02 07:37:47,758 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 835 transitions. Word has length 205 [2024-12-02 07:37:47,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:47,758 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 835 transitions. [2024-12-02 07:37:47,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:37:47,758 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 835 transitions. [2024-12-02 07:37:47,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 07:37:47,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:47,759 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:47,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 07:37:47,759 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:47,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:47,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1605478664, now seen corresponding path program 1 times [2024-12-02 07:37:47,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:47,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738417014] [2024-12-02 07:37:47,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:47,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:38:00,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:00,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738417014] [2024-12-02 07:38:00,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738417014] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:00,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:00,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:38:00,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578348509] [2024-12-02 07:38:00,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:00,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:38:00,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:00,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:38:00,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:38:00,211 INFO L87 Difference]: Start difference. First operand 558 states and 835 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:38:04,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:04,804 INFO L93 Difference]: Finished difference Result 1247 states and 1845 transitions. [2024-12-02 07:38:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:38:04,805 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 205 [2024-12-02 07:38:04,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:04,808 INFO L225 Difference]: With dead ends: 1247 [2024-12-02 07:38:04,808 INFO L226 Difference]: Without dead ends: 895 [2024-12-02 07:38:04,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=250, Invalid=680, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:38:04,810 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 771 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:04,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 930 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 07:38:04,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-12-02 07:38:04,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 568. [2024-12-02 07:38:04,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 494 states have (on average 1.4635627530364372) internal successors, (723), 495 states have internal predecessors, (723), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:38:04,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 851 transitions. [2024-12-02 07:38:04,877 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 851 transitions. Word has length 205 [2024-12-02 07:38:04,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:04,877 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 851 transitions. [2024-12-02 07:38:04,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:38:04,877 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 851 transitions. [2024-12-02 07:38:04,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 07:38:04,878 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:04,878 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:04,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 07:38:04,879 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:04,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2009430262, now seen corresponding path program 1 times [2024-12-02 07:38:04,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:04,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920331841] [2024-12-02 07:38:04,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:04,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:38:18,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:18,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920331841] [2024-12-02 07:38:18,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920331841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:18,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:18,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:38:18,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567210196] [2024-12-02 07:38:18,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:18,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:38:18,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:18,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:38:18,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:38:18,095 INFO L87 Difference]: Start difference. First operand 568 states and 851 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:19,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:19,669 INFO L93 Difference]: Finished difference Result 968 states and 1446 transitions. [2024-12-02 07:38:19,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:38:19,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-12-02 07:38:19,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:19,672 INFO L225 Difference]: With dead ends: 968 [2024-12-02 07:38:19,672 INFO L226 Difference]: Without dead ends: 616 [2024-12-02 07:38:19,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:38:19,673 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 227 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:19,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 625 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:38:19,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-12-02 07:38:19,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 548. [2024-12-02 07:38:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 474 states have (on average 1.4578059071729959) internal successors, (691), 475 states have internal predecessors, (691), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:38:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 819 transitions. [2024-12-02 07:38:19,727 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 819 transitions. Word has length 205 [2024-12-02 07:38:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:19,727 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 819 transitions. [2024-12-02 07:38:19,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 819 transitions. [2024-12-02 07:38:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 07:38:19,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:19,728 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:19,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 07:38:19,728 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:19,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:19,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1818193340, now seen corresponding path program 1 times [2024-12-02 07:38:19,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:19,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009708970] [2024-12-02 07:38:19,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:19,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:38:20,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:20,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009708970] [2024-12-02 07:38:20,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009708970] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:20,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:20,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:38:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286117587] [2024-12-02 07:38:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:20,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:38:20,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:20,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:38:20,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:38:20,802 INFO L87 Difference]: Start difference. First operand 548 states and 819 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:22,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:22,375 INFO L93 Difference]: Finished difference Result 1083 states and 1607 transitions. [2024-12-02 07:38:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:38:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-12-02 07:38:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:22,379 INFO L225 Difference]: With dead ends: 1083 [2024-12-02 07:38:22,379 INFO L226 Difference]: Without dead ends: 727 [2024-12-02 07:38:22,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:38:22,380 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 334 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:22,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 923 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:38:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-12-02 07:38:22,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 548. [2024-12-02 07:38:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 474 states have (on average 1.4556962025316456) internal successors, (690), 475 states have internal predecessors, (690), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:38:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 818 transitions. [2024-12-02 07:38:22,443 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 818 transitions. Word has length 205 [2024-12-02 07:38:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:22,443 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 818 transitions. [2024-12-02 07:38:22,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 818 transitions. [2024-12-02 07:38:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 07:38:22,444 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:22,444 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:22,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 07:38:22,444 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:22,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash 671335622, now seen corresponding path program 1 times [2024-12-02 07:38:22,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:22,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720902695] [2024-12-02 07:38:22,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:22,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:38:22,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:22,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720902695] [2024-12-02 07:38:22,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720902695] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:22,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:22,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:38:22,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058499494] [2024-12-02 07:38:22,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:22,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:38:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:22,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:38:22,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:38:22,836 INFO L87 Difference]: Start difference. First operand 548 states and 818 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:23,335 INFO L93 Difference]: Finished difference Result 1004 states and 1493 transitions. [2024-12-02 07:38:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:38:23,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 205 [2024-12-02 07:38:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:23,338 INFO L225 Difference]: With dead ends: 1004 [2024-12-02 07:38:23,339 INFO L226 Difference]: Without dead ends: 648 [2024-12-02 07:38:23,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:38:23,339 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 172 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:23,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 592 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:38:23,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-12-02 07:38:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 539. [2024-12-02 07:38:23,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 465 states have (on average 1.4537634408602151) internal successors, (676), 466 states have internal predecessors, (676), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:38:23,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 804 transitions. [2024-12-02 07:38:23,413 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 804 transitions. Word has length 205 [2024-12-02 07:38:23,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:23,413 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 804 transitions. [2024-12-02 07:38:23,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:23,413 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 804 transitions. [2024-12-02 07:38:23,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 07:38:23,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:23,414 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:23,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 07:38:23,414 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:23,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash -74486418, now seen corresponding path program 1 times [2024-12-02 07:38:23,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:23,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935179262] [2024-12-02 07:38:23,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:23,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:38:23,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:23,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935179262] [2024-12-02 07:38:23,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935179262] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:23,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:23,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:38:23,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436366805] [2024-12-02 07:38:23,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:23,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:38:23,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:23,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:38:23,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:38:23,471 INFO L87 Difference]: Start difference. First operand 539 states and 804 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:23,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:23,605 INFO L93 Difference]: Finished difference Result 949 states and 1403 transitions. [2024-12-02 07:38:23,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:38:23,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-12-02 07:38:23,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:23,608 INFO L225 Difference]: With dead ends: 949 [2024-12-02 07:38:23,608 INFO L226 Difference]: Without dead ends: 602 [2024-12-02 07:38:23,609 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 07:38:23,610 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 41 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:23,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 318 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:38:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-12-02 07:38:23,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 581. [2024-12-02 07:38:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 491 states have (on average 1.4276985743380854) internal successors, (701), 494 states have internal predecessors, (701), 76 states have call successors, (76), 13 states have call predecessors, (76), 13 states have return successors, (76), 73 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 07:38:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 853 transitions. [2024-12-02 07:38:23,696 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 853 transitions. Word has length 206 [2024-12-02 07:38:23,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:23,696 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 853 transitions. [2024-12-02 07:38:23,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 853 transitions. [2024-12-02 07:38:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 07:38:23,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:23,697 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:23,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 07:38:23,697 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:23,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:23,698 INFO L85 PathProgramCache]: Analyzing trace with hash -129766895, now seen corresponding path program 1 times [2024-12-02 07:38:23,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:23,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050503994] [2024-12-02 07:38:23,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:38:23,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:23,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050503994] [2024-12-02 07:38:23,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050503994] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:23,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:23,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:38:23,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356287851] [2024-12-02 07:38:23,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:23,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:38:23,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:23,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:38:23,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:38:23,753 INFO L87 Difference]: Start difference. First operand 581 states and 853 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:23,876 INFO L93 Difference]: Finished difference Result 991 states and 1445 transitions. [2024-12-02 07:38:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:38:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-12-02 07:38:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:23,879 INFO L225 Difference]: With dead ends: 991 [2024-12-02 07:38:23,879 INFO L226 Difference]: Without dead ends: 592 [2024-12-02 07:38:23,880 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 07:38:23,880 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 48 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:23,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 294 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:38:23,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-12-02 07:38:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 543. [2024-12-02 07:38:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 467 states have (on average 1.4411134903640257) internal successors, (673), 468 states have internal predecessors, (673), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:38:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 801 transitions. [2024-12-02 07:38:23,993 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 801 transitions. Word has length 206 [2024-12-02 07:38:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:23,993 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 801 transitions. [2024-12-02 07:38:23,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:38:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 801 transitions. [2024-12-02 07:38:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 07:38:23,994 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:23,994 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:23,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 07:38:23,994 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:23,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash 908403158, now seen corresponding path program 1 times [2024-12-02 07:38:23,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:23,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402008684] [2024-12-02 07:38:23,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:23,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:31,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:39:31,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:31,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402008684] [2024-12-02 07:39:31,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402008684] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:31,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:31,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:39:31,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95448188] [2024-12-02 07:39:31,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:31,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:39:31,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:31,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:39:31,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:39:31,180 INFO L87 Difference]: Start difference. First operand 543 states and 801 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:32,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:32,386 INFO L93 Difference]: Finished difference Result 645 states and 929 transitions. [2024-12-02 07:39:32,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:39:32,387 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-12-02 07:39:32,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:32,388 INFO L225 Difference]: With dead ends: 645 [2024-12-02 07:39:32,388 INFO L226 Difference]: Without dead ends: 643 [2024-12-02 07:39:32,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:39:32,389 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 104 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:32,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1569 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:39:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-12-02 07:39:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 533. [2024-12-02 07:39:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 457 states have (on average 1.4463894967177242) internal successors, (661), 458 states have internal predecessors, (661), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:39:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 789 transitions. [2024-12-02 07:39:32,455 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 789 transitions. Word has length 206 [2024-12-02 07:39:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:32,455 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 789 transitions. [2024-12-02 07:39:32,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 789 transitions. [2024-12-02 07:39:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-02 07:39:32,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:32,456 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:32,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 07:39:32,456 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:32,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:32,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1900298796, now seen corresponding path program 1 times [2024-12-02 07:39:32,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:32,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014534366] [2024-12-02 07:39:32,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:32,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:39:44,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:44,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014534366] [2024-12-02 07:39:44,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014534366] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:44,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:44,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:39:44,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163414023] [2024-12-02 07:39:44,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:44,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:39:44,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:44,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:39:44,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:39:44,845 INFO L87 Difference]: Start difference. First operand 533 states and 789 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:45,959 INFO L93 Difference]: Finished difference Result 635 states and 913 transitions. [2024-12-02 07:39:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:39:45,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 207 [2024-12-02 07:39:45,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:45,961 INFO L225 Difference]: With dead ends: 635 [2024-12-02 07:39:45,961 INFO L226 Difference]: Without dead ends: 633 [2024-12-02 07:39:45,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:39:45,961 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 134 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:45,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 898 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:39:45,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-12-02 07:39:46,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 540. [2024-12-02 07:39:46,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 464 states have (on average 1.4439655172413792) internal successors, (670), 465 states have internal predecessors, (670), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:39:46,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 798 transitions. [2024-12-02 07:39:46,026 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 798 transitions. Word has length 207 [2024-12-02 07:39:46,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:46,026 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 798 transitions. [2024-12-02 07:39:46,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:46,026 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 798 transitions. [2024-12-02 07:39:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-02 07:39:46,027 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:46,027 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:46,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 07:39:46,027 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:46,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:46,027 INFO L85 PathProgramCache]: Analyzing trace with hash 379959907, now seen corresponding path program 1 times [2024-12-02 07:39:46,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:46,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167326308] [2024-12-02 07:39:46,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:46,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:46,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:39:46,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:46,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167326308] [2024-12-02 07:39:46,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167326308] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:46,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:46,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:39:46,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220986504] [2024-12-02 07:39:46,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:46,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:39:46,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:46,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:39:46,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:39:46,131 INFO L87 Difference]: Start difference. First operand 540 states and 798 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:46,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:46,328 INFO L93 Difference]: Finished difference Result 1040 states and 1528 transitions. [2024-12-02 07:39:46,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:39:46,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 207 [2024-12-02 07:39:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:46,331 INFO L225 Difference]: With dead ends: 1040 [2024-12-02 07:39:46,331 INFO L226 Difference]: Without dead ends: 686 [2024-12-02 07:39:46,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:39:46,332 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 109 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:46,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 620 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:39:46,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-12-02 07:39:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 507. [2024-12-02 07:39:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 431 states have (on average 1.445475638051044) internal successors, (623), 432 states have internal predecessors, (623), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:39:46,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 751 transitions. [2024-12-02 07:39:46,402 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 751 transitions. Word has length 207 [2024-12-02 07:39:46,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:46,402 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 751 transitions. [2024-12-02 07:39:46,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 751 transitions. [2024-12-02 07:39:46,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-12-02 07:39:46,403 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:46,403 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:46,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 07:39:46,403 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:46,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:46,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1932322030, now seen corresponding path program 1 times [2024-12-02 07:39:46,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:46,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370943263] [2024-12-02 07:39:46,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:39:49,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:49,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370943263] [2024-12-02 07:39:49,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370943263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:49,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:49,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:39:49,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290135455] [2024-12-02 07:39:49,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:49,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:39:49,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:49,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:39:49,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:39:49,603 INFO L87 Difference]: Start difference. First operand 507 states and 751 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:49,932 INFO L93 Difference]: Finished difference Result 601 states and 867 transitions. [2024-12-02 07:39:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:39:49,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 208 [2024-12-02 07:39:49,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:49,934 INFO L225 Difference]: With dead ends: 601 [2024-12-02 07:39:49,934 INFO L226 Difference]: Without dead ends: 599 [2024-12-02 07:39:49,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:39:49,935 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 88 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:49,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1266 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:39:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-12-02 07:39:50,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 517. [2024-12-02 07:39:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 441 states have (on average 1.4444444444444444) internal successors, (637), 442 states have internal predecessors, (637), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:39:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 765 transitions. [2024-12-02 07:39:50,002 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 765 transitions. Word has length 208 [2024-12-02 07:39:50,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:50,003 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 765 transitions. [2024-12-02 07:39:50,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:39:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 765 transitions. [2024-12-02 07:39:50,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-12-02 07:39:50,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:50,004 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:50,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 07:39:50,004 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:50,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:50,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1878558459, now seen corresponding path program 1 times [2024-12-02 07:39:50,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:50,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342569708] [2024-12-02 07:39:50,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:50,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:13,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:40:13,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:13,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342569708] [2024-12-02 07:40:13,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342569708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:40:13,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:40:13,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:40:13,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45848881] [2024-12-02 07:40:13,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:40:13,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:40:13,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:40:13,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:40:13,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:40:13,726 INFO L87 Difference]: Start difference. First operand 517 states and 765 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:15,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:15,308 INFO L93 Difference]: Finished difference Result 602 states and 869 transitions. [2024-12-02 07:40:15,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:40:15,308 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 208 [2024-12-02 07:40:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:15,310 INFO L225 Difference]: With dead ends: 602 [2024-12-02 07:40:15,310 INFO L226 Difference]: Without dead ends: 600 [2024-12-02 07:40:15,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:40:15,310 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 92 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:40:15,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1293 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:40:15,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-12-02 07:40:15,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 527. [2024-12-02 07:40:15,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 451 states have (on average 1.4478935698447895) internal successors, (653), 452 states have internal predecessors, (653), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:40:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 781 transitions. [2024-12-02 07:40:15,395 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 781 transitions. Word has length 208 [2024-12-02 07:40:15,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:15,395 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 781 transitions. [2024-12-02 07:40:15,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 781 transitions. [2024-12-02 07:40:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 07:40:15,396 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:15,396 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:15,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 07:40:15,396 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:15,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:15,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2142939245, now seen corresponding path program 1 times [2024-12-02 07:40:15,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:15,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994615435] [2024-12-02 07:40:15,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:15,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:40:15,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:15,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994615435] [2024-12-02 07:40:15,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994615435] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:40:15,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:40:15,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:40:15,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095505018] [2024-12-02 07:40:15,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:40:15,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:40:15,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:40:15,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:40:15,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:40:15,445 INFO L87 Difference]: Start difference. First operand 527 states and 781 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:15,593 INFO L93 Difference]: Finished difference Result 978 states and 1430 transitions. [2024-12-02 07:40:15,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:40:15,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 209 [2024-12-02 07:40:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:15,595 INFO L225 Difference]: With dead ends: 978 [2024-12-02 07:40:15,595 INFO L226 Difference]: Without dead ends: 602 [2024-12-02 07:40:15,596 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 07:40:15,596 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 42 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:40:15,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 297 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:40:15,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-12-02 07:40:15,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 549. [2024-12-02 07:40:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 473 states have (on average 1.4334038054968288) internal successors, (678), 474 states have internal predecessors, (678), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:40:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 806 transitions. [2024-12-02 07:40:15,664 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 806 transitions. Word has length 209 [2024-12-02 07:40:15,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:15,664 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 806 transitions. [2024-12-02 07:40:15,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 806 transitions. [2024-12-02 07:40:15,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 07:40:15,664 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:15,665 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:15,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 07:40:15,665 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:15,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:15,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1941551912, now seen corresponding path program 1 times [2024-12-02 07:40:15,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:15,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743939517] [2024-12-02 07:40:15,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:15,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:15,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:40:15,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:15,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743939517] [2024-12-02 07:40:15,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743939517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:40:15,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:40:15,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:40:15,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114834255] [2024-12-02 07:40:15,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:40:15,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:40:15,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:40:15,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:40:15,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:40:15,713 INFO L87 Difference]: Start difference. First operand 549 states and 806 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:15,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:15,895 INFO L93 Difference]: Finished difference Result 1001 states and 1453 transitions. [2024-12-02 07:40:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:40:15,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 209 [2024-12-02 07:40:15,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:15,898 INFO L225 Difference]: With dead ends: 1001 [2024-12-02 07:40:15,898 INFO L226 Difference]: Without dead ends: 606 [2024-12-02 07:40:15,899 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 07:40:15,899 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 40 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:40:15,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 329 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:40:15,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-12-02 07:40:16,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 543. [2024-12-02 07:40:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 467 states have (on average 1.4261241970021414) internal successors, (666), 468 states have internal predecessors, (666), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:40:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 794 transitions. [2024-12-02 07:40:16,012 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 794 transitions. Word has length 209 [2024-12-02 07:40:16,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:16,013 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 794 transitions. [2024-12-02 07:40:16,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:16,013 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 794 transitions. [2024-12-02 07:40:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 07:40:16,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:16,014 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:16,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 07:40:16,014 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:16,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:16,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1575214363, now seen corresponding path program 1 times [2024-12-02 07:40:16,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:16,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419210544] [2024-12-02 07:40:16,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:16,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:40:21,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419210544] [2024-12-02 07:40:21,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419210544] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:40:21,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:40:21,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:40:21,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12487918] [2024-12-02 07:40:21,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:40:21,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:40:21,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:40:21,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:40:21,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:40:21,943 INFO L87 Difference]: Start difference. First operand 543 states and 794 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:22,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:22,504 INFO L93 Difference]: Finished difference Result 644 states and 918 transitions. [2024-12-02 07:40:22,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:40:22,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 209 [2024-12-02 07:40:22,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:22,506 INFO L225 Difference]: With dead ends: 644 [2024-12-02 07:40:22,506 INFO L226 Difference]: Without dead ends: 642 [2024-12-02 07:40:22,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:40:22,507 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 147 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:40:22,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1315 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:40:22,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-12-02 07:40:22,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 531. [2024-12-02 07:40:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 455 states have (on average 1.432967032967033) internal successors, (652), 456 states have internal predecessors, (652), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:40:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 780 transitions. [2024-12-02 07:40:22,575 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 780 transitions. Word has length 209 [2024-12-02 07:40:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:22,575 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 780 transitions. [2024-12-02 07:40:22,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:40:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 780 transitions. [2024-12-02 07:40:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-12-02 07:40:22,576 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:22,576 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:22,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 07:40:22,576 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:22,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:22,577 INFO L85 PathProgramCache]: Analyzing trace with hash -574367443, now seen corresponding path program 1 times [2024-12-02 07:40:22,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:22,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696096397] [2024-12-02 07:40:22,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:22,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-12-02 07:40:22,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:22,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696096397] [2024-12-02 07:40:22,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696096397] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:40:22,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615827223] [2024-12-02 07:40:22,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:22,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:22,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:40:22,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:40:22,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:40:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:23,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:40:23,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:40:23,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1278 proven. 48 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2024-12-02 07:40:23,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:40:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-12-02 07:40:23,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615827223] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:40:23,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:40:23,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 20 [2024-12-02 07:40:23,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827208682] [2024-12-02 07:40:23,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:40:23,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 07:40:23,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:40:23,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 07:40:23,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:40:23,803 INFO L87 Difference]: Start difference. First operand 531 states and 780 transitions. Second operand has 20 states, 20 states have (on average 6.7) internal successors, (134), 20 states have internal predecessors, (134), 8 states have call successors, (69), 4 states have call predecessors, (69), 6 states have return successors, (71), 8 states have call predecessors, (71), 8 states have call successors, (71) [2024-12-02 07:40:24,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:24,861 INFO L93 Difference]: Finished difference Result 1049 states and 1502 transitions. [2024-12-02 07:40:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 07:40:24,861 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.7) internal successors, (134), 20 states have internal predecessors, (134), 8 states have call successors, (69), 4 states have call predecessors, (69), 6 states have return successors, (71), 8 states have call predecessors, (71), 8 states have call successors, (71) Word has length 210 [2024-12-02 07:40:24,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:24,863 INFO L225 Difference]: With dead ends: 1049 [2024-12-02 07:40:24,863 INFO L226 Difference]: Without dead ends: 618 [2024-12-02 07:40:24,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=447, Invalid=1359, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 07:40:24,864 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 311 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:40:24,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 784 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:40:24,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-12-02 07:40:24,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 539. [2024-12-02 07:40:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 457 states have (on average 1.387308533916849) internal successors, (634), 458 states have internal predecessors, (634), 64 states have call successors, (64), 17 states have call predecessors, (64), 17 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:40:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 762 transitions. [2024-12-02 07:40:24,952 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 762 transitions. Word has length 210 [2024-12-02 07:40:24,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:24,952 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 762 transitions. [2024-12-02 07:40:24,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.7) internal successors, (134), 20 states have internal predecessors, (134), 8 states have call successors, (69), 4 states have call predecessors, (69), 6 states have return successors, (71), 8 states have call predecessors, (71), 8 states have call successors, (71) [2024-12-02 07:40:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 762 transitions. [2024-12-02 07:40:24,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-12-02 07:40:24,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:24,954 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:24,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 07:40:25,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:25,154 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:25,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:25,155 INFO L85 PathProgramCache]: Analyzing trace with hash 411289536, now seen corresponding path program 1 times [2024-12-02 07:40:25,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:25,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515886495] [2024-12-02 07:40:25,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:25,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-12-02 07:40:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:25,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515886495] [2024-12-02 07:40:25,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515886495] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:40:25,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51274565] [2024-12-02 07:40:25,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:25,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:25,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:40:25,371 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:40:25,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:40:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:25,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 07:40:25,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:40:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 750 proven. 66 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2024-12-02 07:40:25,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:40:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-12-02 07:40:30,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51274565] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:40:30,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:40:30,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 13] total 25 [2024-12-02 07:40:30,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511087139] [2024-12-02 07:40:30,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:40:30,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 07:40:30,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:40:30,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 07:40:30,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:40:30,267 INFO L87 Difference]: Start difference. First operand 539 states and 762 transitions. Second operand has 25 states, 25 states have (on average 4.92) internal successors, (123), 25 states have internal predecessors, (123), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2024-12-02 07:40:32,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:32,677 INFO L93 Difference]: Finished difference Result 1292 states and 1783 transitions. [2024-12-02 07:40:32,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-12-02 07:40:32,678 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 25 states have internal predecessors, (123), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 210 [2024-12-02 07:40:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:32,680 INFO L225 Difference]: With dead ends: 1292 [2024-12-02 07:40:32,680 INFO L226 Difference]: Without dead ends: 923 [2024-12-02 07:40:32,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=972, Invalid=2934, Unknown=0, NotChecked=0, Total=3906 [2024-12-02 07:40:32,681 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 463 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:40:32,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1770 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 07:40:32,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2024-12-02 07:40:32,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 545. [2024-12-02 07:40:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 463 states have (on average 1.3520518358531317) internal successors, (626), 464 states have internal predecessors, (626), 64 states have call successors, (64), 17 states have call predecessors, (64), 17 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:40:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 754 transitions. [2024-12-02 07:40:32,768 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 754 transitions. Word has length 210 [2024-12-02 07:40:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:32,768 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 754 transitions. [2024-12-02 07:40:32,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 25 states have internal predecessors, (123), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2024-12-02 07:40:32,769 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 754 transitions. [2024-12-02 07:40:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 07:40:32,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:32,769 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:32,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:40:32,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:32,970 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:32,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:32,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1314647180, now seen corresponding path program 1 times [2024-12-02 07:40:32,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:32,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100021229] [2024-12-02 07:40:32,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:32,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-12-02 07:40:33,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:33,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100021229] [2024-12-02 07:40:33,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100021229] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:40:33,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118147259] [2024-12-02 07:40:33,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:33,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:33,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:40:33,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:40:33,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab85f12b-171d-4330-9f09-031d0ef1a27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:40:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:33,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 07:40:33,636 INFO L279 TraceCheckSpWp]: Computing forward predicates...