./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:23:13,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:23:13,812 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:23:13,818 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:23:13,819 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:23:13,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:23:13,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:23:13,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:23:13,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:23:13,848 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:23:13,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:23:13,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:23:13,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:23:13,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:23:13,850 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:23:13,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:23:13,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:23:13,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:23:13,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:23:13,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:23:13,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:23:13,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:23:13,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:23:13,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:23:13,855 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:23:13,855 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:23:13,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:23:13,855 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:23:13,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:23:13,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:23:13,856 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:23:13,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:23:13,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:23:13,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:23:13,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:23:13,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:23:13,857 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:23:13,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:23:13,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:23:13,857 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:23:13,857 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:23:13,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:23:13,858 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 [2024-11-20 08:23:14,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:23:14,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:23:14,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:23:14,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:23:14,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:23:14,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-20 08:23:15,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:23:15,612 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:23:15,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-20 08:23:15,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80206fb12/385fbf8281d243edacb55356b42e9a51/FLAG492237ddb [2024-11-20 08:23:15,994 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80206fb12/385fbf8281d243edacb55356b42e9a51 [2024-11-20 08:23:15,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:23:15,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:23:16,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:23:16,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:23:16,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:23:16,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:23:15" (1/1) ... [2024-11-20 08:23:16,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729af168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16, skipping insertion in model container [2024-11-20 08:23:16,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:23:15" (1/1) ... [2024-11-20 08:23:16,034 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:23:16,148 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-11-20 08:23:16,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:23:16,207 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:23:16,216 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-11-20 08:23:16,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:23:16,281 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:23:16,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16 WrapperNode [2024-11-20 08:23:16,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:23:16,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:23:16,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:23:16,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:23:16,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,328 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 433 [2024-11-20 08:23:16,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:23:16,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:23:16,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:23:16,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:23:16,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,343 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,358 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2024-11-20 08:23:16,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,374 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:23:16,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:23:16,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:23:16,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:23:16,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (1/1) ... [2024-11-20 08:23:16,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:23:16,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:23:16,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:23:16,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:23:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:23:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:23:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:23:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:23:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:23:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:23:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:23:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:23:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:23:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:23:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:23:16,550 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:23:16,552 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:23:16,878 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-20 08:23:16,878 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:23:16,888 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:23:16,888 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:23:16,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:23:16 BoogieIcfgContainer [2024-11-20 08:23:16,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:23:16,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:23:16,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:23:16,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:23:16,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:23:15" (1/3) ... [2024-11-20 08:23:16,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e81fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:23:16, skipping insertion in model container [2024-11-20 08:23:16,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:23:16" (2/3) ... [2024-11-20 08:23:16,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e81fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:23:16, skipping insertion in model container [2024-11-20 08:23:16,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:23:16" (3/3) ... [2024-11-20 08:23:16,897 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-27.i [2024-11-20 08:23:16,910 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:23:16,911 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:23:16,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:23:16,963 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;@34b064c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:23:16,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:23:16,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:23:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:23:16,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:16,987 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:16,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:16,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-11-20 08:23:16,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:16,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801495932] [2024-11-20 08:23:17,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:17,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:17,371 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:17,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:17,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801495932] [2024-11-20 08:23:17,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801495932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:17,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:17,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:23:17,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495492567] [2024-11-20 08:23:17,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:17,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:23:17,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:17,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:23:17,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:23:17,410 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:17,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:17,443 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-20 08:23:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:23:17,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-20 08:23:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:17,451 INFO L225 Difference]: With dead ends: 181 [2024-11-20 08:23:17,451 INFO L226 Difference]: Without dead ends: 90 [2024-11-20 08:23:17,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:23:17,457 INFO L432 NwaCegarLoop]: 129 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, 129 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 [2024-11-20 08:23:17,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:23:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-20 08:23:17,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-20 08:23:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:23:17,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-20 08:23:17,500 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-20 08:23:17,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:17,500 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-20 08:23:17,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:17,500 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-20 08:23:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:23:17,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:17,506 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:17,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:23:17,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:17,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:17,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-11-20 08:23:17,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:17,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302728706] [2024-11-20 08:23:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:17,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302728706] [2024-11-20 08:23:18,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302728706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:18,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:18,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:18,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120459022] [2024-11-20 08:23:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:18,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:18,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:18,431 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:18,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:18,563 INFO L93 Difference]: Finished difference Result 232 states and 333 transitions. [2024-11-20 08:23:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:18,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-20 08:23:18,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:18,568 INFO L225 Difference]: With dead ends: 232 [2024-11-20 08:23:18,570 INFO L226 Difference]: Without dead ends: 145 [2024-11-20 08:23:18,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:18,573 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 76 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:18,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 555 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:18,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-20 08:23:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-11-20 08:23:18,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 120 states have (on average 1.3833333333333333) internal successors, (166), 121 states have internal predecessors, (166), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 08:23:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 204 transitions. [2024-11-20 08:23:18,601 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 204 transitions. Word has length 131 [2024-11-20 08:23:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:18,602 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 204 transitions. [2024-11-20 08:23:18,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 204 transitions. [2024-11-20 08:23:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:23:18,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:18,604 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:18,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:23:18,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:18,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:18,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1362010684, now seen corresponding path program 1 times [2024-11-20 08:23:18,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:18,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873952571] [2024-11-20 08:23:18,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:18,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:19,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:19,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873952571] [2024-11-20 08:23:19,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873952571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:19,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:19,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:23:19,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622004320] [2024-11-20 08:23:19,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:19,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:23:19,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:19,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:23:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:23:19,129 INFO L87 Difference]: Start difference. First operand 142 states and 204 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:19,271 INFO L93 Difference]: Finished difference Result 420 states and 606 transitions. [2024-11-20 08:23:19,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:23:19,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-20 08:23:19,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:19,275 INFO L225 Difference]: With dead ends: 420 [2024-11-20 08:23:19,275 INFO L226 Difference]: Without dead ends: 281 [2024-11-20 08:23:19,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:23:19,279 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 80 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:19,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 377 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:19,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-20 08:23:19,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 275. [2024-11-20 08:23:19,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 232 states have (on average 1.3793103448275863) internal successors, (320), 234 states have internal predecessors, (320), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-20 08:23:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 396 transitions. [2024-11-20 08:23:19,313 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 396 transitions. Word has length 131 [2024-11-20 08:23:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:19,314 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 396 transitions. [2024-11-20 08:23:19,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:19,314 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 396 transitions. [2024-11-20 08:23:19,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:23:19,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:19,316 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:19,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:23:19,316 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:19,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 561425464, now seen corresponding path program 1 times [2024-11-20 08:23:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:19,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921364480] [2024-11-20 08:23:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:19,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:19,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921364480] [2024-11-20 08:23:19,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921364480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:19,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:19,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:19,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967800612] [2024-11-20 08:23:19,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:19,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:19,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:19,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:19,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:19,983 INFO L87 Difference]: Start difference. First operand 275 states and 396 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:20,133 INFO L93 Difference]: Finished difference Result 513 states and 737 transitions. [2024-11-20 08:23:20,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:20,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-20 08:23:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:20,136 INFO L225 Difference]: With dead ends: 513 [2024-11-20 08:23:20,136 INFO L226 Difference]: Without dead ends: 374 [2024-11-20 08:23:20,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:23:20,139 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 69 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:20,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 601 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-20 08:23:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 371. [2024-11-20 08:23:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 318 states have (on average 1.3836477987421383) internal successors, (440), 322 states have internal predecessors, (440), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-20 08:23:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 532 transitions. [2024-11-20 08:23:20,173 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 532 transitions. Word has length 131 [2024-11-20 08:23:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:20,174 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 532 transitions. [2024-11-20 08:23:20,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 532 transitions. [2024-11-20 08:23:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-20 08:23:20,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:20,176 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:20,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:23:20,176 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:20,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:20,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1080888233, now seen corresponding path program 1 times [2024-11-20 08:23:20,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:20,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88421500] [2024-11-20 08:23:20,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:20,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:20,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:20,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88421500] [2024-11-20 08:23:20,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88421500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:20,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:20,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:23:20,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566960625] [2024-11-20 08:23:20,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:20,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:23:20,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:20,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:23:20,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:23:20,660 INFO L87 Difference]: Start difference. First operand 371 states and 532 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:20,767 INFO L93 Difference]: Finished difference Result 745 states and 1068 transitions. [2024-11-20 08:23:20,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:23:20,767 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-20 08:23:20,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:20,770 INFO L225 Difference]: With dead ends: 745 [2024-11-20 08:23:20,771 INFO L226 Difference]: Without dead ends: 377 [2024-11-20 08:23:20,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:23:20,773 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 72 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:20,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 373 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-20 08:23:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 371. [2024-11-20 08:23:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 318 states have (on average 1.3773584905660377) internal successors, (438), 322 states have internal predecessors, (438), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-20 08:23:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 530 transitions. [2024-11-20 08:23:20,791 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 530 transitions. Word has length 133 [2024-11-20 08:23:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:20,791 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 530 transitions. [2024-11-20 08:23:20,792 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 530 transitions. [2024-11-20 08:23:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-20 08:23:20,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:20,794 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:20,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:23:20,794 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:20,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:20,795 INFO L85 PathProgramCache]: Analyzing trace with hash -969071277, now seen corresponding path program 1 times [2024-11-20 08:23:20,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:20,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490663865] [2024-11-20 08:23:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:20,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:21,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:21,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490663865] [2024-11-20 08:23:21,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490663865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:21,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:21,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:21,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654217858] [2024-11-20 08:23:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:21,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:21,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:21,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:21,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:21,206 INFO L87 Difference]: Start difference. First operand 371 states and 530 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:21,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:21,461 INFO L93 Difference]: Finished difference Result 733 states and 1050 transitions. [2024-11-20 08:23:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:23:21,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-20 08:23:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:21,465 INFO L225 Difference]: With dead ends: 733 [2024-11-20 08:23:21,465 INFO L226 Difference]: Without dead ends: 498 [2024-11-20 08:23:21,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:23:21,467 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 110 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:21,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 742 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:21,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-20 08:23:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 492. [2024-11-20 08:23:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 418 states have (on average 1.368421052631579) internal successors, (572), 423 states have internal predecessors, (572), 65 states have call successors, (65), 8 states have call predecessors, (65), 8 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-20 08:23:21,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 702 transitions. [2024-11-20 08:23:21,489 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 702 transitions. Word has length 133 [2024-11-20 08:23:21,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:21,490 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 702 transitions. [2024-11-20 08:23:21,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:21,490 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 702 transitions. [2024-11-20 08:23:21,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-20 08:23:21,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:21,492 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:21,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:23:21,492 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:21,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:21,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1644138669, now seen corresponding path program 1 times [2024-11-20 08:23:21,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:21,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998174762] [2024-11-20 08:23:21,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:21,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:21,695 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:21,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:21,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998174762] [2024-11-20 08:23:21,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998174762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:21,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:21,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:21,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754916239] [2024-11-20 08:23:21,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:21,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:21,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:21,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:21,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:21,697 INFO L87 Difference]: Start difference. First operand 492 states and 702 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:21,895 INFO L93 Difference]: Finished difference Result 802 states and 1143 transitions. [2024-11-20 08:23:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:23:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-20 08:23:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:21,898 INFO L225 Difference]: With dead ends: 802 [2024-11-20 08:23:21,898 INFO L226 Difference]: Without dead ends: 414 [2024-11-20 08:23:21,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:23:21,899 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 113 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:21,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 535 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:21,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-20 08:23:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 275. [2024-11-20 08:23:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 233 states have internal predecessors, (309), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-20 08:23:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 385 transitions. [2024-11-20 08:23:21,910 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 385 transitions. Word has length 133 [2024-11-20 08:23:21,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:21,911 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 385 transitions. [2024-11-20 08:23:21,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:21,911 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 385 transitions. [2024-11-20 08:23:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:23:21,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:21,912 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:21,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 08:23:21,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:21,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:21,912 INFO L85 PathProgramCache]: Analyzing trace with hash -314059782, now seen corresponding path program 1 times [2024-11-20 08:23:21,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:21,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892079066] [2024-11-20 08:23:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:21,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:22,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892079066] [2024-11-20 08:23:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892079066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:22,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:22,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:22,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431524666] [2024-11-20 08:23:22,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:22,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:22,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:22,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:22,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:22,170 INFO L87 Difference]: Start difference. First operand 275 states and 385 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:22,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:22,252 INFO L93 Difference]: Finished difference Result 657 states and 911 transitions. [2024-11-20 08:23:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:22,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-20 08:23:22,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:22,254 INFO L225 Difference]: With dead ends: 657 [2024-11-20 08:23:22,254 INFO L226 Difference]: Without dead ends: 385 [2024-11-20 08:23:22,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:22,255 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 67 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:22,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 754 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-20 08:23:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 215. [2024-11-20 08:23:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 175 states have internal predecessors, (227), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:23:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 295 transitions. [2024-11-20 08:23:22,265 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 295 transitions. Word has length 134 [2024-11-20 08:23:22,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:22,266 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 295 transitions. [2024-11-20 08:23:22,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 295 transitions. [2024-11-20 08:23:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:23:22,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:22,267 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:22,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 08:23:22,267 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:22,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:22,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-11-20 08:23:22,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:22,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869142642] [2024-11-20 08:23:22,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:22,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:23,135 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:23,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:23,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869142642] [2024-11-20 08:23:23,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869142642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:23,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:23,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:23:23,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379883374] [2024-11-20 08:23:23,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:23,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:23:23,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:23,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:23:23,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:23:23,137 INFO L87 Difference]: Start difference. First operand 215 states and 295 transitions. Second operand has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:23,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:23,521 INFO L93 Difference]: Finished difference Result 493 states and 674 transitions. [2024-11-20 08:23:23,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:23:23,521 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-20 08:23:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:23,523 INFO L225 Difference]: With dead ends: 493 [2024-11-20 08:23:23,523 INFO L226 Difference]: Without dead ends: 281 [2024-11-20 08:23:23,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:23:23,524 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:23,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1188 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:23:23,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-20 08:23:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-11-20 08:23:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 230 states have (on average 1.3) internal successors, (299), 231 states have internal predecessors, (299), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:23:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 379 transitions. [2024-11-20 08:23:23,538 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 379 transitions. Word has length 135 [2024-11-20 08:23:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:23,538 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 379 transitions. [2024-11-20 08:23:23,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:23,539 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 379 transitions. [2024-11-20 08:23:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:23:23,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:23,540 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:23,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 08:23:23,540 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:23,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:23,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-11-20 08:23:23,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:23,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711893099] [2024-11-20 08:23:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,121 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:24,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:24,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711893099] [2024-11-20 08:23:24,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711893099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:24,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:24,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:23:24,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078906596] [2024-11-20 08:23:24,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:24,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:23:24,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:24,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:23:24,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:23:24,123 INFO L87 Difference]: Start difference. First operand 278 states and 379 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:24,358 INFO L93 Difference]: Finished difference Result 556 states and 755 transitions. [2024-11-20 08:23:24,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:23:24,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-20 08:23:24,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:24,360 INFO L225 Difference]: With dead ends: 556 [2024-11-20 08:23:24,360 INFO L226 Difference]: Without dead ends: 281 [2024-11-20 08:23:24,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:23:24,361 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 59 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:24,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 964 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:24,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-20 08:23:24,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2024-11-20 08:23:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 230 states have (on average 1.291304347826087) internal successors, (297), 231 states have internal predecessors, (297), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:23:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 377 transitions. [2024-11-20 08:23:24,375 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 377 transitions. Word has length 135 [2024-11-20 08:23:24,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:24,375 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 377 transitions. [2024-11-20 08:23:24,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 377 transitions. [2024-11-20 08:23:24,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:23:24,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:24,376 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:24,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 08:23:24,376 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:24,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:24,377 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-11-20 08:23:24,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:24,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238392972] [2024-11-20 08:23:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:24,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:24,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:24,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238392972] [2024-11-20 08:23:24,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238392972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:24,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:24,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:23:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979145805] [2024-11-20 08:23:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:24,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:23:24,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:24,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:23:24,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:23:24,978 INFO L87 Difference]: Start difference. First operand 279 states and 377 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:25,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:25,237 INFO L93 Difference]: Finished difference Result 561 states and 755 transitions. [2024-11-20 08:23:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:23:25,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-20 08:23:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:25,239 INFO L225 Difference]: With dead ends: 561 [2024-11-20 08:23:25,239 INFO L226 Difference]: Without dead ends: 285 [2024-11-20 08:23:25,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:23:25,240 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 62 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:25,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 777 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:25,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-20 08:23:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283. [2024-11-20 08:23:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 234 states have internal predecessors, (299), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:23:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 379 transitions. [2024-11-20 08:23:25,276 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 379 transitions. Word has length 135 [2024-11-20 08:23:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:25,277 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 379 transitions. [2024-11-20 08:23:25,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:25,277 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 379 transitions. [2024-11-20 08:23:25,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:23:25,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:25,278 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:25,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 08:23:25,278 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:25,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:25,279 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-11-20 08:23:25,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:25,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813213702] [2024-11-20 08:23:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:25,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:25,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:25,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813213702] [2024-11-20 08:23:25,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813213702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:25,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:25,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:23:25,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687327714] [2024-11-20 08:23:25,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:25,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:23:25,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:25,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:23:25,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:23:25,828 INFO L87 Difference]: Start difference. First operand 283 states and 379 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:26,181 INFO L93 Difference]: Finished difference Result 583 states and 776 transitions. [2024-11-20 08:23:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:23:26,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-20 08:23:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:26,184 INFO L225 Difference]: With dead ends: 583 [2024-11-20 08:23:26,184 INFO L226 Difference]: Without dead ends: 303 [2024-11-20 08:23:26,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:23:26,185 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 61 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:26,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1357 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:23:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-20 08:23:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 283. [2024-11-20 08:23:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 234 states have internal predecessors, (298), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:23:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 378 transitions. [2024-11-20 08:23:26,200 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 378 transitions. Word has length 135 [2024-11-20 08:23:26,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:26,201 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 378 transitions. [2024-11-20 08:23:26,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:26,201 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 378 transitions. [2024-11-20 08:23:26,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:23:26,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:26,203 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:26,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 08:23:26,203 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:26,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-11-20 08:23:26,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:26,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561307687] [2024-11-20 08:23:26,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:26,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:26,445 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:26,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:26,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561307687] [2024-11-20 08:23:26,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561307687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:26,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:26,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:26,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178563469] [2024-11-20 08:23:26,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:26,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:26,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:26,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:26,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:26,448 INFO L87 Difference]: Start difference. First operand 283 states and 378 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:26,566 INFO L93 Difference]: Finished difference Result 703 states and 937 transitions. [2024-11-20 08:23:26,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:26,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-20 08:23:26,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:26,573 INFO L225 Difference]: With dead ends: 703 [2024-11-20 08:23:26,573 INFO L226 Difference]: Without dead ends: 423 [2024-11-20 08:23:26,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:26,574 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:26,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 464 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:26,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-20 08:23:26,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 328. [2024-11-20 08:23:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 278 states have (on average 1.2661870503597121) internal successors, (352), 279 states have internal predecessors, (352), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:23:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 432 transitions. [2024-11-20 08:23:26,608 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 432 transitions. Word has length 135 [2024-11-20 08:23:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:26,608 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 432 transitions. [2024-11-20 08:23:26,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 432 transitions. [2024-11-20 08:23:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:23:26,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:26,609 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:26,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 08:23:26,609 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:26,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:26,610 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-11-20 08:23:26,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:26,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683553887] [2024-11-20 08:23:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:26,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:27,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:27,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683553887] [2024-11-20 08:23:27,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683553887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:27,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:27,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:23:27,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037407112] [2024-11-20 08:23:27,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:27,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:23:27,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:27,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:23:27,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:23:27,494 INFO L87 Difference]: Start difference. First operand 328 states and 432 transitions. Second operand has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:27,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:27,835 INFO L93 Difference]: Finished difference Result 863 states and 1130 transitions. [2024-11-20 08:23:27,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:23:27,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-20 08:23:27,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:27,838 INFO L225 Difference]: With dead ends: 863 [2024-11-20 08:23:27,838 INFO L226 Difference]: Without dead ends: 538 [2024-11-20 08:23:27,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:23:27,839 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 71 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:27,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 851 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:23:27,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-20 08:23:27,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 534. [2024-11-20 08:23:27,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 453 states have (on average 1.2538631346578366) internal successors, (568), 457 states have internal predecessors, (568), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 692 transitions. [2024-11-20 08:23:27,870 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 692 transitions. Word has length 135 [2024-11-20 08:23:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:27,870 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 692 transitions. [2024-11-20 08:23:27,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:27,871 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 692 transitions. [2024-11-20 08:23:27,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:23:27,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:27,872 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:27,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 08:23:27,872 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:27,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:27,872 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-11-20 08:23:27,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:27,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815403942] [2024-11-20 08:23:27,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:27,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:28,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:28,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815403942] [2024-11-20 08:23:28,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815403942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:28,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:28,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:23:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812184379] [2024-11-20 08:23:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:28,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:23:28,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:23:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:23:28,018 INFO L87 Difference]: Start difference. First operand 534 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:28,090 INFO L93 Difference]: Finished difference Result 1060 states and 1372 transitions. [2024-11-20 08:23:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:23:28,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-20 08:23:28,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:28,092 INFO L225 Difference]: With dead ends: 1060 [2024-11-20 08:23:28,092 INFO L226 Difference]: Without dead ends: 529 [2024-11-20 08:23:28,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:28,094 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 47 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:28,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 569 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:23:28,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-20 08:23:28,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 525. [2024-11-20 08:23:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 444 states have (on average 1.2454954954954955) internal successors, (553), 448 states have internal predecessors, (553), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 677 transitions. [2024-11-20 08:23:28,122 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 677 transitions. Word has length 135 [2024-11-20 08:23:28,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:28,123 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 677 transitions. [2024-11-20 08:23:28,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:28,123 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 677 transitions. [2024-11-20 08:23:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:28,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:28,124 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:28,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 08:23:28,125 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:28,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-11-20 08:23:28,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:28,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173663714] [2024-11-20 08:23:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:28,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:28,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:28,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173663714] [2024-11-20 08:23:28,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173663714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:28,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:28,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:23:28,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562634308] [2024-11-20 08:23:28,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:28,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:23:28,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:28,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:23:28,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:28,444 INFO L87 Difference]: Start difference. First operand 525 states and 677 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:28,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:28,689 INFO L93 Difference]: Finished difference Result 1459 states and 1871 transitions. [2024-11-20 08:23:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:23:28,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-20 08:23:28,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:28,694 INFO L225 Difference]: With dead ends: 1459 [2024-11-20 08:23:28,694 INFO L226 Difference]: Without dead ends: 937 [2024-11-20 08:23:28,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:23:28,696 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 61 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:28,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 514 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-20 08:23:28,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 675. [2024-11-20 08:23:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 594 states have (on average 1.2558922558922558) internal successors, (746), 598 states have internal predecessors, (746), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 870 transitions. [2024-11-20 08:23:28,744 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 870 transitions. Word has length 139 [2024-11-20 08:23:28,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:28,745 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 870 transitions. [2024-11-20 08:23:28,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:28,745 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 870 transitions. [2024-11-20 08:23:28,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:28,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:28,746 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:28,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 08:23:28,746 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:28,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:28,747 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-11-20 08:23:28,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:28,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084405127] [2024-11-20 08:23:28,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:28,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:29,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:29,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084405127] [2024-11-20 08:23:29,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084405127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:29,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:29,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:23:29,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915894417] [2024-11-20 08:23:29,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:29,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:23:29,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:29,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:23:29,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:23:29,497 INFO L87 Difference]: Start difference. First operand 675 states and 870 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:30,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:30,089 INFO L93 Difference]: Finished difference Result 1517 states and 1948 transitions. [2024-11-20 08:23:30,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:23:30,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-20 08:23:30,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:30,093 INFO L225 Difference]: With dead ends: 1517 [2024-11-20 08:23:30,093 INFO L226 Difference]: Without dead ends: 845 [2024-11-20 08:23:30,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-20 08:23:30,094 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 63 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:30,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1224 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:23:30,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-20 08:23:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 691. [2024-11-20 08:23:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 610 states have (on average 1.2491803278688525) internal successors, (762), 614 states have internal predecessors, (762), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 886 transitions. [2024-11-20 08:23:30,128 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 886 transitions. Word has length 139 [2024-11-20 08:23:30,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:30,128 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 886 transitions. [2024-11-20 08:23:30,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:30,129 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 886 transitions. [2024-11-20 08:23:30,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:30,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:30,130 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:30,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 08:23:30,130 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:30,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:30,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-11-20 08:23:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:30,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955051627] [2024-11-20 08:23:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:30,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:30,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955051627] [2024-11-20 08:23:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955051627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:30,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459601885] [2024-11-20 08:23:30,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:30,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:30,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:30,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:30,344 INFO L87 Difference]: Start difference. First operand 691 states and 886 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:30,441 INFO L93 Difference]: Finished difference Result 1494 states and 1917 transitions. [2024-11-20 08:23:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:30,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-20 08:23:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:30,445 INFO L225 Difference]: With dead ends: 1494 [2024-11-20 08:23:30,445 INFO L226 Difference]: Without dead ends: 806 [2024-11-20 08:23:30,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:30,448 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 103 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:30,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 459 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:23:30,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-20 08:23:30,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 719. [2024-11-20 08:23:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 638 states have (on average 1.249216300940439) internal successors, (797), 642 states have internal predecessors, (797), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 921 transitions. [2024-11-20 08:23:30,489 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 921 transitions. Word has length 139 [2024-11-20 08:23:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:30,489 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 921 transitions. [2024-11-20 08:23:30,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 921 transitions. [2024-11-20 08:23:30,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:30,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:30,491 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:30,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 08:23:30,491 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:30,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-11-20 08:23:30,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:30,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720139588] [2024-11-20 08:23:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:30,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:30,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:30,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720139588] [2024-11-20 08:23:30,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720139588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:30,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:30,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:30,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277445732] [2024-11-20 08:23:30,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:30,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:30,701 INFO L87 Difference]: Start difference. First operand 719 states and 921 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:30,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:30,778 INFO L93 Difference]: Finished difference Result 1456 states and 1866 transitions. [2024-11-20 08:23:30,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:30,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-20 08:23:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:30,782 INFO L225 Difference]: With dead ends: 1456 [2024-11-20 08:23:30,782 INFO L226 Difference]: Without dead ends: 740 [2024-11-20 08:23:30,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:30,784 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:30,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:23:30,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-20 08:23:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 728. [2024-11-20 08:23:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 647 states have (on average 1.2457496136012365) internal successors, (806), 651 states have internal predecessors, (806), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 930 transitions. [2024-11-20 08:23:30,828 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 930 transitions. Word has length 139 [2024-11-20 08:23:30,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:30,828 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 930 transitions. [2024-11-20 08:23:30,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:30,829 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 930 transitions. [2024-11-20 08:23:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:30,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:30,830 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:30,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 08:23:30,830 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:30,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:30,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-11-20 08:23:30,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:30,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293251464] [2024-11-20 08:23:30,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:30,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:31,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293251464] [2024-11-20 08:23:31,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293251464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:31,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:31,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:23:31,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81146496] [2024-11-20 08:23:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:31,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:23:31,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:23:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:23:31,603 INFO L87 Difference]: Start difference. First operand 728 states and 930 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:32,119 INFO L93 Difference]: Finished difference Result 2038 states and 2582 transitions. [2024-11-20 08:23:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:23:32,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-20 08:23:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:32,124 INFO L225 Difference]: With dead ends: 2038 [2024-11-20 08:23:32,124 INFO L226 Difference]: Without dead ends: 1313 [2024-11-20 08:23:32,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:23:32,126 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 326 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:32,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1174 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:23:32,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-11-20 08:23:32,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 823. [2024-11-20 08:23:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 742 states have (on average 1.2547169811320755) internal successors, (931), 746 states have internal predecessors, (931), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:32,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1055 transitions. [2024-11-20 08:23:32,167 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1055 transitions. Word has length 139 [2024-11-20 08:23:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:32,167 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1055 transitions. [2024-11-20 08:23:32,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1055 transitions. [2024-11-20 08:23:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:32,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:32,169 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:32,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 08:23:32,169 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:32,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:32,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1811587497, now seen corresponding path program 1 times [2024-11-20 08:23:32,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:32,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559885771] [2024-11-20 08:23:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:32,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:32,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:32,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559885771] [2024-11-20 08:23:32,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559885771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:32,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:32,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:32,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136534617] [2024-11-20 08:23:32,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:32,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:32,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:32,457 INFO L87 Difference]: Start difference. First operand 823 states and 1055 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:32,630 INFO L93 Difference]: Finished difference Result 1865 states and 2381 transitions. [2024-11-20 08:23:32,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:32,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-20 08:23:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:32,634 INFO L225 Difference]: With dead ends: 1865 [2024-11-20 08:23:32,634 INFO L226 Difference]: Without dead ends: 1044 [2024-11-20 08:23:32,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:32,636 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 59 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:32,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 581 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:32,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-20 08:23:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 910. [2024-11-20 08:23:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 829 states have (on average 1.253317249698432) internal successors, (1039), 833 states have internal predecessors, (1039), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1163 transitions. [2024-11-20 08:23:32,672 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1163 transitions. Word has length 139 [2024-11-20 08:23:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:32,672 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1163 transitions. [2024-11-20 08:23:32,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1163 transitions. [2024-11-20 08:23:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:32,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:32,674 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:32,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 08:23:32,674 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:32,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-11-20 08:23:32,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:32,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712861876] [2024-11-20 08:23:32,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:32,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-20 08:23:32,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712861876] [2024-11-20 08:23:32,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712861876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:23:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571656443] [2024-11-20 08:23:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:32,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:23:32,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:23:32,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 08:23:32,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 08:23:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:33,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 08:23:33,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:23:33,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-20 08:23:33,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-20 08:23:33,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-20 08:23:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 268 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-20 08:23:33,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 08:23:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-20 08:23:33,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571656443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 08:23:33,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 08:23:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-20 08:23:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277725638] [2024-11-20 08:23:33,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 08:23:33,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 08:23:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 08:23:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:23:33,502 INFO L87 Difference]: Start difference. First operand 910 states and 1163 transitions. Second operand has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-20 08:23:33,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:33,784 INFO L93 Difference]: Finished difference Result 1669 states and 2117 transitions. [2024-11-20 08:23:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:23:33,785 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) Word has length 139 [2024-11-20 08:23:33,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:33,787 INFO L225 Difference]: With dead ends: 1669 [2024-11-20 08:23:33,788 INFO L226 Difference]: Without dead ends: 762 [2024-11-20 08:23:33,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:23:33,789 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 208 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:33,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 371 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-20 08:23:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 734. [2024-11-20 08:23:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 649 states have (on average 1.234206471494607) internal successors, (801), 653 states have internal predecessors, (801), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 925 transitions. [2024-11-20 08:23:33,822 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 925 transitions. Word has length 139 [2024-11-20 08:23:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:33,822 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 925 transitions. [2024-11-20 08:23:33,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-20 08:23:33,822 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 925 transitions. [2024-11-20 08:23:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:33,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:33,824 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:33,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 08:23:34,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-20 08:23:34,027 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:34,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:34,028 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-11-20 08:23:34,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:34,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802648385] [2024-11-20 08:23:34,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:34,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:34,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:34,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802648385] [2024-11-20 08:23:34,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802648385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:34,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:34,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:23:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305972913] [2024-11-20 08:23:34,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:34,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:23:34,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:23:34,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:23:34,787 INFO L87 Difference]: Start difference. First operand 734 states and 925 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:35,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:35,619 INFO L93 Difference]: Finished difference Result 1791 states and 2242 transitions. [2024-11-20 08:23:35,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:23:35,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-20 08:23:35,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:35,623 INFO L225 Difference]: With dead ends: 1791 [2024-11-20 08:23:35,624 INFO L226 Difference]: Without dead ends: 1060 [2024-11-20 08:23:35,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:23:35,625 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 313 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:35,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 583 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 08:23:35,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2024-11-20 08:23:35,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 816. [2024-11-20 08:23:35,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 719 states have (on average 1.2308762169680112) internal successors, (885), 725 states have internal predecessors, (885), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 08:23:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1025 transitions. [2024-11-20 08:23:35,697 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1025 transitions. Word has length 139 [2024-11-20 08:23:35,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:35,697 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1025 transitions. [2024-11-20 08:23:35,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:35,697 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1025 transitions. [2024-11-20 08:23:35,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:23:35,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:35,699 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:35,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 08:23:35,699 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:35,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:35,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-11-20 08:23:35,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:35,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085068409] [2024-11-20 08:23:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:35,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:35,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:35,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085068409] [2024-11-20 08:23:35,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085068409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:35,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:35,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:23:35,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364764628] [2024-11-20 08:23:35,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:35,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:23:35,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:35,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:23:35,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:35,976 INFO L87 Difference]: Start difference. First operand 816 states and 1025 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:36,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:36,179 INFO L93 Difference]: Finished difference Result 1798 states and 2254 transitions. [2024-11-20 08:23:36,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:23:36,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-20 08:23:36,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:36,183 INFO L225 Difference]: With dead ends: 1798 [2024-11-20 08:23:36,183 INFO L226 Difference]: Without dead ends: 985 [2024-11-20 08:23:36,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:23:36,185 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 55 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:36,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 847 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:36,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-20 08:23:36,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 856. [2024-11-20 08:23:36,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 759 states have (on average 1.2371541501976284) internal successors, (939), 765 states have internal predecessors, (939), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 08:23:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1079 transitions. [2024-11-20 08:23:36,232 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1079 transitions. Word has length 139 [2024-11-20 08:23:36,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:36,233 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1079 transitions. [2024-11-20 08:23:36,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1079 transitions. [2024-11-20 08:23:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:23:36,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:36,234 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:36,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 08:23:36,234 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:36,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:36,235 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-11-20 08:23:36,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:36,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365612615] [2024-11-20 08:23:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:36,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:36,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:36,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365612615] [2024-11-20 08:23:36,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365612615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:36,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:36,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:23:36,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66432065] [2024-11-20 08:23:36,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:36,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:23:36,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:23:36,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:23:36,751 INFO L87 Difference]: Start difference. First operand 856 states and 1079 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:37,015 INFO L93 Difference]: Finished difference Result 1772 states and 2225 transitions. [2024-11-20 08:23:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:23:37,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-20 08:23:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:37,022 INFO L225 Difference]: With dead ends: 1772 [2024-11-20 08:23:37,022 INFO L226 Difference]: Without dead ends: 919 [2024-11-20 08:23:37,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:37,024 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 47 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:37,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 421 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-20 08:23:37,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 787. [2024-11-20 08:23:37,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 700 states have (on average 1.2314285714285715) internal successors, (862), 704 states have internal predecessors, (862), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 08:23:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 986 transitions. [2024-11-20 08:23:37,071 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 986 transitions. Word has length 140 [2024-11-20 08:23:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:37,071 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 986 transitions. [2024-11-20 08:23:37,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:37,074 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 986 transitions. [2024-11-20 08:23:37,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:23:37,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:37,075 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:37,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 08:23:37,075 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:37,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:37,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-11-20 08:23:37,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:37,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431998299] [2024-11-20 08:23:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:37,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:37,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:37,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431998299] [2024-11-20 08:23:37,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431998299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:37,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:37,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:23:37,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462174410] [2024-11-20 08:23:37,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:37,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:23:37,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:37,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:23:37,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:23:37,438 INFO L87 Difference]: Start difference. First operand 787 states and 986 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:37,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:37,644 INFO L93 Difference]: Finished difference Result 1263 states and 1541 transitions. [2024-11-20 08:23:37,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:23:37,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-20 08:23:37,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:37,648 INFO L225 Difference]: With dead ends: 1263 [2024-11-20 08:23:37,648 INFO L226 Difference]: Without dead ends: 1261 [2024-11-20 08:23:37,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:23:37,649 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 68 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:37,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1025 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-20 08:23:37,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1257. [2024-11-20 08:23:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1094 states have (on average 1.1910420475319927) internal successors, (1303), 1104 states have internal predecessors, (1303), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 08:23:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1531 transitions. [2024-11-20 08:23:37,725 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1531 transitions. Word has length 141 [2024-11-20 08:23:37,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:37,726 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1531 transitions. [2024-11-20 08:23:37,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:37,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1531 transitions. [2024-11-20 08:23:37,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:23:37,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:37,727 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:37,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 08:23:37,728 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:37,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:37,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-11-20 08:23:37,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:37,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728115243] [2024-11-20 08:23:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:37,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:37,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:37,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728115243] [2024-11-20 08:23:37,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728115243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:37,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:37,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:37,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899324520] [2024-11-20 08:23:37,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:37,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:37,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:37,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:37,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:37,936 INFO L87 Difference]: Start difference. First operand 1257 states and 1531 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:38,090 INFO L93 Difference]: Finished difference Result 2767 states and 3367 transitions. [2024-11-20 08:23:38,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:38,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-20 08:23:38,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:38,098 INFO L225 Difference]: With dead ends: 2767 [2024-11-20 08:23:38,098 INFO L226 Difference]: Without dead ends: 1513 [2024-11-20 08:23:38,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:38,100 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 88 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:38,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 597 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:38,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-20 08:23:38,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1403. [2024-11-20 08:23:38,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1240 states have (on average 1.1870967741935483) internal successors, (1472), 1250 states have internal predecessors, (1472), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 08:23:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1700 transitions. [2024-11-20 08:23:38,188 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1700 transitions. Word has length 141 [2024-11-20 08:23:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:38,189 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1700 transitions. [2024-11-20 08:23:38,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:38,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1700 transitions. [2024-11-20 08:23:38,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 08:23:38,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:38,193 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:38,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 08:23:38,193 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:38,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:38,193 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-11-20 08:23:38,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:38,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672450623] [2024-11-20 08:23:38,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:38,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:38,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:38,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672450623] [2024-11-20 08:23:38,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672450623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:38,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:38,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:38,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704814204] [2024-11-20 08:23:38,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:38,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:38,736 INFO L87 Difference]: Start difference. First operand 1403 states and 1700 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:39,035 INFO L93 Difference]: Finished difference Result 2996 states and 3604 transitions. [2024-11-20 08:23:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:39,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-20 08:23:39,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:39,041 INFO L225 Difference]: With dead ends: 2996 [2024-11-20 08:23:39,041 INFO L226 Difference]: Without dead ends: 1596 [2024-11-20 08:23:39,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:39,043 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 48 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:39,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 423 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:39,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-20 08:23:39,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1322. [2024-11-20 08:23:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1159 states have (on average 1.1544434857635892) internal successors, (1338), 1169 states have internal predecessors, (1338), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 08:23:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1566 transitions. [2024-11-20 08:23:39,192 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1566 transitions. Word has length 142 [2024-11-20 08:23:39,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:39,192 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1566 transitions. [2024-11-20 08:23:39,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:23:39,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1566 transitions. [2024-11-20 08:23:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 08:23:39,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:39,195 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:39,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 08:23:39,195 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:39,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:39,195 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-11-20 08:23:39,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:39,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512480289] [2024-11-20 08:23:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:39,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,446 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:39,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:39,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512480289] [2024-11-20 08:23:39,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512480289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:39,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:39,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:39,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089340010] [2024-11-20 08:23:39,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:39,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:39,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:39,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:39,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:39,448 INFO L87 Difference]: Start difference. First operand 1322 states and 1566 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:39,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:39,568 INFO L93 Difference]: Finished difference Result 2304 states and 2745 transitions. [2024-11-20 08:23:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:39,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-20 08:23:39,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:39,572 INFO L225 Difference]: With dead ends: 2304 [2024-11-20 08:23:39,572 INFO L226 Difference]: Without dead ends: 941 [2024-11-20 08:23:39,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:39,575 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:39,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 455 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:23:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-20 08:23:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2024-11-20 08:23:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 796 states have (on average 1.1457286432160805) internal successors, (912), 804 states have internal predecessors, (912), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 08:23:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1112 transitions. [2024-11-20 08:23:39,645 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1112 transitions. Word has length 142 [2024-11-20 08:23:39,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:39,645 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1112 transitions. [2024-11-20 08:23:39,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:39,645 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1112 transitions. [2024-11-20 08:23:39,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 08:23:39,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:39,646 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:39,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 08:23:39,647 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:39,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-11-20 08:23:39,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:39,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760707700] [2024-11-20 08:23:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:39,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:39,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:39,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760707700] [2024-11-20 08:23:39,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760707700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:39,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:39,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:39,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085348645] [2024-11-20 08:23:39,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:39,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:39,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:39,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:39,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:39,904 INFO L87 Difference]: Start difference. First operand 939 states and 1112 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:40,068 INFO L93 Difference]: Finished difference Result 1773 states and 2095 transitions. [2024-11-20 08:23:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:40,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-20 08:23:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:40,072 INFO L225 Difference]: With dead ends: 1773 [2024-11-20 08:23:40,073 INFO L226 Difference]: Without dead ends: 870 [2024-11-20 08:23:40,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:40,074 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 126 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:40,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 578 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:40,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-20 08:23:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 864. [2024-11-20 08:23:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 721 states have (on average 1.130374479889043) internal successors, (815), 729 states have internal predecessors, (815), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 08:23:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1015 transitions. [2024-11-20 08:23:40,199 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1015 transitions. Word has length 143 [2024-11-20 08:23:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:40,199 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1015 transitions. [2024-11-20 08:23:40,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:40,199 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1015 transitions. [2024-11-20 08:23:40,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:23:40,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:40,201 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:40,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 08:23:40,202 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:40,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-11-20 08:23:40,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:40,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021719657] [2024-11-20 08:23:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:40,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:40,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021719657] [2024-11-20 08:23:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021719657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:40,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:40,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:23:40,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327308255] [2024-11-20 08:23:40,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:40,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:23:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:40,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:23:40,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:23:40,488 INFO L87 Difference]: Start difference. First operand 864 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:40,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:40,621 INFO L93 Difference]: Finished difference Result 1650 states and 1930 transitions. [2024-11-20 08:23:40,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:23:40,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-20 08:23:40,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:40,624 INFO L225 Difference]: With dead ends: 1650 [2024-11-20 08:23:40,624 INFO L226 Difference]: Without dead ends: 822 [2024-11-20 08:23:40,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:23:40,626 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 65 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:40,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 444 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:23:40,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-20 08:23:40,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2024-11-20 08:23:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 679 states have (on average 1.1030927835051547) internal successors, (749), 687 states have internal predecessors, (749), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-20 08:23:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 949 transitions. [2024-11-20 08:23:40,693 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 949 transitions. Word has length 144 [2024-11-20 08:23:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:40,694 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 949 transitions. [2024-11-20 08:23:40,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:23:40,694 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 949 transitions. [2024-11-20 08:23:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:23:40,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:40,697 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:40,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 08:23:40,697 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:40,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:40,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-11-20 08:23:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:40,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596493646] [2024-11-20 08:23:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:40,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:23:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:23:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:23:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:23:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:23:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:23:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:23:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:23:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:23:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:23:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:23:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:23:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:23:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:23:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:23:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:23:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:23:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:23:41,485 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:23:41,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:23:41,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596493646] [2024-11-20 08:23:41,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596493646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:23:41,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:23:41,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:23:41,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218642600] [2024-11-20 08:23:41,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:23:41,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:23:41,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:23:41,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:23:41,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:23:41,488 INFO L87 Difference]: Start difference. First operand 822 states and 949 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:41,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:23:41,911 INFO L93 Difference]: Finished difference Result 1067 states and 1233 transitions. [2024-11-20 08:23:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:23:41,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-20 08:23:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:23:41,915 INFO L225 Difference]: With dead ends: 1067 [2024-11-20 08:23:41,915 INFO L226 Difference]: Without dead ends: 1065 [2024-11-20 08:23:41,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:23:41,916 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 66 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:23:41,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1420 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:23:41,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-20 08:23:42,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1061. [2024-11-20 08:23:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 874 states have (on average 1.105263157894737) internal successors, (966), 885 states have internal predecessors, (966), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-20 08:23:42,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1226 transitions. [2024-11-20 08:23:42,017 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1226 transitions. Word has length 144 [2024-11-20 08:23:42,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:23:42,017 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1226 transitions. [2024-11-20 08:23:42,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-20 08:23:42,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1226 transitions. [2024-11-20 08:23:42,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:23:42,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:23:42,026 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:23:42,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 08:23:42,027 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:23:42,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:23:42,027 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-11-20 08:23:42,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:23:42,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707726046] [2024-11-20 08:23:42,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:23:42,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:23:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat