./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.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 b03e5164bce3a85426688c5c2210a00154d48f59702228593c435153664697b2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 07:15:26,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 07:15:26,807 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 07:15:26,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 07:15:26,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 07:15:26,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 07:15:26,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 07:15:26,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 07:15:26,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 07:15:26,850 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 07:15:26,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 07:15:26,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 07:15:26,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 07:15:26,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 07:15:26,856 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 07:15:26,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 07:15:26,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 07:15:26,857 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 07:15:26,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 07:15:26,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 07:15:26,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 07:15:26,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 07:15:26,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 07:15:26,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 07:15:26,860 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 07:15:26,861 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 07:15:26,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 07:15:26,861 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 07:15:26,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 07:15:26,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 07:15:26,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 07:15:26,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 07:15:26,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:15:26,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 07:15:26,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 07:15:26,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 07:15:26,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 07:15:26,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 07:15:26,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 07:15:26,865 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 07:15:26,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 07:15:26,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 07:15:26,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b03e5164bce3a85426688c5c2210a00154d48f59702228593c435153664697b2 [2024-11-12 07:15:27,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 07:15:27,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 07:15:27,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 07:15:27,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 07:15:27,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 07:15:27,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.i [2024-11-12 07:15:28,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 07:15:28,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 07:15:28,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.i [2024-11-12 07:15:28,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d86f3884/adf8ee02e53744b39be5a5d8e07eea40/FLAGc59e58320 [2024-11-12 07:15:29,149 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d86f3884/adf8ee02e53744b39be5a5d8e07eea40 [2024-11-12 07:15:29,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 07:15:29,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 07:15:29,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 07:15:29,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 07:15:29,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 07:15:29,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b86923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29, skipping insertion in model container [2024-11-12 07:15:29,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 07:15:29,373 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-90.i[916,929] [2024-11-12 07:15:29,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:15:29,468 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 07:15:29,481 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-90.i[916,929] [2024-11-12 07:15:29,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:15:29,548 INFO L204 MainTranslator]: Completed translation [2024-11-12 07:15:29,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29 WrapperNode [2024-11-12 07:15:29,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 07:15:29,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 07:15:29,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 07:15:29,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 07:15:29,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,624 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 469 [2024-11-12 07:15:29,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 07:15:29,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 07:15:29,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 07:15:29,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 07:15:29,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,670 INFO L175 MemorySlicer]: Split 130 memory accesses to 5 slices as follows [2, 34, 4, 55, 35]. 42 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 1, 6, 3]. The 19 writes are split as follows [0, 6, 1, 6, 6]. [2024-11-12 07:15:29,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 07:15:29,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 07:15:29,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 07:15:29,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 07:15:29,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (1/1) ... [2024-11-12 07:15:29,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:15:29,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:15:29,751 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) [2024-11-12 07:15:29,760 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 [2024-11-12 07:15:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 07:15:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 07:15:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 07:15:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 07:15:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 07:15:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 07:15:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 07:15:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 07:15:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 07:15:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 07:15:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 07:15:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 07:15:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 07:15:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 07:15:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 07:15:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 07:15:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 07:15:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 07:15:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 07:15:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 07:15:29,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 07:15:29,980 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 07:15:30,495 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-11-12 07:15:30,495 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 07:15:30,518 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 07:15:30,519 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 07:15:30,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:15:30 BoogieIcfgContainer [2024-11-12 07:15:30,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 07:15:30,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 07:15:30,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 07:15:30,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 07:15:30,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:15:29" (1/3) ... [2024-11-12 07:15:30,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df16e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:15:30, skipping insertion in model container [2024-11-12 07:15:30,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:15:29" (2/3) ... [2024-11-12 07:15:30,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df16e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:15:30, skipping insertion in model container [2024-11-12 07:15:30,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:15:30" (3/3) ... [2024-11-12 07:15:30,530 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-90.i [2024-11-12 07:15:30,543 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 07:15:30,543 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 07:15:30,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 07:15:30,605 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;@2058db90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 07:15:30,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 07:15:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 88 states have (on average 1.375) internal successors, (121), 89 states have internal predecessors, (121), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 07:15:30,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:15:30,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:30,624 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:30,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:30,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:30,630 INFO L85 PathProgramCache]: Analyzing trace with hash -803015530, now seen corresponding path program 1 times [2024-11-12 07:15:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:30,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653121039] [2024-11-12 07:15:30,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:30,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:30,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:30,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:30,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:30,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:30,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:31,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:31,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653121039] [2024-11-12 07:15:31,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653121039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:31,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:31,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 07:15:31,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122827561] [2024-11-12 07:15:31,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:31,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 07:15:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:31,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 07:15:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:15:31,120 INFO L87 Difference]: Start difference. First operand has 111 states, 88 states have (on average 1.375) internal successors, (121), 89 states have internal predecessors, (121), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:15:31,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:31,160 INFO L93 Difference]: Finished difference Result 215 states and 336 transitions. [2024-11-12 07:15:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 07:15:31,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2024-11-12 07:15:31,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:31,169 INFO L225 Difference]: With dead ends: 215 [2024-11-12 07:15:31,169 INFO L226 Difference]: Without dead ends: 107 [2024-11-12 07:15:31,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:15:31,179 INFO L435 NwaCegarLoop]: 154 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, 154 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 [2024-11-12 07:15:31,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:15:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-12 07:15:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-12 07:15:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 85 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 07:15:31,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2024-11-12 07:15:31,244 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 153 [2024-11-12 07:15:31,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:31,245 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2024-11-12 07:15:31,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:15:31,246 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2024-11-12 07:15:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:15:31,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:31,251 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:31,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 07:15:31,252 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:31,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:31,253 INFO L85 PathProgramCache]: Analyzing trace with hash 82058350, now seen corresponding path program 1 times [2024-11-12 07:15:31,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:31,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015981879] [2024-11-12 07:15:31,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:31,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:31,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:31,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015981879] [2024-11-12 07:15:31,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015981879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:31,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:31,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:15:31,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886899787] [2024-11-12 07:15:31,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:31,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:15:31,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:15:31,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:15:31,835 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:31,887 INFO L93 Difference]: Finished difference Result 213 states and 308 transitions. [2024-11-12 07:15:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:15:31,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-11-12 07:15:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:31,890 INFO L225 Difference]: With dead ends: 213 [2024-11-12 07:15:31,890 INFO L226 Difference]: Without dead ends: 109 [2024-11-12 07:15:31,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:15:31,892 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:31,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 445 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:15:31,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-12 07:15:31,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-12 07:15:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3333333333333333) internal successors, (116), 87 states have internal predecessors, (116), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 07:15:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2024-11-12 07:15:31,917 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 153 [2024-11-12 07:15:31,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:31,919 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2024-11-12 07:15:31,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2024-11-12 07:15:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:15:31,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:31,922 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:31,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 07:15:31,922 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:31,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:31,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1318528233, now seen corresponding path program 1 times [2024-11-12 07:15:31,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:31,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710211059] [2024-11-12 07:15:31,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:31,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:32,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:32,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710211059] [2024-11-12 07:15:32,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710211059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:32,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:32,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:15:32,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432727367] [2024-11-12 07:15:32,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:32,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:15:32,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:32,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:15:32,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:15:32,425 INFO L87 Difference]: Start difference. First operand 109 states and 156 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:32,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:32,586 INFO L93 Difference]: Finished difference Result 323 states and 464 transitions. [2024-11-12 07:15:32,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:15:32,588 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-11-12 07:15:32,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:32,591 INFO L225 Difference]: With dead ends: 323 [2024-11-12 07:15:32,591 INFO L226 Difference]: Without dead ends: 217 [2024-11-12 07:15:32,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:15:32,596 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 142 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:32,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 932 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:15:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-12 07:15:32,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 114. [2024-11-12 07:15:32,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.326086956521739) internal successors, (122), 92 states have internal predecessors, (122), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 07:15:32,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2024-11-12 07:15:32,624 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 155 [2024-11-12 07:15:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:32,625 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2024-11-12 07:15:32,625 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2024-11-12 07:15:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:15:32,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:32,627 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:32,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 07:15:32,631 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:32,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:32,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1537382951, now seen corresponding path program 1 times [2024-11-12 07:15:32,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:32,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911824254] [2024-11-12 07:15:32,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:32,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:33,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:33,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911824254] [2024-11-12 07:15:33,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911824254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:33,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:33,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:15:33,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269127442] [2024-11-12 07:15:33,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:33,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:15:33,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:33,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:15:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:15:33,261 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:33,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:33,625 INFO L93 Difference]: Finished difference Result 322 states and 460 transitions. [2024-11-12 07:15:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:15:33,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-11-12 07:15:33,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:33,628 INFO L225 Difference]: With dead ends: 322 [2024-11-12 07:15:33,631 INFO L226 Difference]: Without dead ends: 211 [2024-11-12 07:15:33,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:15:33,633 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 275 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:33,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 425 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:15:33,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-12 07:15:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 116. [2024-11-12 07:15:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 94 states have internal predecessors, (124), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 07:15:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 164 transitions. [2024-11-12 07:15:33,658 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 164 transitions. Word has length 155 [2024-11-12 07:15:33,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:33,659 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 164 transitions. [2024-11-12 07:15:33,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:33,659 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 164 transitions. [2024-11-12 07:15:33,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-12 07:15:33,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:33,662 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:33,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 07:15:33,663 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:33,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash -963382957, now seen corresponding path program 1 times [2024-11-12 07:15:33,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:33,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745699733] [2024-11-12 07:15:33,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:33,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:35,226 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:35,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:35,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745699733] [2024-11-12 07:15:35,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745699733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:35,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:35,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 07:15:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639096735] [2024-11-12 07:15:35,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:35,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 07:15:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 07:15:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:15:35,231 INFO L87 Difference]: Start difference. First operand 116 states and 164 transitions. Second operand has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-12 07:15:35,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:35,834 INFO L93 Difference]: Finished difference Result 332 states and 466 transitions. [2024-11-12 07:15:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:15:35,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2024-11-12 07:15:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:35,837 INFO L225 Difference]: With dead ends: 332 [2024-11-12 07:15:35,838 INFO L226 Difference]: Without dead ends: 219 [2024-11-12 07:15:35,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:15:35,840 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 242 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:35,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 930 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 07:15:35,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-12 07:15:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 152. [2024-11-12 07:15:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 129 states have (on average 1.3255813953488371) internal successors, (171), 129 states have internal predecessors, (171), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 07:15:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 211 transitions. [2024-11-12 07:15:35,898 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 211 transitions. Word has length 156 [2024-11-12 07:15:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:35,902 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 211 transitions. [2024-11-12 07:15:35,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-12 07:15:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 211 transitions. [2024-11-12 07:15:35,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:15:35,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:35,905 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:35,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 07:15:35,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:35,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:35,906 INFO L85 PathProgramCache]: Analyzing trace with hash -842790620, now seen corresponding path program 1 times [2024-11-12 07:15:35,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:35,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064372196] [2024-11-12 07:15:35,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:35,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-12 07:15:36,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:36,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064372196] [2024-11-12 07:15:36,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064372196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:15:36,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774218436] [2024-11-12 07:15:36,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:36,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:15:36,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:15:36,571 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) [2024-11-12 07:15:36,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 07:15:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:36,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-12 07:15:36,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:15:36,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-12 07:15:36,891 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 33 treesize of output 17 [2024-11-12 07:15:36,952 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 33 treesize of output 17 [2024-11-12 07:15:37,216 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 43 treesize of output 25 [2024-11-12 07:15:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 159 proven. 51 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-11-12 07:15:37,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:15:37,621 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-12 07:15:37,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774218436] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 07:15:37,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 07:15:37,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-12 07:15:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024166220] [2024-11-12 07:15:37,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 07:15:37,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 07:15:37,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:37,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 07:15:37,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:15:37,624 INFO L87 Difference]: Start difference. First operand 152 states and 211 transitions. Second operand has 11 states, 8 states have (on average 8.875) internal successors, (71), 11 states have internal predecessors, (71), 5 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-12 07:15:37,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:37,932 INFO L93 Difference]: Finished difference Result 299 states and 414 transitions. [2024-11-12 07:15:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 07:15:37,933 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 8.875) internal successors, (71), 11 states have internal predecessors, (71), 5 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 5 states have call successors, (39) Word has length 157 [2024-11-12 07:15:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:37,935 INFO L225 Difference]: With dead ends: 299 [2024-11-12 07:15:37,935 INFO L226 Difference]: Without dead ends: 150 [2024-11-12 07:15:37,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 346 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-12 07:15:37,939 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 323 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:37,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 478 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:15:37,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-12 07:15:37,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2024-11-12 07:15:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 122 states have (on average 1.3114754098360655) internal successors, (160), 122 states have internal predecessors, (160), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 07:15:37,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2024-11-12 07:15:37,971 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 157 [2024-11-12 07:15:37,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:37,972 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2024-11-12 07:15:37,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 8.875) internal successors, (71), 11 states have internal predecessors, (71), 5 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-12 07:15:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2024-11-12 07:15:37,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:15:37,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:37,976 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:37,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 07:15:38,176 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,SelfDestructingSolverStorable5 [2024-11-12 07:15:38,177 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:38,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:38,178 INFO L85 PathProgramCache]: Analyzing trace with hash -976804126, now seen corresponding path program 1 times [2024-11-12 07:15:38,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:38,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237161354] [2024-11-12 07:15:38,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:38,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-12 07:15:39,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:39,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237161354] [2024-11-12 07:15:39,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237161354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:15:39,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110099540] [2024-11-12 07:15:39,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:39,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:15:39,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:15:39,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:15:39,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 07:15:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:39,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-12 07:15:39,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:15:39,379 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 9 treesize of output 5 [2024-11-12 07:15:39,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-12 07:15:39,689 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 27 treesize of output 15 [2024-11-12 07:15:39,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:15:39,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 69 [2024-11-12 07:15:39,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:15:39,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 47 [2024-11-12 07:15:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-12 07:15:40,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:15:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:40,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110099540] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 07:15:40,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-12 07:15:40,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 14] total 26 [2024-11-12 07:15:40,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680062277] [2024-11-12 07:15:40,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:40,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:15:40,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:40,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:15:40,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2024-11-12 07:15:40,424 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:40,954 INFO L93 Difference]: Finished difference Result 383 states and 524 transitions. [2024-11-12 07:15:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:15:40,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-12 07:15:40,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:40,956 INFO L225 Difference]: With dead ends: 383 [2024-11-12 07:15:40,956 INFO L226 Difference]: Without dead ends: 240 [2024-11-12 07:15:40,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2024-11-12 07:15:40,958 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 95 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:40,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1185 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:15:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-12 07:15:40,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 233. [2024-11-12 07:15:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 196 states have internal predecessors, (255), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:15:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 319 transitions. [2024-11-12 07:15:41,003 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 319 transitions. Word has length 157 [2024-11-12 07:15:41,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:41,004 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 319 transitions. [2024-11-12 07:15:41,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:41,004 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 319 transitions. [2024-11-12 07:15:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:15:41,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:41,006 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:41,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 07:15:41,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-12 07:15:41,210 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:41,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:41,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1987921376, now seen corresponding path program 1 times [2024-11-12 07:15:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:41,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650566107] [2024-11-12 07:15:41,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:41,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:41,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:42,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:42,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650566107] [2024-11-12 07:15:42,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650566107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:42,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:42,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:15:42,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705162504] [2024-11-12 07:15:42,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:42,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:15:42,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:42,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:15:42,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:15:42,015 INFO L87 Difference]: Start difference. First operand 233 states and 319 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:15:42,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:42,304 INFO L93 Difference]: Finished difference Result 493 states and 669 transitions. [2024-11-12 07:15:42,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:15:42,305 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2024-11-12 07:15:42,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:42,309 INFO L225 Difference]: With dead ends: 493 [2024-11-12 07:15:42,309 INFO L226 Difference]: Without dead ends: 263 [2024-11-12 07:15:42,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:15:42,312 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 85 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:42,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 745 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:15:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-12 07:15:42,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 260. [2024-11-12 07:15:42,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 209 states have (on average 1.2679425837320575) internal successors, (265), 211 states have internal predecessors, (265), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 07:15:42,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 349 transitions. [2024-11-12 07:15:42,389 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 349 transitions. Word has length 157 [2024-11-12 07:15:42,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:42,390 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 349 transitions. [2024-11-12 07:15:42,390 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:15:42,391 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 349 transitions. [2024-11-12 07:15:42,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:15:42,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:42,393 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:42,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 07:15:42,393 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:42,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:42,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1324018464, now seen corresponding path program 1 times [2024-11-12 07:15:42,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:42,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974981341] [2024-11-12 07:15:42,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:42,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:43,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:43,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974981341] [2024-11-12 07:15:43,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974981341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:43,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:43,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 07:15:43,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727405178] [2024-11-12 07:15:43,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:43,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 07:15:43,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:43,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 07:15:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:15:43,240 INFO L87 Difference]: Start difference. First operand 260 states and 349 transitions. Second operand has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-12 07:15:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:43,550 INFO L93 Difference]: Finished difference Result 558 states and 751 transitions. [2024-11-12 07:15:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:15:43,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2024-11-12 07:15:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:43,553 INFO L225 Difference]: With dead ends: 558 [2024-11-12 07:15:43,553 INFO L226 Difference]: Without dead ends: 330 [2024-11-12 07:15:43,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:15:43,557 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 84 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:43,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 948 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:15:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-12 07:15:43,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 298. [2024-11-12 07:15:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 247 states have (on average 1.2834008097165992) internal successors, (317), 249 states have internal predecessors, (317), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 07:15:43,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 401 transitions. [2024-11-12 07:15:43,610 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 401 transitions. Word has length 157 [2024-11-12 07:15:43,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:43,610 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 401 transitions. [2024-11-12 07:15:43,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-12 07:15:43,611 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 401 transitions. [2024-11-12 07:15:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:15:43,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:43,613 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:43,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 07:15:43,613 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:43,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash 312901214, now seen corresponding path program 1 times [2024-11-12 07:15:43,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:43,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973118414] [2024-11-12 07:15:43,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:43,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-12 07:15:44,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:44,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973118414] [2024-11-12 07:15:44,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973118414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:15:44,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931864263] [2024-11-12 07:15:44,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:44,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:15:44,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:15:44,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:15:44,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 07:15:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:44,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-12 07:15:44,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:15:44,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-12 07:15:44,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-12 07:15:44,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-12 07:15:44,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 07:15:44,591 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 81 treesize of output 47 [2024-11-12 07:15:44,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:15:44,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 32 [2024-11-12 07:15:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-12 07:15:44,800 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:15:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:45,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931864263] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 07:15:45,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-12 07:15:45,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 10] total 18 [2024-11-12 07:15:45,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706493322] [2024-11-12 07:15:45,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:45,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:15:45,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:45,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:15:45,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-11-12 07:15:45,042 INFO L87 Difference]: Start difference. First operand 298 states and 401 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:45,508 INFO L93 Difference]: Finished difference Result 629 states and 842 transitions. [2024-11-12 07:15:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:15:45,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-12 07:15:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:45,511 INFO L225 Difference]: With dead ends: 629 [2024-11-12 07:15:45,511 INFO L226 Difference]: Without dead ends: 334 [2024-11-12 07:15:45,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 347 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-12 07:15:45,513 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 84 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:45,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1290 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:15:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-12 07:15:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 294. [2024-11-12 07:15:45,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 245 states have internal predecessors, (311), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 07:15:45,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 395 transitions. [2024-11-12 07:15:45,568 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 395 transitions. Word has length 157 [2024-11-12 07:15:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:45,568 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 395 transitions. [2024-11-12 07:15:45,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 395 transitions. [2024-11-12 07:15:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:15:45,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:45,571 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:45,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 07:15:45,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:15:45,771 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:45,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:45,772 INFO L85 PathProgramCache]: Analyzing trace with hash 31671638, now seen corresponding path program 1 times [2024-11-12 07:15:45,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:45,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258172965] [2024-11-12 07:15:45,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:45,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,249 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:46,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:46,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258172965] [2024-11-12 07:15:46,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258172965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:46,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:46,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 07:15:46,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915261386] [2024-11-12 07:15:46,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:46,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 07:15:46,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 07:15:46,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:15:46,252 INFO L87 Difference]: Start difference. First operand 294 states and 395 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:46,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:46,448 INFO L93 Difference]: Finished difference Result 594 states and 799 transitions. [2024-11-12 07:15:46,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:15:46,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-12 07:15:46,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:46,451 INFO L225 Difference]: With dead ends: 594 [2024-11-12 07:15:46,451 INFO L226 Difference]: Without dead ends: 303 [2024-11-12 07:15:46,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:15:46,453 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 115 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:46,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 650 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:15:46,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-12 07:15:46,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 259. [2024-11-12 07:15:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 208 states have (on average 1.2644230769230769) internal successors, (263), 210 states have internal predecessors, (263), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 07:15:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 347 transitions. [2024-11-12 07:15:46,504 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 347 transitions. Word has length 157 [2024-11-12 07:15:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:46,504 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 347 transitions. [2024-11-12 07:15:46,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 347 transitions. [2024-11-12 07:15:46,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-12 07:15:46,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:46,507 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:46,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 07:15:46,507 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:46,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:46,508 INFO L85 PathProgramCache]: Analyzing trace with hash 252308769, now seen corresponding path program 1 times [2024-11-12 07:15:46,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:46,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225800827] [2024-11-12 07:15:46,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:46,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:46,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:46,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225800827] [2024-11-12 07:15:46,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225800827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:46,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:46,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:15:46,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037939288] [2024-11-12 07:15:46,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:46,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:15:46,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:46,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:15:46,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:15:46,765 INFO L87 Difference]: Start difference. First operand 259 states and 347 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:46,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:46,959 INFO L93 Difference]: Finished difference Result 653 states and 883 transitions. [2024-11-12 07:15:46,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:15:46,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-12 07:15:46,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:46,962 INFO L225 Difference]: With dead ends: 653 [2024-11-12 07:15:46,962 INFO L226 Difference]: Without dead ends: 397 [2024-11-12 07:15:46,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:15:46,964 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 60 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:46,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 584 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:15:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-12 07:15:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 299. [2024-11-12 07:15:47,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 248 states have (on average 1.2741935483870968) internal successors, (316), 250 states have internal predecessors, (316), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 07:15:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 400 transitions. [2024-11-12 07:15:47,016 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 400 transitions. Word has length 158 [2024-11-12 07:15:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:47,017 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 400 transitions. [2024-11-12 07:15:47,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 400 transitions. [2024-11-12 07:15:47,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-12 07:15:47,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:47,019 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:47,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 07:15:47,020 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:47,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:47,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1027554909, now seen corresponding path program 1 times [2024-11-12 07:15:47,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:47,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553599442] [2024-11-12 07:15:47,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:47,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:47,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:47,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553599442] [2024-11-12 07:15:47,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553599442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:47,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:47,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:15:47,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815074051] [2024-11-12 07:15:47,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:47,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:15:47,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:47,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:15:47,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:15:47,499 INFO L87 Difference]: Start difference. First operand 299 states and 400 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:47,736 INFO L93 Difference]: Finished difference Result 816 states and 1094 transitions. [2024-11-12 07:15:47,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:15:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-12 07:15:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:47,741 INFO L225 Difference]: With dead ends: 816 [2024-11-12 07:15:47,741 INFO L226 Difference]: Without dead ends: 520 [2024-11-12 07:15:47,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:15:47,743 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 99 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:47,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 540 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:15:47,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-12 07:15:47,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 329. [2024-11-12 07:15:47,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 278 states have (on average 1.2733812949640289) internal successors, (354), 280 states have internal predecessors, (354), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 07:15:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 438 transitions. [2024-11-12 07:15:47,794 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 438 transitions. Word has length 158 [2024-11-12 07:15:47,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:47,795 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 438 transitions. [2024-11-12 07:15:47,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 438 transitions. [2024-11-12 07:15:47,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-12 07:15:47,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:47,797 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:47,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 07:15:47,798 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:47,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:47,798 INFO L85 PathProgramCache]: Analyzing trace with hash 527068383, now seen corresponding path program 1 times [2024-11-12 07:15:47,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:47,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753342648] [2024-11-12 07:15:47,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:47,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,124 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:48,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:48,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753342648] [2024-11-12 07:15:48,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753342648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:48,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:48,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:15:48,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649397450] [2024-11-12 07:15:48,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:48,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:15:48,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:15:48,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:15:48,127 INFO L87 Difference]: Start difference. First operand 329 states and 438 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:48,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:48,361 INFO L93 Difference]: Finished difference Result 783 states and 1041 transitions. [2024-11-12 07:15:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:15:48,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-12 07:15:48,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:48,364 INFO L225 Difference]: With dead ends: 783 [2024-11-12 07:15:48,365 INFO L226 Difference]: Without dead ends: 457 [2024-11-12 07:15:48,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:15:48,366 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 97 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:48,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 695 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:15:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-12 07:15:48,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 270. [2024-11-12 07:15:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 230 states have (on average 1.2608695652173914) internal successors, (290), 231 states have internal predecessors, (290), 32 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:15:48,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 354 transitions. [2024-11-12 07:15:48,406 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 354 transitions. Word has length 158 [2024-11-12 07:15:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:48,408 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 354 transitions. [2024-11-12 07:15:48,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 354 transitions. [2024-11-12 07:15:48,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-12 07:15:48,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:48,410 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:48,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 07:15:48,411 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:48,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:48,411 INFO L85 PathProgramCache]: Analyzing trace with hash -752795295, now seen corresponding path program 1 times [2024-11-12 07:15:48,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:48,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256237766] [2024-11-12 07:15:48,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:48,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:15:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:15:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:15:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:15:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:15:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:15:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:15:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:15:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:15:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:15:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:15:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:15:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:15:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:15:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:15:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:15:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:15:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:15:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:15:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:15:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:15:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:15:48,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:15:48,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256237766] [2024-11-12 07:15:48,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256237766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:15:48,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:15:48,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:15:48,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468883672] [2024-11-12 07:15:48,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:15:48,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:15:48,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:15:48,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:15:48,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:15:48,595 INFO L87 Difference]: Start difference. First operand 270 states and 354 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:15:48,786 INFO L93 Difference]: Finished difference Result 621 states and 817 transitions. [2024-11-12 07:15:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:15:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-12 07:15:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:15:48,788 INFO L225 Difference]: With dead ends: 621 [2024-11-12 07:15:48,789 INFO L226 Difference]: Without dead ends: 354 [2024-11-12 07:15:48,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:15:48,790 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 50 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:15:48,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 807 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:15:48,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-12 07:15:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 302. [2024-11-12 07:15:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 262 states have (on average 1.2633587786259541) internal successors, (331), 263 states have internal predecessors, (331), 32 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:15:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 395 transitions. [2024-11-12 07:15:48,843 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 395 transitions. Word has length 158 [2024-11-12 07:15:48,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:15:48,844 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 395 transitions. [2024-11-12 07:15:48,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:15:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 395 transitions. [2024-11-12 07:15:48,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-12 07:15:48,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:15:48,846 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:15:48,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 07:15:48,846 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:15:48,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:15:48,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1008765421, now seen corresponding path program 1 times [2024-11-12 07:15:48,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:15:48,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629786477] [2024-11-12 07:15:48,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:15:48,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:15:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:05,939 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:05,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629786477] [2024-11-12 07:16:05,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629786477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:05,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:05,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-12 07:16:05,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354888414] [2024-11-12 07:16:05,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:05,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 07:16:05,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:05,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 07:16:05,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-12 07:16:05,941 INFO L87 Difference]: Start difference. First operand 302 states and 395 transitions. Second operand has 15 states, 13 states have (on average 4.769230769230769) internal successors, (62), 15 states have internal predecessors, (62), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-12 07:16:21,530 WARN L286 SmtUtils]: Spent 13.58s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-12 07:16:25,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 07:16:29,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 07:16:33,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 07:16:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:34,189 INFO L93 Difference]: Finished difference Result 1470 states and 1925 transitions. [2024-11-12 07:16:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-12 07:16:34,189 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.769230769230769) internal successors, (62), 15 states have internal predecessors, (62), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159 [2024-11-12 07:16:34,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:34,194 INFO L225 Difference]: With dead ends: 1470 [2024-11-12 07:16:34,194 INFO L226 Difference]: Without dead ends: 1171 [2024-11-12 07:16:34,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=141, Invalid=671, Unknown=0, NotChecked=0, Total=812 [2024-11-12 07:16:34,196 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 681 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:34,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 2591 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 824 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2024-11-12 07:16:34,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2024-11-12 07:16:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 667. [2024-11-12 07:16:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 588 states have (on average 1.2687074829931972) internal successors, (746), 590 states have internal predecessors, (746), 64 states have call successors, (64), 14 states have call predecessors, (64), 14 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:16:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 874 transitions. [2024-11-12 07:16:34,307 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 874 transitions. Word has length 159 [2024-11-12 07:16:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:34,307 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 874 transitions. [2024-11-12 07:16:34,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.769230769230769) internal successors, (62), 15 states have internal predecessors, (62), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-12 07:16:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 874 transitions. [2024-11-12 07:16:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:34,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:34,310 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:34,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 07:16:34,310 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:34,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:34,312 INFO L85 PathProgramCache]: Analyzing trace with hash -502737119, now seen corresponding path program 1 times [2024-11-12 07:16:34,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:34,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200985516] [2024-11-12 07:16:34,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:34,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:34,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:34,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200985516] [2024-11-12 07:16:34,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200985516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:34,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:34,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:16:34,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460713115] [2024-11-12 07:16:34,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:34,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:16:34,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:16:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:16:34,879 INFO L87 Difference]: Start difference. First operand 667 states and 874 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:35,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:35,114 INFO L93 Difference]: Finished difference Result 1737 states and 2260 transitions. [2024-11-12 07:16:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:16:35,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-12 07:16:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:35,120 INFO L225 Difference]: With dead ends: 1737 [2024-11-12 07:16:35,120 INFO L226 Difference]: Without dead ends: 1073 [2024-11-12 07:16:35,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:16:35,124 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 58 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:35,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 640 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:16:35,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-12 07:16:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1067. [2024-11-12 07:16:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 976 states have (on average 1.2663934426229508) internal successors, (1236), 982 states have internal predecessors, (1236), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-12 07:16:35,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1380 transitions. [2024-11-12 07:16:35,236 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1380 transitions. Word has length 160 [2024-11-12 07:16:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:35,237 INFO L471 AbstractCegarLoop]: Abstraction has 1067 states and 1380 transitions. [2024-11-12 07:16:35,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1380 transitions. [2024-11-12 07:16:35,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:35,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:35,240 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:35,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 07:16:35,241 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:35,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:35,241 INFO L85 PathProgramCache]: Analyzing trace with hash 198327459, now seen corresponding path program 1 times [2024-11-12 07:16:35,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:35,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751561264] [2024-11-12 07:16:35,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:35,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:36,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:36,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751561264] [2024-11-12 07:16:36,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751561264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:36,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:36,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 07:16:36,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820121074] [2024-11-12 07:16:36,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:36,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 07:16:36,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:36,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 07:16:36,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:16:36,320 INFO L87 Difference]: Start difference. First operand 1067 states and 1380 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:36,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:36,766 INFO L93 Difference]: Finished difference Result 2242 states and 2894 transitions. [2024-11-12 07:16:36,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 07:16:36,767 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-12 07:16:36,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:36,771 INFO L225 Difference]: With dead ends: 2242 [2024-11-12 07:16:36,772 INFO L226 Difference]: Without dead ends: 1178 [2024-11-12 07:16:36,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-12 07:16:36,774 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 146 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:36,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1222 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:16:36,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2024-11-12 07:16:36,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1136. [2024-11-12 07:16:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1045 states have (on average 1.260287081339713) internal successors, (1317), 1051 states have internal predecessors, (1317), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-12 07:16:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1461 transitions. [2024-11-12 07:16:36,882 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1461 transitions. Word has length 160 [2024-11-12 07:16:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:36,883 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1461 transitions. [2024-11-12 07:16:36,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:36,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1461 transitions. [2024-11-12 07:16:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:36,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:36,886 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:36,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 07:16:36,886 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:36,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash -903166998, now seen corresponding path program 1 times [2024-11-12 07:16:36,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:36,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180744906] [2024-11-12 07:16:36,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:36,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:37,308 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:37,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180744906] [2024-11-12 07:16:37,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180744906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:37,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:37,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:16:37,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228326304] [2024-11-12 07:16:37,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:37,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:16:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:16:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:16:37,311 INFO L87 Difference]: Start difference. First operand 1136 states and 1461 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:37,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:37,618 INFO L93 Difference]: Finished difference Result 2340 states and 2994 transitions. [2024-11-12 07:16:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:16:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-12 07:16:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:37,624 INFO L225 Difference]: With dead ends: 2340 [2024-11-12 07:16:37,624 INFO L226 Difference]: Without dead ends: 1207 [2024-11-12 07:16:37,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:16:37,627 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 63 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:37,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 737 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:16:37,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-12 07:16:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1201. [2024-11-12 07:16:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1083 states have (on average 1.2419205909510618) internal successors, (1345), 1090 states have internal predecessors, (1345), 90 states have call successors, (90), 27 states have call predecessors, (90), 27 states have return successors, (90), 83 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-12 07:16:37,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1525 transitions. [2024-11-12 07:16:37,783 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1525 transitions. Word has length 160 [2024-11-12 07:16:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:37,784 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1525 transitions. [2024-11-12 07:16:37,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1525 transitions. [2024-11-12 07:16:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:37,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:37,787 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:37,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 07:16:37,787 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:37,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:37,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1446121962, now seen corresponding path program 1 times [2024-11-12 07:16:37,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:37,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188998778] [2024-11-12 07:16:37,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:37,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:38,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:38,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188998778] [2024-11-12 07:16:38,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188998778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:38,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:38,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:16:38,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958060057] [2024-11-12 07:16:38,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:38,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:16:38,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:38,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:16:38,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:16:38,217 INFO L87 Difference]: Start difference. First operand 1201 states and 1525 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:38,532 INFO L93 Difference]: Finished difference Result 2404 states and 3042 transitions. [2024-11-12 07:16:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:16:38,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-12 07:16:38,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:38,538 INFO L225 Difference]: With dead ends: 2404 [2024-11-12 07:16:38,539 INFO L226 Difference]: Without dead ends: 1215 [2024-11-12 07:16:38,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:16:38,542 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 67 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:38,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 748 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:16:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-11-12 07:16:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1209. [2024-11-12 07:16:38,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1087 states have (on average 1.233670653173873) internal successors, (1341), 1094 states have internal predecessors, (1341), 90 states have call successors, (90), 31 states have call predecessors, (90), 31 states have return successors, (90), 83 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-12 07:16:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1521 transitions. [2024-11-12 07:16:38,706 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1521 transitions. Word has length 160 [2024-11-12 07:16:38,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:38,706 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1521 transitions. [2024-11-12 07:16:38,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:38,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1521 transitions. [2024-11-12 07:16:38,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:38,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:38,710 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:38,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 07:16:38,710 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:38,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1045692083, now seen corresponding path program 1 times [2024-11-12 07:16:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:38,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094311441] [2024-11-12 07:16:38,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:39,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:39,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094311441] [2024-11-12 07:16:39,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094311441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:39,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:39,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:16:39,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150784149] [2024-11-12 07:16:39,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:39,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:16:39,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:16:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:16:39,190 INFO L87 Difference]: Start difference. First operand 1209 states and 1521 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:39,477 INFO L93 Difference]: Finished difference Result 2846 states and 3574 transitions. [2024-11-12 07:16:39,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:16:39,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-12 07:16:39,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:39,485 INFO L225 Difference]: With dead ends: 2846 [2024-11-12 07:16:39,485 INFO L226 Difference]: Without dead ends: 1649 [2024-11-12 07:16:39,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:16:39,488 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 107 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:39,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 658 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:16:39,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-11-12 07:16:39,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1643. [2024-11-12 07:16:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1497 states have (on average 1.2324649298597194) internal successors, (1845), 1508 states have internal predecessors, (1845), 106 states have call successors, (106), 39 states have call predecessors, (106), 39 states have return successors, (106), 95 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-12 07:16:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2057 transitions. [2024-11-12 07:16:39,682 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2057 transitions. Word has length 160 [2024-11-12 07:16:39,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:39,682 INFO L471 AbstractCegarLoop]: Abstraction has 1643 states and 2057 transitions. [2024-11-12 07:16:39,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2057 transitions. [2024-11-12 07:16:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:39,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:39,686 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:39,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 07:16:39,686 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:39,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:39,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1746756661, now seen corresponding path program 1 times [2024-11-12 07:16:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:39,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12040139] [2024-11-12 07:16:39,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:40,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:40,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12040139] [2024-11-12 07:16:40,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12040139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:40,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:40,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 07:16:40,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761388336] [2024-11-12 07:16:40,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:40,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 07:16:40,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:40,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 07:16:40,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:16:40,811 INFO L87 Difference]: Start difference. First operand 1643 states and 2057 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:41,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:41,367 INFO L93 Difference]: Finished difference Result 3484 states and 4359 transitions. [2024-11-12 07:16:41,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 07:16:41,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-12 07:16:41,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:41,378 INFO L225 Difference]: With dead ends: 3484 [2024-11-12 07:16:41,378 INFO L226 Difference]: Without dead ends: 1853 [2024-11-12 07:16:41,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-12 07:16:41,382 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 97 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:41,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1767 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:16:41,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2024-11-12 07:16:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1781. [2024-11-12 07:16:41,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1635 states have (on average 1.2262996941896025) internal successors, (2005), 1646 states have internal predecessors, (2005), 106 states have call successors, (106), 39 states have call predecessors, (106), 39 states have return successors, (106), 95 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-12 07:16:41,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2217 transitions. [2024-11-12 07:16:41,566 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2217 transitions. Word has length 160 [2024-11-12 07:16:41,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:41,566 INFO L471 AbstractCegarLoop]: Abstraction has 1781 states and 2217 transitions. [2024-11-12 07:16:41,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 07:16:41,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2217 transitions. [2024-11-12 07:16:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:41,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:41,570 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:41,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 07:16:41,570 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:41,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:41,571 INFO L85 PathProgramCache]: Analyzing trace with hash -877535951, now seen corresponding path program 1 times [2024-11-12 07:16:41,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:41,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026464711] [2024-11-12 07:16:41,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:41,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:41,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:41,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026464711] [2024-11-12 07:16:41,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026464711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:41,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:41,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:16:41,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089978237] [2024-11-12 07:16:41,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:41,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:16:41,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:41,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:16:41,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:16:41,798 INFO L87 Difference]: Start difference. First operand 1781 states and 2217 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:16:42,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:42,147 INFO L93 Difference]: Finished difference Result 3743 states and 4688 transitions. [2024-11-12 07:16:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:16:42,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-12 07:16:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:42,156 INFO L225 Difference]: With dead ends: 3743 [2024-11-12 07:16:42,156 INFO L226 Difference]: Without dead ends: 1974 [2024-11-12 07:16:42,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:16:42,160 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 136 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:42,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 928 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:16:42,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2024-11-12 07:16:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1707. [2024-11-12 07:16:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1555 states have (on average 1.2237942122186496) internal successors, (1903), 1565 states have internal predecessors, (1903), 110 states have call successors, (110), 41 states have call predecessors, (110), 41 states have return successors, (110), 100 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-12 07:16:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2123 transitions. [2024-11-12 07:16:42,381 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2123 transitions. Word has length 160 [2024-11-12 07:16:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:42,382 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 2123 transitions. [2024-11-12 07:16:42,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:16:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2123 transitions. [2024-11-12 07:16:42,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-12 07:16:42,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:42,385 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:42,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 07:16:42,385 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:42,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:42,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1716526670, now seen corresponding path program 1 times [2024-11-12 07:16:42,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:42,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202721530] [2024-11-12 07:16:42,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:42,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202721530] [2024-11-12 07:16:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202721530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:42,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:42,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 07:16:42,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648693699] [2024-11-12 07:16:42,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:42,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 07:16:42,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:42,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 07:16:42,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:16:42,881 INFO L87 Difference]: Start difference. First operand 1707 states and 2123 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:16:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:43,226 INFO L93 Difference]: Finished difference Result 3475 states and 4323 transitions. [2024-11-12 07:16:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 07:16:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-12 07:16:43,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:43,236 INFO L225 Difference]: With dead ends: 3475 [2024-11-12 07:16:43,239 INFO L226 Difference]: Without dead ends: 1771 [2024-11-12 07:16:43,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-12 07:16:43,244 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 114 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:43,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 844 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:16:43,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2024-11-12 07:16:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1535. [2024-11-12 07:16:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1383 states have (on average 1.215473608098337) internal successors, (1681), 1393 states have internal predecessors, (1681), 110 states have call successors, (110), 41 states have call predecessors, (110), 41 states have return successors, (110), 100 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-12 07:16:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1901 transitions. [2024-11-12 07:16:43,412 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1901 transitions. Word has length 160 [2024-11-12 07:16:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:43,413 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 1901 transitions. [2024-11-12 07:16:43,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:16:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1901 transitions. [2024-11-12 07:16:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-12 07:16:43,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:43,416 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:43,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 07:16:43,416 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:43,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:43,417 INFO L85 PathProgramCache]: Analyzing trace with hash -256326258, now seen corresponding path program 1 times [2024-11-12 07:16:43,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:43,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919625674] [2024-11-12 07:16:43,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:43,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:16:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:16:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:16:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:16:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:16:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:16:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:16:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:16:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:16:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:16:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:16:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:16:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:16:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:16:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:16:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:16:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:16:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:16:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:16:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:16:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:16:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-12 07:16:43,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:16:43,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919625674] [2024-11-12 07:16:43,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919625674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:16:43,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:16:43,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:16:43,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951122313] [2024-11-12 07:16:43,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:16:43,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:16:43,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:16:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:16:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:16:43,584 INFO L87 Difference]: Start difference. First operand 1535 states and 1901 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:16:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:16:43,954 INFO L93 Difference]: Finished difference Result 4257 states and 5285 transitions. [2024-11-12 07:16:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:16:43,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-12 07:16:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:16:43,968 INFO L225 Difference]: With dead ends: 4257 [2024-11-12 07:16:43,969 INFO L226 Difference]: Without dead ends: 2725 [2024-11-12 07:16:43,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:16:43,978 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 105 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:16:43,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 400 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:16:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2024-11-12 07:16:44,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1985. [2024-11-12 07:16:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1807 states have (on average 1.223021582733813) internal successors, (2210), 1817 states have internal predecessors, (2210), 130 states have call successors, (130), 47 states have call predecessors, (130), 47 states have return successors, (130), 120 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-12 07:16:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 2470 transitions. [2024-11-12 07:16:44,196 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 2470 transitions. Word has length 161 [2024-11-12 07:16:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:16:44,196 INFO L471 AbstractCegarLoop]: Abstraction has 1985 states and 2470 transitions. [2024-11-12 07:16:44,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-12 07:16:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 2470 transitions. [2024-11-12 07:16:44,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-12 07:16:44,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:16:44,200 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:16:44,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-12 07:16:44,200 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:16:44,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:16:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1267443508, now seen corresponding path program 1 times [2024-11-12 07:16:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:16:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940726860] [2024-11-12 07:16:44,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:16:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:16:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat