./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:32:06,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:32:06,695 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:32:06,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:32:06,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:32:06,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:32:06,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:32:06,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:32:06,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:32:06,723 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:32:06,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:32:06,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:32:06,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:32:06,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:32:06,725 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:32:06,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:32:06,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:32:06,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:32:06,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:32:06,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:32:06,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:32:06,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:32:06,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:32:06,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:32:06,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:32:06,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:32:06,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:32:06,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:32:06,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:32:06,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:32:06,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:32:06,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:32:06,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:32:06,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:32:06,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:32:06,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:32:06,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:32:06,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:32:06,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:32:06,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:32:06,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:32:06,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:32:06,734 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 [2024-11-22 12:32:06,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:32:06,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:32:06,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:32:06,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:32:06,945 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:32:06,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-22 12:32:08,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:32:08,394 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:32:08,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-22 12:32:08,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/558b471d0/37e25f4785b4426db82990f814a6df7f/FLAGed290315a [2024-11-22 12:32:08,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/558b471d0/37e25f4785b4426db82990f814a6df7f [2024-11-22 12:32:08,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:32:08,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:32:08,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:32:08,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:32:08,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:32:08,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0ec1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08, skipping insertion in model container [2024-11-22 12:32:08,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:32:08,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-11-22 12:32:08,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:32:08,692 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:32:08,703 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-11-22 12:32:08,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:32:08,748 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:32:08,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08 WrapperNode [2024-11-22 12:32:08,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:32:08,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:32:08,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:32:08,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:32:08,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,794 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 433 [2024-11-22 12:32:08,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:32:08,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:32:08,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:32:08,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:32:08,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,819 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2024-11-22 12:32:08,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:32:08,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:32:08,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:32:08,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:32:08,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (1/1) ... [2024-11-22 12:32:08,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:32:08,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:32:08,885 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) [2024-11-22 12:32:08,890 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 [2024-11-22 12:32:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:32:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:32:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:32:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:32:08,931 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:32:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:32:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:32:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:32:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:32:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:32:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:32:08,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:32:09,031 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:32:09,033 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:32:09,333 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-22 12:32:09,333 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:32:09,345 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:32:09,347 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:32:09,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:32:09 BoogieIcfgContainer [2024-11-22 12:32:09,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:32:09,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:32:09,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:32:09,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:32:09,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:32:08" (1/3) ... [2024-11-22 12:32:09,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d412e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:32:09, skipping insertion in model container [2024-11-22 12:32:09,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:08" (2/3) ... [2024-11-22 12:32:09,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d412e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:32:09, skipping insertion in model container [2024-11-22 12:32:09,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:32:09" (3/3) ... [2024-11-22 12:32:09,354 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-27.i [2024-11-22 12:32:09,366 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:32:09,366 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:32:09,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:32:09,426 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;@17adc2e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:32:09,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:32:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 12:32:09,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 12:32:09,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:09,440 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:09,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:09,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-11-22 12:32:09,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:09,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699491979] [2024-11-22 12:32:09,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:09,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-22 12:32:09,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:09,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699491979] [2024-11-22 12:32:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699491979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:32:09,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957277972] [2024-11-22 12:32:09,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:09,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:32:09,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:32:09,767 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) [2024-11-22 12:32:09,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:32:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:09,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:32:09,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:32:09,989 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-22 12:32:09,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:32:09,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957277972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:09,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:32:09,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:32:09,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34968370] [2024-11-22 12:32:09,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:09,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:32:09,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:10,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:32:10,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:32:10,017 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:10,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:10,038 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-22 12:32:10,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:32:10,040 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-22 12:32:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:10,045 INFO L225 Difference]: With dead ends: 181 [2024-11-22 12:32:10,045 INFO L226 Difference]: Without dead ends: 90 [2024-11-22 12:32:10,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:32:10,050 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:10,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:32:10,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-22 12:32:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-22 12:32:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 12:32:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-22 12:32:10,083 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-22 12:32:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:10,084 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-22 12:32:10,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:10,084 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-22 12:32:10,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 12:32:10,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:10,089 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:10,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:32:10,290 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,SelfDestructingSolverStorable0 [2024-11-22 12:32:10,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:10,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:10,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-11-22 12:32:10,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:10,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948041791] [2024-11-22 12:32:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:10,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:11,690 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:11,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:11,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948041791] [2024-11-22 12:32:11,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948041791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:11,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:11,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:32:11,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813892306] [2024-11-22 12:32:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:11,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:32:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:11,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:32:11,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:11,696 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:11,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:11,949 INFO L93 Difference]: Finished difference Result 232 states and 332 transitions. [2024-11-22 12:32:11,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:32:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-22 12:32:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:11,952 INFO L225 Difference]: With dead ends: 232 [2024-11-22 12:32:11,953 INFO L226 Difference]: Without dead ends: 145 [2024-11-22 12:32:11,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:32:11,955 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 69 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:11,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 659 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:11,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-22 12:32:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-11-22 12:32:11,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 116 states have (on average 1.353448275862069) internal successors, (157), 117 states have internal predecessors, (157), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 12:32:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2024-11-22 12:32:11,975 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 131 [2024-11-22 12:32:11,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:11,976 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2024-11-22 12:32:11,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2024-11-22 12:32:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 12:32:11,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:11,980 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:11,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:32:11,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:11,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash -828522667, now seen corresponding path program 1 times [2024-11-22 12:32:11,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:11,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078521754] [2024-11-22 12:32:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:11,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:12,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:12,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078521754] [2024-11-22 12:32:12,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078521754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:12,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:12,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:12,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907727810] [2024-11-22 12:32:12,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:12,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:12,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:12,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:12,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:12,540 INFO L87 Difference]: Start difference. First operand 142 states and 203 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:12,805 INFO L93 Difference]: Finished difference Result 362 states and 520 transitions. [2024-11-22 12:32:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:32:12,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-22 12:32:12,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:12,811 INFO L225 Difference]: With dead ends: 362 [2024-11-22 12:32:12,813 INFO L226 Difference]: Without dead ends: 223 [2024-11-22 12:32:12,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:32:12,815 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 110 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:12,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 742 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-22 12:32:12,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2024-11-22 12:32:12,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 175 states have (on average 1.3371428571428572) internal successors, (234), 176 states have internal predecessors, (234), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:32:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 314 transitions. [2024-11-22 12:32:12,843 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 314 transitions. Word has length 133 [2024-11-22 12:32:12,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:12,844 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 314 transitions. [2024-11-22 12:32:12,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 314 transitions. [2024-11-22 12:32:12,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 12:32:12,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:12,846 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:12,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:32:12,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:12,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1503590059, now seen corresponding path program 1 times [2024-11-22 12:32:12,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:12,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878933823] [2024-11-22 12:32:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:12,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:13,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:13,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878933823] [2024-11-22 12:32:13,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878933823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:13,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:13,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:13,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133990575] [2024-11-22 12:32:13,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:13,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:13,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:13,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:13,415 INFO L87 Difference]: Start difference. First operand 219 states and 314 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:13,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:13,661 INFO L93 Difference]: Finished difference Result 411 states and 587 transitions. [2024-11-22 12:32:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:32:13,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-22 12:32:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:13,664 INFO L225 Difference]: With dead ends: 411 [2024-11-22 12:32:13,664 INFO L226 Difference]: Without dead ends: 179 [2024-11-22 12:32:13,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:32:13,665 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 113 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:13,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 537 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:13,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-22 12:32:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2024-11-22 12:32:13,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 137 states have internal predecessors, (178), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:32:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2024-11-22 12:32:13,689 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 133 [2024-11-22 12:32:13,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:13,691 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2024-11-22 12:32:13,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2024-11-22 12:32:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:32:13,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:13,693 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:13,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:32:13,693 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:13,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash -252020168, now seen corresponding path program 1 times [2024-11-22 12:32:13,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:13,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145523954] [2024-11-22 12:32:13,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:13,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:14,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:14,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145523954] [2024-11-22 12:32:14,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145523954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:14,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:14,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:14,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839691990] [2024-11-22 12:32:14,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:14,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:14,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:14,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:14,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:14,047 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:14,124 INFO L93 Difference]: Finished difference Result 451 states and 633 transitions. [2024-11-22 12:32:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:14,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-22 12:32:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:14,127 INFO L225 Difference]: With dead ends: 451 [2024-11-22 12:32:14,128 INFO L226 Difference]: Without dead ends: 279 [2024-11-22 12:32:14,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:14,130 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 76 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:14,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 690 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-22 12:32:14,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2024-11-22 12:32:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 233 states have internal predecessors, (309), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:32:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 385 transitions. [2024-11-22 12:32:14,149 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 385 transitions. Word has length 134 [2024-11-22 12:32:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:14,149 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 385 transitions. [2024-11-22 12:32:14,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:14,150 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 385 transitions. [2024-11-22 12:32:14,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:32:14,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:14,151 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:14,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:32:14,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:14,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash -314059782, now seen corresponding path program 1 times [2024-11-22 12:32:14,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:14,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885742676] [2024-11-22 12:32:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:14,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:14,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:14,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885742676] [2024-11-22 12:32:14,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885742676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:14,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:14,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:14,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468697241] [2024-11-22 12:32:14,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:14,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:14,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:14,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:14,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:14,426 INFO L87 Difference]: Start difference. First operand 275 states and 385 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:14,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:14,511 INFO L93 Difference]: Finished difference Result 657 states and 911 transitions. [2024-11-22 12:32:14,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:14,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-22 12:32:14,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:14,513 INFO L225 Difference]: With dead ends: 657 [2024-11-22 12:32:14,513 INFO L226 Difference]: Without dead ends: 385 [2024-11-22 12:32:14,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:14,515 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 67 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:14,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 754 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:14,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-22 12:32:14,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 215. [2024-11-22 12:32:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 175 states have internal predecessors, (227), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:32:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 295 transitions. [2024-11-22 12:32:14,526 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 295 transitions. Word has length 134 [2024-11-22 12:32:14,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:14,527 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 295 transitions. [2024-11-22 12:32:14,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 295 transitions. [2024-11-22 12:32:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:32:14,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:14,528 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:14,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:32:14,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:14,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-11-22 12:32:14,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:14,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378262685] [2024-11-22 12:32:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:14,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:15,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:15,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378262685] [2024-11-22 12:32:15,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378262685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:15,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:15,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:32:15,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767547888] [2024-11-22 12:32:15,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:15,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:32:15,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:15,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:32:15,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:32:15,472 INFO L87 Difference]: Start difference. First operand 215 states and 295 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:15,814 INFO L93 Difference]: Finished difference Result 493 states and 674 transitions. [2024-11-22 12:32:15,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:32:15,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:32:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:15,818 INFO L225 Difference]: With dead ends: 493 [2024-11-22 12:32:15,818 INFO L226 Difference]: Without dead ends: 281 [2024-11-22 12:32:15,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:32:15,824 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 71 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:15,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1076 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:32:15,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-22 12:32:15,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-11-22 12:32:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 230 states have (on average 1.3) internal successors, (299), 231 states have internal predecessors, (299), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:32:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 379 transitions. [2024-11-22 12:32:15,837 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 379 transitions. Word has length 135 [2024-11-22 12:32:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:15,837 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 379 transitions. [2024-11-22 12:32:15,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 379 transitions. [2024-11-22 12:32:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:32:15,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:15,839 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:15,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:32:15,839 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:15,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-11-22 12:32:15,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:15,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404665155] [2024-11-22 12:32:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:15,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:16,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:16,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404665155] [2024-11-22 12:32:16,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404665155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:16,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:32:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386703392] [2024-11-22 12:32:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:16,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:32:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:32:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:32:16,596 INFO L87 Difference]: Start difference. First operand 278 states and 379 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:16,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:16,830 INFO L93 Difference]: Finished difference Result 556 states and 755 transitions. [2024-11-22 12:32:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:32:16,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-22 12:32:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:16,832 INFO L225 Difference]: With dead ends: 556 [2024-11-22 12:32:16,832 INFO L226 Difference]: Without dead ends: 281 [2024-11-22 12:32:16,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:32:16,834 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 59 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:16,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 935 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:16,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-22 12:32:16,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2024-11-22 12:32:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 230 states have (on average 1.291304347826087) internal successors, (297), 231 states have internal predecessors, (297), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:32:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 377 transitions. [2024-11-22 12:32:16,850 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 377 transitions. Word has length 135 [2024-11-22 12:32:16,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:16,853 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 377 transitions. [2024-11-22 12:32:16,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 377 transitions. [2024-11-22 12:32:16,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:32:16,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:16,854 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:16,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:32:16,855 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:16,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:16,856 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-11-22 12:32:16,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:16,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322015620] [2024-11-22 12:32:16,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:16,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:17,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:17,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322015620] [2024-11-22 12:32:17,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322015620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:17,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:17,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:32:17,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687392837] [2024-11-22 12:32:17,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:17,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:32:17,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:17,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:32:17,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:32:17,449 INFO L87 Difference]: Start difference. First operand 279 states and 377 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:17,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:17,640 INFO L93 Difference]: Finished difference Result 561 states and 755 transitions. [2024-11-22 12:32:17,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:32:17,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-22 12:32:17,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:17,642 INFO L225 Difference]: With dead ends: 561 [2024-11-22 12:32:17,642 INFO L226 Difference]: Without dead ends: 285 [2024-11-22 12:32:17,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:32:17,643 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 62 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:17,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 654 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:17,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-22 12:32:17,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283. [2024-11-22 12:32:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 234 states have internal predecessors, (299), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:32:17,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 379 transitions. [2024-11-22 12:32:17,658 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 379 transitions. Word has length 135 [2024-11-22 12:32:17,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:17,660 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 379 transitions. [2024-11-22 12:32:17,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 379 transitions. [2024-11-22 12:32:17,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:32:17,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:17,661 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:17,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:32:17,662 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:17,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:17,663 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-11-22 12:32:17,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:17,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836374416] [2024-11-22 12:32:17,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:17,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:18,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836374416] [2024-11-22 12:32:18,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836374416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:18,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:18,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:32:18,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907396503] [2024-11-22 12:32:18,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:18,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:32:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:32:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:32:18,241 INFO L87 Difference]: Start difference. First operand 283 states and 379 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:18,534 INFO L93 Difference]: Finished difference Result 583 states and 776 transitions. [2024-11-22 12:32:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:32:18,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:32:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:18,536 INFO L225 Difference]: With dead ends: 583 [2024-11-22 12:32:18,536 INFO L226 Difference]: Without dead ends: 303 [2024-11-22 12:32:18,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:32:18,537 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 61 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:18,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1247 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-22 12:32:18,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 283. [2024-11-22 12:32:18,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 234 states have internal predecessors, (298), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:32:18,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 378 transitions. [2024-11-22 12:32:18,552 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 378 transitions. Word has length 135 [2024-11-22 12:32:18,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:18,552 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 378 transitions. [2024-11-22 12:32:18,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:18,552 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 378 transitions. [2024-11-22 12:32:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:32:18,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:18,553 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:18,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:32:18,554 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:18,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:18,554 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-11-22 12:32:18,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:18,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270995423] [2024-11-22 12:32:18,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:18,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:18,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:18,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270995423] [2024-11-22 12:32:18,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270995423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:18,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:18,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:18,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244869801] [2024-11-22 12:32:18,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:18,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:18,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:18,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:18,826 INFO L87 Difference]: Start difference. First operand 283 states and 378 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:18,903 INFO L93 Difference]: Finished difference Result 703 states and 937 transitions. [2024-11-22 12:32:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:18,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-22 12:32:18,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:18,905 INFO L225 Difference]: With dead ends: 703 [2024-11-22 12:32:18,905 INFO L226 Difference]: Without dead ends: 423 [2024-11-22 12:32:18,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:18,906 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:18,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 464 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-22 12:32:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 328. [2024-11-22 12:32:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 278 states have (on average 1.2661870503597121) internal successors, (352), 279 states have internal predecessors, (352), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:32:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 432 transitions. [2024-11-22 12:32:18,922 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 432 transitions. Word has length 135 [2024-11-22 12:32:18,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:18,922 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 432 transitions. [2024-11-22 12:32:18,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 432 transitions. [2024-11-22 12:32:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:32:18,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:18,923 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:18,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:32:18,924 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:18,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:18,924 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-11-22 12:32:18,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:18,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256496274] [2024-11-22 12:32:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:18,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:19,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:19,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256496274] [2024-11-22 12:32:19,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256496274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:19,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:19,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:32:19,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601796685] [2024-11-22 12:32:19,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:19,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:32:19,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:19,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:32:19,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:32:19,588 INFO L87 Difference]: Start difference. First operand 328 states and 432 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:19,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:19,968 INFO L93 Difference]: Finished difference Result 863 states and 1130 transitions. [2024-11-22 12:32:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:32:19,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-22 12:32:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:19,970 INFO L225 Difference]: With dead ends: 863 [2024-11-22 12:32:19,971 INFO L226 Difference]: Without dead ends: 538 [2024-11-22 12:32:19,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:32:19,971 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 70 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:19,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 883 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:32:19,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-22 12:32:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 534. [2024-11-22 12:32:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 453 states have (on average 1.2538631346578366) internal successors, (568), 457 states have internal predecessors, (568), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:20,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 692 transitions. [2024-11-22 12:32:20,006 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 692 transitions. Word has length 135 [2024-11-22 12:32:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:20,006 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 692 transitions. [2024-11-22 12:32:20,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:20,007 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 692 transitions. [2024-11-22 12:32:20,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:32:20,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:20,009 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:20,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:32:20,009 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:20,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-11-22 12:32:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:20,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409164033] [2024-11-22 12:32:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:20,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:20,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409164033] [2024-11-22 12:32:20,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409164033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:20,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:20,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:32:20,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440771305] [2024-11-22 12:32:20,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:20,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:32:20,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:20,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:32:20,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:32:20,166 INFO L87 Difference]: Start difference. First operand 534 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:20,233 INFO L93 Difference]: Finished difference Result 1060 states and 1372 transitions. [2024-11-22 12:32:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:32:20,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:32:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:20,236 INFO L225 Difference]: With dead ends: 1060 [2024-11-22 12:32:20,236 INFO L226 Difference]: Without dead ends: 529 [2024-11-22 12:32:20,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:20,237 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:20,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 458 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:32:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-22 12:32:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 525. [2024-11-22 12:32:20,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 444 states have (on average 1.2454954954954955) internal successors, (553), 448 states have internal predecessors, (553), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 677 transitions. [2024-11-22 12:32:20,272 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 677 transitions. Word has length 135 [2024-11-22 12:32:20,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:20,273 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 677 transitions. [2024-11-22 12:32:20,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:20,273 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 677 transitions. [2024-11-22 12:32:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:20,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:20,275 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:20,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:32:20,275 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:20,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-11-22 12:32:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137504597] [2024-11-22 12:32:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:20,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:20,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:20,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137504597] [2024-11-22 12:32:20,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137504597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:20,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:20,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:32:20,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289703904] [2024-11-22 12:32:20,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:20,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:32:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:20,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:32:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:32:20,993 INFO L87 Difference]: Start difference. First operand 525 states and 677 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:32:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:21,541 INFO L93 Difference]: Finished difference Result 1601 states and 2045 transitions. [2024-11-22 12:32:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:32:21,542 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-22 12:32:21,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:21,547 INFO L225 Difference]: With dead ends: 1601 [2024-11-22 12:32:21,547 INFO L226 Difference]: Without dead ends: 1079 [2024-11-22 12:32:21,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:32:21,549 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 325 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:21,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 981 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:32:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-22 12:32:21,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 619. [2024-11-22 12:32:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 538 states have (on average 1.258364312267658) internal successors, (677), 542 states have internal predecessors, (677), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 801 transitions. [2024-11-22 12:32:21,587 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 801 transitions. Word has length 139 [2024-11-22 12:32:21,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:21,587 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 801 transitions. [2024-11-22 12:32:21,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:32:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 801 transitions. [2024-11-22 12:32:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:21,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:21,589 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:21,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:32:21,589 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:21,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-11-22 12:32:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:21,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540458827] [2024-11-22 12:32:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:21,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:22,268 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:22,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:22,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540458827] [2024-11-22 12:32:22,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540458827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:22,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:22,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:32:22,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582572503] [2024-11-22 12:32:22,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:22,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:32:22,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:22,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:32:22,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:32:22,272 INFO L87 Difference]: Start difference. First operand 619 states and 801 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:22,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:22,702 INFO L93 Difference]: Finished difference Result 1503 states and 1934 transitions. [2024-11-22 12:32:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:32:22,703 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:32:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:22,706 INFO L225 Difference]: With dead ends: 1503 [2024-11-22 12:32:22,706 INFO L226 Difference]: Without dead ends: 887 [2024-11-22 12:32:22,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:32:22,708 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 66 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:22,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1145 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:32:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-22 12:32:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 729. [2024-11-22 12:32:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 648 states have (on average 1.2546296296296295) internal successors, (813), 652 states have internal predecessors, (813), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:22,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 937 transitions. [2024-11-22 12:32:22,743 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 937 transitions. Word has length 139 [2024-11-22 12:32:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:22,744 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 937 transitions. [2024-11-22 12:32:22,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 937 transitions. [2024-11-22 12:32:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:22,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:22,746 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:22,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:32:22,746 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:22,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:22,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-11-22 12:32:22,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:22,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162667897] [2024-11-22 12:32:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:22,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:22,964 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:22,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:22,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162667897] [2024-11-22 12:32:22,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162667897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:22,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:22,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024599668] [2024-11-22 12:32:22,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:22,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:22,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:22,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:22,967 INFO L87 Difference]: Start difference. First operand 729 states and 937 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:23,065 INFO L93 Difference]: Finished difference Result 1576 states and 2029 transitions. [2024-11-22 12:32:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:23,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-22 12:32:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:23,068 INFO L225 Difference]: With dead ends: 1576 [2024-11-22 12:32:23,069 INFO L226 Difference]: Without dead ends: 850 [2024-11-22 12:32:23,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:23,070 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 103 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:23,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 459 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:23,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-22 12:32:23,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 762. [2024-11-22 12:32:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 681 states have (on average 1.2555066079295154) internal successors, (855), 685 states have internal predecessors, (855), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 979 transitions. [2024-11-22 12:32:23,105 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 979 transitions. Word has length 139 [2024-11-22 12:32:23,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:23,106 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 979 transitions. [2024-11-22 12:32:23,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 979 transitions. [2024-11-22 12:32:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:23,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:23,107 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:23,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:32:23,108 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:23,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:23,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-11-22 12:32:23,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:23,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402841324] [2024-11-22 12:32:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-22 12:32:23,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:23,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402841324] [2024-11-22 12:32:23,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402841324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:32:23,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138182433] [2024-11-22 12:32:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:23,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:32:23,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:32:23,234 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) [2024-11-22 12:32:23,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:32:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:23,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 12:32:23,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:32:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:23,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:32:23,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138182433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:23,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:32:23,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-22 12:32:23,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726013031] [2024-11-22 12:32:23,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:23,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:23,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:23,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:23,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:32:23,433 INFO L87 Difference]: Start difference. First operand 762 states and 979 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:23,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:23,488 INFO L93 Difference]: Finished difference Result 1542 states and 1982 transitions. [2024-11-22 12:32:23,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:23,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:32:23,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:23,491 INFO L225 Difference]: With dead ends: 1542 [2024-11-22 12:32:23,491 INFO L226 Difference]: Without dead ends: 783 [2024-11-22 12:32:23,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:32:23,493 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:23,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:32:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-22 12:32:23,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 771. [2024-11-22 12:32:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 690 states have (on average 1.2521739130434784) internal successors, (864), 694 states have internal predecessors, (864), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 988 transitions. [2024-11-22 12:32:23,526 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 988 transitions. Word has length 139 [2024-11-22 12:32:23,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:23,527 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 988 transitions. [2024-11-22 12:32:23,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:23,527 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 988 transitions. [2024-11-22 12:32:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:23,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:23,528 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:23,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:32:23,728 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,SelfDestructingSolverStorable16 [2024-11-22 12:32:23,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:23,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:23,730 INFO L85 PathProgramCache]: Analyzing trace with hash -349563115, now seen corresponding path program 1 times [2024-11-22 12:32:23,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:23,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696150685] [2024-11-22 12:32:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:23,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:24,026 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:24,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:24,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696150685] [2024-11-22 12:32:24,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696150685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:24,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:24,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:24,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68161715] [2024-11-22 12:32:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:24,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:24,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:24,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:24,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:24,028 INFO L87 Difference]: Start difference. First operand 771 states and 988 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:24,206 INFO L93 Difference]: Finished difference Result 1703 states and 2170 transitions. [2024-11-22 12:32:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:24,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:32:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:24,210 INFO L225 Difference]: With dead ends: 1703 [2024-11-22 12:32:24,210 INFO L226 Difference]: Without dead ends: 935 [2024-11-22 12:32:24,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:24,212 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 61 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:24,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 462 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-22 12:32:24,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 728. [2024-11-22 12:32:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 647 states have (on average 1.2457496136012365) internal successors, (806), 651 states have internal predecessors, (806), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 930 transitions. [2024-11-22 12:32:24,243 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 930 transitions. Word has length 139 [2024-11-22 12:32:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:24,244 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 930 transitions. [2024-11-22 12:32:24,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 930 transitions. [2024-11-22 12:32:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:24,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:24,245 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:24,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:32:24,246 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:24,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:24,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-11-22 12:32:24,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:24,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266591330] [2024-11-22 12:32:24,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:24,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:24,872 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:24,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:24,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266591330] [2024-11-22 12:32:24,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266591330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:24,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:24,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:32:24,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744263253] [2024-11-22 12:32:24,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:24,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:32:24,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:24,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:32:24,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:32:24,874 INFO L87 Difference]: Start difference. First operand 728 states and 930 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:25,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:25,448 INFO L93 Difference]: Finished difference Result 2038 states and 2582 transitions. [2024-11-22 12:32:25,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:32:25,448 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-22 12:32:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:25,453 INFO L225 Difference]: With dead ends: 2038 [2024-11-22 12:32:25,453 INFO L226 Difference]: Without dead ends: 1313 [2024-11-22 12:32:25,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:32:25,455 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 326 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:25,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1275 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:32:25,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-11-22 12:32:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 823. [2024-11-22 12:32:25,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 742 states have (on average 1.2547169811320755) internal successors, (931), 746 states have internal predecessors, (931), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1055 transitions. [2024-11-22 12:32:25,494 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1055 transitions. Word has length 139 [2024-11-22 12:32:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:25,496 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1055 transitions. [2024-11-22 12:32:25,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1055 transitions. [2024-11-22 12:32:25,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:25,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:25,498 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:25,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:32:25,498 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:25,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:25,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1811587497, now seen corresponding path program 1 times [2024-11-22 12:32:25,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:25,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705605528] [2024-11-22 12:32:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:25,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:25,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:25,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705605528] [2024-11-22 12:32:25,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705605528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:25,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:25,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:32:25,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422455708] [2024-11-22 12:32:25,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:25,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:32:25,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:25,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:32:25,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:25,825 INFO L87 Difference]: Start difference. First operand 823 states and 1055 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:26,061 INFO L93 Difference]: Finished difference Result 1865 states and 2381 transitions. [2024-11-22 12:32:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:32:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-22 12:32:26,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:26,065 INFO L225 Difference]: With dead ends: 1865 [2024-11-22 12:32:26,065 INFO L226 Difference]: Without dead ends: 1044 [2024-11-22 12:32:26,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:32:26,067 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 59 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:26,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 768 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:26,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-22 12:32:26,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 910. [2024-11-22 12:32:26,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 829 states have (on average 1.253317249698432) internal successors, (1039), 833 states have internal predecessors, (1039), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1163 transitions. [2024-11-22 12:32:26,109 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1163 transitions. Word has length 139 [2024-11-22 12:32:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:26,110 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1163 transitions. [2024-11-22 12:32:26,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:26,110 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1163 transitions. [2024-11-22 12:32:26,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:26,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:26,112 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:26,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:32:26,112 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:26,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-11-22 12:32:26,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:26,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025786865] [2024-11-22 12:32:26,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:26,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-22 12:32:26,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:26,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025786865] [2024-11-22 12:32:26,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025786865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:32:26,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446671096] [2024-11-22 12:32:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:26,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:32:26,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:32:26,389 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) [2024-11-22 12:32:26,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:32:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:26,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 12:32:26,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:32:26,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-22 12:32:26,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-22 12:32:26,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-22 12:32:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 268 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-22 12:32:26,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:32:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-22 12:32:26,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446671096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:32:26,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:32:26,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-22 12:32:26,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617656149] [2024-11-22 12:32:26,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:32:26,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:32:26,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:26,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:32:26,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:32:26,851 INFO L87 Difference]: Start difference. First operand 910 states and 1163 transitions. Second operand has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-22 12:32:27,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:27,140 INFO L93 Difference]: Finished difference Result 1669 states and 2117 transitions. [2024-11-22 12:32:27,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:32:27,141 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) Word has length 139 [2024-11-22 12:32:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:27,144 INFO L225 Difference]: With dead ends: 1669 [2024-11-22 12:32:27,144 INFO L226 Difference]: Without dead ends: 762 [2024-11-22 12:32:27,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:32:27,146 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 141 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:27,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 354 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:32:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-22 12:32:27,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 734. [2024-11-22 12:32:27,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 649 states have (on average 1.234206471494607) internal successors, (801), 653 states have internal predecessors, (801), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 925 transitions. [2024-11-22 12:32:27,178 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 925 transitions. Word has length 139 [2024-11-22 12:32:27,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:27,178 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 925 transitions. [2024-11-22 12:32:27,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-22 12:32:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 925 transitions. [2024-11-22 12:32:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:27,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:27,180 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:27,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 12:32:27,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:32:27,381 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:27,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:27,381 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-11-22 12:32:27,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:27,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675206745] [2024-11-22 12:32:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:27,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:29,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:29,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675206745] [2024-11-22 12:32:29,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675206745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:29,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:29,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-22 12:32:29,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231545621] [2024-11-22 12:32:29,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:29,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 12:32:29,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 12:32:29,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-22 12:32:29,164 INFO L87 Difference]: Start difference. First operand 734 states and 925 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-22 12:32:31,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:31,396 INFO L93 Difference]: Finished difference Result 1859 states and 2329 transitions. [2024-11-22 12:32:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 12:32:31,397 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 139 [2024-11-22 12:32:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:31,401 INFO L225 Difference]: With dead ends: 1859 [2024-11-22 12:32:31,401 INFO L226 Difference]: Without dead ends: 1128 [2024-11-22 12:32:31,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 12:32:31,403 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 969 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:31,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 867 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 12:32:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-11-22 12:32:31,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 817. [2024-11-22 12:32:31,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 720 states have (on average 1.2319444444444445) internal successors, (887), 726 states have internal predecessors, (887), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:32:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1027 transitions. [2024-11-22 12:32:31,484 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1027 transitions. Word has length 139 [2024-11-22 12:32:31,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:31,484 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1027 transitions. [2024-11-22 12:32:31,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-22 12:32:31,485 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1027 transitions. [2024-11-22 12:32:31,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:31,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:31,486 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:31,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:32:31,487 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:31,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash 82304827, now seen corresponding path program 1 times [2024-11-22 12:32:31,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:31,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314840860] [2024-11-22 12:32:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:31,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:32,123 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:32,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:32,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314840860] [2024-11-22 12:32:32,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314840860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:32,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:32,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:32:32,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145343456] [2024-11-22 12:32:32,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:32,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:32:32,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:32,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:32:32,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:32:32,125 INFO L87 Difference]: Start difference. First operand 817 states and 1027 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:32,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:32,661 INFO L93 Difference]: Finished difference Result 1887 states and 2361 transitions. [2024-11-22 12:32:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:32:32,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-22 12:32:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:32,665 INFO L225 Difference]: With dead ends: 1887 [2024-11-22 12:32:32,665 INFO L226 Difference]: Without dead ends: 1073 [2024-11-22 12:32:32,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:32:32,666 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 351 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:32,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 489 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:32:32,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-22 12:32:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 816. [2024-11-22 12:32:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 719 states have (on average 1.2308762169680112) internal successors, (885), 725 states have internal predecessors, (885), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:32:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1025 transitions. [2024-11-22 12:32:32,715 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1025 transitions. Word has length 139 [2024-11-22 12:32:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:32,715 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1025 transitions. [2024-11-22 12:32:32,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1025 transitions. [2024-11-22 12:32:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:32:32,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:32,716 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:32,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:32:32,717 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:32,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:32,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-11-22 12:32:32,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:32,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796893120] [2024-11-22 12:32:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:32,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:32,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:32,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796893120] [2024-11-22 12:32:32,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796893120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:32,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:32,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:32:32,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837446410] [2024-11-22 12:32:32,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:32,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:32:32,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:32:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:32,918 INFO L87 Difference]: Start difference. First operand 816 states and 1025 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:33,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:33,101 INFO L93 Difference]: Finished difference Result 1798 states and 2254 transitions. [2024-11-22 12:32:33,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:32:33,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:32:33,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:33,105 INFO L225 Difference]: With dead ends: 1798 [2024-11-22 12:32:33,105 INFO L226 Difference]: Without dead ends: 985 [2024-11-22 12:32:33,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:32:33,107 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 55 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:33,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 847 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-22 12:32:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 856. [2024-11-22 12:32:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 759 states have (on average 1.2371541501976284) internal successors, (939), 765 states have internal predecessors, (939), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:32:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1079 transitions. [2024-11-22 12:32:33,156 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1079 transitions. Word has length 139 [2024-11-22 12:32:33,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:33,156 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1079 transitions. [2024-11-22 12:32:33,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1079 transitions. [2024-11-22 12:32:33,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 12:32:33,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:33,158 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:33,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 12:32:33,158 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:33,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:33,158 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-11-22 12:32:33,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:33,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257886814] [2024-11-22 12:32:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:33,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:33,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257886814] [2024-11-22 12:32:33,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257886814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:33,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:33,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:33,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444701166] [2024-11-22 12:32:33,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:33,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:33,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:33,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:33,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:33,768 INFO L87 Difference]: Start difference. First operand 856 states and 1079 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:34,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:34,134 INFO L93 Difference]: Finished difference Result 1772 states and 2225 transitions. [2024-11-22 12:32:34,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:34,135 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), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-22 12:32:34,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:34,139 INFO L225 Difference]: With dead ends: 1772 [2024-11-22 12:32:34,139 INFO L226 Difference]: Without dead ends: 919 [2024-11-22 12:32:34,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:34,141 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 135 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:34,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 305 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:32:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-22 12:32:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 787. [2024-11-22 12:32:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 700 states have (on average 1.2314285714285715) internal successors, (862), 704 states have internal predecessors, (862), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:32:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 986 transitions. [2024-11-22 12:32:34,193 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 986 transitions. Word has length 140 [2024-11-22 12:32:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:34,193 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 986 transitions. [2024-11-22 12:32:34,193 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), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 986 transitions. [2024-11-22 12:32:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 12:32:34,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:34,195 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:34,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 12:32:34,195 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:34,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-11-22 12:32:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:34,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437639577] [2024-11-22 12:32:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:34,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:34,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:34,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437639577] [2024-11-22 12:32:34,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437639577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:34,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:34,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:32:34,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041778851] [2024-11-22 12:32:34,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:34,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:32:34,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:34,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:32:34,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:32:34,504 INFO L87 Difference]: Start difference. First operand 787 states and 986 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:34,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:34,734 INFO L93 Difference]: Finished difference Result 1263 states and 1541 transitions. [2024-11-22 12:32:34,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:32:34,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-22 12:32:34,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:34,739 INFO L225 Difference]: With dead ends: 1263 [2024-11-22 12:32:34,739 INFO L226 Difference]: Without dead ends: 1261 [2024-11-22 12:32:34,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:32:34,740 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 68 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:34,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1025 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:34,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-22 12:32:34,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1257. [2024-11-22 12:32:34,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1094 states have (on average 1.1910420475319927) internal successors, (1303), 1104 states have internal predecessors, (1303), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-22 12:32:34,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1531 transitions. [2024-11-22 12:32:34,838 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1531 transitions. Word has length 141 [2024-11-22 12:32:34,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:34,838 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1531 transitions. [2024-11-22 12:32:34,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:34,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1531 transitions. [2024-11-22 12:32:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 12:32:34,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:34,840 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:34,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 12:32:34,840 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:34,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:34,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-11-22 12:32:34,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:34,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599041017] [2024-11-22 12:32:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:34,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:35,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:35,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599041017] [2024-11-22 12:32:35,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599041017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:35,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:35,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:35,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695658441] [2024-11-22 12:32:35,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:35,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:35,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:35,089 INFO L87 Difference]: Start difference. First operand 1257 states and 1531 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:35,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:35,279 INFO L93 Difference]: Finished difference Result 2767 states and 3367 transitions. [2024-11-22 12:32:35,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:35,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-22 12:32:35,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:35,284 INFO L225 Difference]: With dead ends: 2767 [2024-11-22 12:32:35,285 INFO L226 Difference]: Without dead ends: 1513 [2024-11-22 12:32:35,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:35,287 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 46 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:35,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 704 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:35,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-22 12:32:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1403. [2024-11-22 12:32:35,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1240 states have (on average 1.1870967741935483) internal successors, (1472), 1250 states have internal predecessors, (1472), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-22 12:32:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1700 transitions. [2024-11-22 12:32:35,385 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1700 transitions. Word has length 141 [2024-11-22 12:32:35,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:35,385 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1700 transitions. [2024-11-22 12:32:35,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1700 transitions. [2024-11-22 12:32:35,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 12:32:35,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:35,387 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:35,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 12:32:35,387 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:35,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:35,389 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-11-22 12:32:35,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:35,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800057512] [2024-11-22 12:32:35,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:35,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:35,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:35,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800057512] [2024-11-22 12:32:35,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800057512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:35,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:35,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:35,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293183732] [2024-11-22 12:32:35,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:35,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:35,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:35,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:35,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:35,948 INFO L87 Difference]: Start difference. First operand 1403 states and 1700 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:36,479 INFO L93 Difference]: Finished difference Result 2996 states and 3604 transitions. [2024-11-22 12:32:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:36,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-22 12:32:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:36,485 INFO L225 Difference]: With dead ends: 2996 [2024-11-22 12:32:36,485 INFO L226 Difference]: Without dead ends: 1596 [2024-11-22 12:32:36,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:36,487 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 48 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:36,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 473 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:32:36,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-22 12:32:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1322. [2024-11-22 12:32:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1159 states have (on average 1.1544434857635892) internal successors, (1338), 1169 states have internal predecessors, (1338), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-22 12:32:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1566 transitions. [2024-11-22 12:32:36,591 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1566 transitions. Word has length 142 [2024-11-22 12:32:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:36,591 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1566 transitions. [2024-11-22 12:32:36,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1566 transitions. [2024-11-22 12:32:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 12:32:36,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:36,593 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:36,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 12:32:36,593 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:36,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:36,593 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-11-22 12:32:36,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:36,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800318419] [2024-11-22 12:32:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:36,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:36,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:36,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800318419] [2024-11-22 12:32:36,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800318419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:36,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:36,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:36,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104181684] [2024-11-22 12:32:36,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:36,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:36,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:36,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:36,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:36,780 INFO L87 Difference]: Start difference. First operand 1322 states and 1566 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:36,926 INFO L93 Difference]: Finished difference Result 2304 states and 2745 transitions. [2024-11-22 12:32:36,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:36,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-22 12:32:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:36,930 INFO L225 Difference]: With dead ends: 2304 [2024-11-22 12:32:36,930 INFO L226 Difference]: Without dead ends: 941 [2024-11-22 12:32:36,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:36,932 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:36,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 455 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:32:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-22 12:32:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2024-11-22 12:32:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 796 states have (on average 1.1457286432160805) internal successors, (912), 804 states have internal predecessors, (912), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-22 12:32:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1112 transitions. [2024-11-22 12:32:37,015 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1112 transitions. Word has length 142 [2024-11-22 12:32:37,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:37,016 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1112 transitions. [2024-11-22 12:32:37,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:37,016 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1112 transitions. [2024-11-22 12:32:37,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 12:32:37,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:37,017 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:37,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 12:32:37,017 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:37,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:37,018 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-11-22 12:32:37,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:37,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400470338] [2024-11-22 12:32:37,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:37,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:37,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:37,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400470338] [2024-11-22 12:32:37,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400470338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:37,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:37,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:37,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699412719] [2024-11-22 12:32:37,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:37,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:37,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:37,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:37,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:37,205 INFO L87 Difference]: Start difference. First operand 939 states and 1112 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:37,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:37,344 INFO L93 Difference]: Finished difference Result 1773 states and 2095 transitions. [2024-11-22 12:32:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:37,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-22 12:32:37,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:37,348 INFO L225 Difference]: With dead ends: 1773 [2024-11-22 12:32:37,348 INFO L226 Difference]: Without dead ends: 870 [2024-11-22 12:32:37,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:37,349 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 65 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:37,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 680 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:37,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-22 12:32:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 864. [2024-11-22 12:32:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 721 states have (on average 1.130374479889043) internal successors, (815), 729 states have internal predecessors, (815), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-22 12:32:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1015 transitions. [2024-11-22 12:32:37,440 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1015 transitions. Word has length 143 [2024-11-22 12:32:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:37,440 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1015 transitions. [2024-11-22 12:32:37,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:37,440 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1015 transitions. [2024-11-22 12:32:37,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:32:37,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:37,441 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:37,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 12:32:37,441 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:37,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:37,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-11-22 12:32:37,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:37,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901501638] [2024-11-22 12:32:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:37,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:37,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:37,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901501638] [2024-11-22 12:32:37,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901501638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:37,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:37,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:32:37,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112137623] [2024-11-22 12:32:37,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:37,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:32:37,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:37,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:32:37,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:37,675 INFO L87 Difference]: Start difference. First operand 864 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:37,806 INFO L93 Difference]: Finished difference Result 1650 states and 1930 transitions. [2024-11-22 12:32:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:32:37,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-22 12:32:37,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:37,810 INFO L225 Difference]: With dead ends: 1650 [2024-11-22 12:32:37,810 INFO L226 Difference]: Without dead ends: 822 [2024-11-22 12:32:37,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:32:37,812 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 65 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:37,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 444 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:32:37,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-22 12:32:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2024-11-22 12:32:37,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 679 states have (on average 1.1030927835051547) internal successors, (749), 687 states have internal predecessors, (749), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-22 12:32:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 949 transitions. [2024-11-22 12:32:37,900 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 949 transitions. Word has length 144 [2024-11-22 12:32:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:37,900 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 949 transitions. [2024-11-22 12:32:37,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:32:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 949 transitions. [2024-11-22 12:32:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:32:37,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:37,902 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:37,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 12:32:37,902 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:37,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:37,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-11-22 12:32:37,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:37,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12377053] [2024-11-22 12:32:37,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:37,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:38,514 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:38,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:38,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12377053] [2024-11-22 12:32:38,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12377053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:38,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:38,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:32:38,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744442504] [2024-11-22 12:32:38,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:38,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:32:38,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:32:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:32:38,515 INFO L87 Difference]: Start difference. First operand 822 states and 949 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:32:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:38,784 INFO L93 Difference]: Finished difference Result 1067 states and 1233 transitions. [2024-11-22 12:32:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:32:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-22 12:32:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:38,788 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 12:32:38,788 INFO L226 Difference]: Without dead ends: 1065 [2024-11-22 12:32:38,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:32:38,789 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 66 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:38,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1420 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:38,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-22 12:32:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1061. [2024-11-22 12:32:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 874 states have (on average 1.105263157894737) internal successors, (966), 885 states have internal predecessors, (966), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-22 12:32:38,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1226 transitions. [2024-11-22 12:32:38,901 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1226 transitions. Word has length 144 [2024-11-22 12:32:38,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:38,901 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1226 transitions. [2024-11-22 12:32:38,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:32:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1226 transitions. [2024-11-22 12:32:38,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:32:38,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:38,903 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:38,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 12:32:38,903 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:38,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:38,903 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-11-22 12:32:38,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:38,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977895190] [2024-11-22 12:32:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:38,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:40,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:40,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977895190] [2024-11-22 12:32:40,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977895190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:40,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:32:40,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323435741] [2024-11-22 12:32:40,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:40,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:32:40,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:40,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:32:40,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:32:40,857 INFO L87 Difference]: Start difference. First operand 1061 states and 1226 transitions. Second operand has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:32:44,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:44,576 INFO L93 Difference]: Finished difference Result 2327 states and 2692 transitions. [2024-11-22 12:32:44,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 12:32:44,577 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-22 12:32:44,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:44,581 INFO L225 Difference]: With dead ends: 2327 [2024-11-22 12:32:44,581 INFO L226 Difference]: Without dead ends: 1302 [2024-11-22 12:32:44,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:32:44,583 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 182 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:44,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1169 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-22 12:32:44,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-11-22 12:32:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1149. [2024-11-22 12:32:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 962 states have (on average 1.1143451143451144) internal successors, (1072), 973 states have internal predecessors, (1072), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-22 12:32:44,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1332 transitions. [2024-11-22 12:32:44,703 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1332 transitions. Word has length 144 [2024-11-22 12:32:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:44,703 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1332 transitions. [2024-11-22 12:32:44,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:32:44,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1332 transitions. [2024-11-22 12:32:44,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:32:44,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:44,705 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:44,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 12:32:44,705 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:44,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:44,706 INFO L85 PathProgramCache]: Analyzing trace with hash -61368391, now seen corresponding path program 1 times [2024-11-22 12:32:44,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:44,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277514976] [2024-11-22 12:32:44,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:44,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:32:44,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:32:44,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277514976] [2024-11-22 12:32:44,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277514976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:32:44,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:32:44,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:32:44,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938674730] [2024-11-22 12:32:44,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:32:44,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:32:44,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:32:44,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:32:44,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:32:44,841 INFO L87 Difference]: Start difference. First operand 1149 states and 1332 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:32:45,136 INFO L93 Difference]: Finished difference Result 2880 states and 3301 transitions. [2024-11-22 12:32:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:32:45,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-22 12:32:45,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:32:45,144 INFO L225 Difference]: With dead ends: 2880 [2024-11-22 12:32:45,144 INFO L226 Difference]: Without dead ends: 1767 [2024-11-22 12:32:45,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:32:45,147 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 48 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:32:45,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 369 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:32:45,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-22 12:32:45,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1227. [2024-11-22 12:32:45,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1040 states have (on average 1.1134615384615385) internal successors, (1158), 1051 states have internal predecessors, (1158), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-22 12:32:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1418 transitions. [2024-11-22 12:32:45,285 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1418 transitions. Word has length 144 [2024-11-22 12:32:45,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:32:45,286 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1418 transitions. [2024-11-22 12:32:45,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:32:45,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1418 transitions. [2024-11-22 12:32:45,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:32:45,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:32:45,287 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:32:45,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 12:32:45,287 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:32:45,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:32:45,288 INFO L85 PathProgramCache]: Analyzing trace with hash -886480517, now seen corresponding path program 1 times [2024-11-22 12:32:45,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:32:45,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144626614] [2024-11-22 12:32:45,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:32:45,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:32:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:32:49,833 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete