./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 14:40:13,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 14:40:13,795 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 14:40:13,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 14:40:13,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 14:40:13,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 14:40:13,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 14:40:13,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 14:40:13,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 14:40:13,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 14:40:13,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 14:40:13,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 14:40:13,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 14:40:13,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 14:40:13,822 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 14:40:13,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 14:40:13,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 14:40:13,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 14:40:13,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 14:40:13,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 14:40:13,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 14:40:13,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 14:40:13,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 14:40:13,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 14:40:13,825 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 14:40:13,825 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 14:40:13,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 14:40:13,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 14:40:13,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 14:40:13,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 14:40:13,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 14:40:13,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 14:40:13,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 14:40:13,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 14:40:13,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 14:40:13,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 14:40:13,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 14:40:13,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 14:40:13,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 14:40:13,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 14:40:13,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 14:40:13,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 14:40:13,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2024-10-24 14:40:14,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 14:40:14,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 14:40:14,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 14:40:14,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 14:40:14,083 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 14:40:14,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2024-10-24 14:40:15,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 14:40:15,811 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 14:40:15,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2024-10-24 14:40:15,832 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d71801a/8608cbf774824f9ba6f4d883745ab1fc/FLAG3da7297ac [2024-10-24 14:40:15,845 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d71801a/8608cbf774824f9ba6f4d883745ab1fc [2024-10-24 14:40:15,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 14:40:15,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 14:40:15,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 14:40:15,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 14:40:15,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 14:40:15,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:40:15" (1/1) ... [2024-10-24 14:40:15,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c53b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:15, skipping insertion in model container [2024-10-24 14:40:15,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:40:15" (1/1) ... [2024-10-24 14:40:15,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 14:40:16,233 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i[33519,33532] [2024-10-24 14:40:16,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 14:40:16,342 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 14:40:16,368 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i[33519,33532] [2024-10-24 14:40:16,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 14:40:16,450 INFO L204 MainTranslator]: Completed translation [2024-10-24 14:40:16,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16 WrapperNode [2024-10-24 14:40:16,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 14:40:16,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 14:40:16,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 14:40:16,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 14:40:16,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,563 INFO L138 Inliner]: procedures = 176, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2024-10-24 14:40:16,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 14:40:16,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 14:40:16,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 14:40:16,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 14:40:16,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,590 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,655 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [2, 307]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 82 writes are split as follows [0, 82]. [2024-10-24 14:40:16,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 14:40:16,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 14:40:16,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 14:40:16,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 14:40:16,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (1/1) ... [2024-10-24 14:40:16,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 14:40:16,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 14:40:16,789 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) [2024-10-24 14:40:16,792 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 [2024-10-24 14:40:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 14:40:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 14:40:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 14:40:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 14:40:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-24 14:40:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-24 14:40:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-24 14:40:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-24 14:40:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 14:40:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 14:40:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 14:40:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 14:40:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 14:40:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 14:40:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 14:40:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 14:40:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 14:40:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 14:40:16,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 14:40:17,011 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 14:40:17,013 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 14:40:18,413 INFO L? ?]: Removed 377 outVars from TransFormulas that were not future-live. [2024-10-24 14:40:18,413 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 14:40:18,444 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 14:40:18,445 INFO L314 CfgBuilder]: Removed 60 assume(true) statements. [2024-10-24 14:40:18,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:40:18 BoogieIcfgContainer [2024-10-24 14:40:18,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 14:40:18,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 14:40:18,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 14:40:18,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 14:40:18,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:40:15" (1/3) ... [2024-10-24 14:40:18,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc5ee9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:40:18, skipping insertion in model container [2024-10-24 14:40:18,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:40:16" (2/3) ... [2024-10-24 14:40:18,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc5ee9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:40:18, skipping insertion in model container [2024-10-24 14:40:18,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:40:18" (3/3) ... [2024-10-24 14:40:18,452 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-1.i [2024-10-24 14:40:18,465 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 14:40:18,466 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 14:40:18,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 14:40:18,550 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;@12b2d1fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 14:40:18,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 14:40:18,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 391 states have (on average 1.618925831202046) internal successors, (633), 392 states have internal predecessors, (633), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 14:40:18,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-24 14:40:18,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:18,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:18,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:18,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:18,570 INFO L85 PathProgramCache]: Analyzing trace with hash 578279986, now seen corresponding path program 1 times [2024-10-24 14:40:18,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:18,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128304984] [2024-10-24 14:40:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:18,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:40:18,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:18,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128304984] [2024-10-24 14:40:18,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128304984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:18,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:18,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 14:40:18,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033375749] [2024-10-24 14:40:18,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:18,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:40:18,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:40:18,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:40:18,817 INFO L87 Difference]: Start difference. First operand has 400 states, 391 states have (on average 1.618925831202046) internal successors, (633), 392 states have internal predecessors, (633), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 14:40:19,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:19,243 INFO L93 Difference]: Finished difference Result 1121 states and 1812 transitions. [2024-10-24 14:40:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 14:40:19,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-24 14:40:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:19,256 INFO L225 Difference]: With dead ends: 1121 [2024-10-24 14:40:19,256 INFO L226 Difference]: Without dead ends: 717 [2024-10-24 14:40:19,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:40:19,262 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 467 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:19,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1642 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:40:19,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-10-24 14:40:19,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2024-10-24 14:40:19,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 706 states have (on average 1.4560906515580736) internal successors, (1028), 706 states have internal predecessors, (1028), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1046 transitions. [2024-10-24 14:40:19,333 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1046 transitions. Word has length 9 [2024-10-24 14:40:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:19,334 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1046 transitions. [2024-10-24 14:40:19,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 14:40:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1046 transitions. [2024-10-24 14:40:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 14:40:19,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:19,340 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:19,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 14:40:19,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:19,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash 447078271, now seen corresponding path program 1 times [2024-10-24 14:40:19,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696605355] [2024-10-24 14:40:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:19,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:19,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 14:40:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:19,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 14:40:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 14:40:19,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:19,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696605355] [2024-10-24 14:40:19,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696605355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:19,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:19,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 14:40:19,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064240054] [2024-10-24 14:40:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:19,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 14:40:19,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 14:40:19,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 14:40:19,938 INFO L87 Difference]: Start difference. First operand 717 states and 1046 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 14:40:20,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:20,340 INFO L93 Difference]: Finished difference Result 1383 states and 2021 transitions. [2024-10-24 14:40:20,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 14:40:20,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-24 14:40:20,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:20,345 INFO L225 Difference]: With dead ends: 1383 [2024-10-24 14:40:20,345 INFO L226 Difference]: Without dead ends: 725 [2024-10-24 14:40:20,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 14:40:20,348 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 107 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:20,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1975 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:40:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-10-24 14:40:20,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 717. [2024-10-24 14:40:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 706 states have (on average 1.4362606232294617) internal successors, (1014), 706 states have internal predecessors, (1014), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1032 transitions. [2024-10-24 14:40:20,369 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1032 transitions. Word has length 168 [2024-10-24 14:40:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:20,369 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1032 transitions. [2024-10-24 14:40:20,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 14:40:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1032 transitions. [2024-10-24 14:40:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 14:40:20,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:20,372 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:20,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 14:40:20,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:20,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1383855757, now seen corresponding path program 1 times [2024-10-24 14:40:20,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:20,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009336956] [2024-10-24 14:40:20,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:20,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:20,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 14:40:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:20,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 14:40:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 14:40:20,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:20,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009336956] [2024-10-24 14:40:20,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009336956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:20,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:20,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 14:40:20,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97833385] [2024-10-24 14:40:20,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:20,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:40:20,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:20,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:40:20,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:40:20,672 INFO L87 Difference]: Start difference. First operand 717 states and 1032 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 14:40:20,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:20,972 INFO L93 Difference]: Finished difference Result 1373 states and 1988 transitions. [2024-10-24 14:40:20,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 14:40:20,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-24 14:40:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:20,976 INFO L225 Difference]: With dead ends: 1373 [2024-10-24 14:40:20,976 INFO L226 Difference]: Without dead ends: 731 [2024-10-24 14:40:20,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:40:20,978 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 3 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:20,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1551 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:40:20,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-10-24 14:40:20,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 729. [2024-10-24 14:40:20,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.4289693593314763) internal successors, (1026), 718 states have internal predecessors, (1026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1044 transitions. [2024-10-24 14:40:20,995 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1044 transitions. Word has length 168 [2024-10-24 14:40:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:20,996 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1044 transitions. [2024-10-24 14:40:20,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 14:40:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1044 transitions. [2024-10-24 14:40:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 14:40:20,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:20,998 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:20,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 14:40:20,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:20,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:20,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1794466123, now seen corresponding path program 1 times [2024-10-24 14:40:20,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:20,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010499688] [2024-10-24 14:40:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:21,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 14:40:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:21,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 14:40:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 14:40:21,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:21,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010499688] [2024-10-24 14:40:21,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010499688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:21,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:21,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 14:40:21,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285817240] [2024-10-24 14:40:21,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:21,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:40:21,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:21,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:40:21,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:40:21,168 INFO L87 Difference]: Start difference. First operand 729 states and 1044 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 14:40:21,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:21,644 INFO L93 Difference]: Finished difference Result 1311 states and 1888 transitions. [2024-10-24 14:40:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 14:40:21,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-24 14:40:21,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:21,649 INFO L225 Difference]: With dead ends: 1311 [2024-10-24 14:40:21,649 INFO L226 Difference]: Without dead ends: 729 [2024-10-24 14:40:21,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:40:21,652 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 136 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:21,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1578 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:40:21,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-10-24 14:40:21,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 727. [2024-10-24 14:40:21,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 716 states have (on average 1.4287709497206704) internal successors, (1023), 716 states have internal predecessors, (1023), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1041 transitions. [2024-10-24 14:40:21,681 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1041 transitions. Word has length 168 [2024-10-24 14:40:21,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:21,682 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1041 transitions. [2024-10-24 14:40:21,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 14:40:21,682 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1041 transitions. [2024-10-24 14:40:21,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-24 14:40:21,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:21,685 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:21,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 14:40:21,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:21,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:21,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1608322837, now seen corresponding path program 1 times [2024-10-24 14:40:21,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:21,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32332277] [2024-10-24 14:40:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:21,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:22,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 14:40:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:22,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 14:40:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:22,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-24 14:40:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:22,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 14:40:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 14:40:22,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:22,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32332277] [2024-10-24 14:40:22,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32332277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:22,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:22,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 14:40:22,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432278664] [2024-10-24 14:40:22,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:22,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 14:40:22,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:22,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 14:40:22,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 14:40:22,064 INFO L87 Difference]: Start difference. First operand 727 states and 1041 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:22,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:22,377 INFO L93 Difference]: Finished difference Result 1170 states and 1680 transitions. [2024-10-24 14:40:22,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 14:40:22,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 181 [2024-10-24 14:40:22,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:22,380 INFO L225 Difference]: With dead ends: 1170 [2024-10-24 14:40:22,380 INFO L226 Difference]: Without dead ends: 645 [2024-10-24 14:40:22,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 14:40:22,381 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 32 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:22,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1732 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:40:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-10-24 14:40:22,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 643. [2024-10-24 14:40:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 632 states have (on average 1.375) internal successors, (869), 632 states have internal predecessors, (869), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 887 transitions. [2024-10-24 14:40:22,396 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 887 transitions. Word has length 181 [2024-10-24 14:40:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:22,397 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 887 transitions. [2024-10-24 14:40:22,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:22,397 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 887 transitions. [2024-10-24 14:40:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-24 14:40:22,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:22,399 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:22,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 14:40:22,399 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:22,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:22,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1710071927, now seen corresponding path program 1 times [2024-10-24 14:40:22,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:22,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393209433] [2024-10-24 14:40:22,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:22,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:23,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 14:40:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:23,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 14:40:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:23,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-24 14:40:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:23,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 14:40:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:23,402 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 14:40:23,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:23,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393209433] [2024-10-24 14:40:23,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393209433] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 14:40:23,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348465434] [2024-10-24 14:40:23,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:23,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 14:40:23,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 14:40:23,409 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) [2024-10-24 14:40:23,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 14:40:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:23,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-24 14:40:23,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 14:40:23,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-10-24 14:40:24,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 14:40:24,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 43 [2024-10-24 14:40:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 14:40:24,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 14:40:24,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348465434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:24,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 14:40:24,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-10-24 14:40:24,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373048514] [2024-10-24 14:40:24,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:24,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 14:40:24,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:24,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 14:40:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-10-24 14:40:24,261 INFO L87 Difference]: Start difference. First operand 643 states and 887 transitions. Second operand has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 11 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:26,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:26,155 INFO L93 Difference]: Finished difference Result 1298 states and 1779 transitions. [2024-10-24 14:40:26,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 14:40:26,156 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 11 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 181 [2024-10-24 14:40:26,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:26,159 INFO L225 Difference]: With dead ends: 1298 [2024-10-24 14:40:26,159 INFO L226 Difference]: Without dead ends: 746 [2024-10-24 14:40:26,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-10-24 14:40:26,160 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 729 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:26,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 2783 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 14:40:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-10-24 14:40:26,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 675. [2024-10-24 14:40:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 664 states have (on average 1.3644578313253013) internal successors, (906), 664 states have internal predecessors, (906), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 924 transitions. [2024-10-24 14:40:26,178 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 924 transitions. Word has length 181 [2024-10-24 14:40:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:26,178 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 924 transitions. [2024-10-24 14:40:26,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 11 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 924 transitions. [2024-10-24 14:40:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-24 14:40:26,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:26,181 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:26,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 14:40:26,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 14:40:26,385 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:26,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:26,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2054900089, now seen corresponding path program 1 times [2024-10-24 14:40:26,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411639946] [2024-10-24 14:40:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:26,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 14:40:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:26,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 14:40:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:26,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-24 14:40:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:26,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 14:40:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 14:40:26,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:26,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411639946] [2024-10-24 14:40:26,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411639946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:26,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:26,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 14:40:26,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867090499] [2024-10-24 14:40:26,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:26,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 14:40:26,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:26,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 14:40:26,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 14:40:26,628 INFO L87 Difference]: Start difference. First operand 675 states and 924 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:27,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:27,270 INFO L93 Difference]: Finished difference Result 1181 states and 1620 transitions. [2024-10-24 14:40:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 14:40:27,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 181 [2024-10-24 14:40:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:27,274 INFO L225 Difference]: With dead ends: 1181 [2024-10-24 14:40:27,275 INFO L226 Difference]: Without dead ends: 537 [2024-10-24 14:40:27,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 14:40:27,276 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 11 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:27,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1429 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 14:40:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-10-24 14:40:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 535. [2024-10-24 14:40:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 524 states have (on average 1.3282442748091603) internal successors, (696), 524 states have internal predecessors, (696), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:27,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 714 transitions. [2024-10-24 14:40:27,292 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 714 transitions. Word has length 181 [2024-10-24 14:40:27,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:27,292 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 714 transitions. [2024-10-24 14:40:27,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 714 transitions. [2024-10-24 14:40:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-24 14:40:27,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:27,295 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:27,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 14:40:27,296 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:27,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1596062169, now seen corresponding path program 1 times [2024-10-24 14:40:27,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:27,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697679471] [2024-10-24 14:40:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:27,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:27,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 14:40:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:27,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 14:40:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:27,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 14:40:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:27,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 14:40:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 14:40:27,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:27,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697679471] [2024-10-24 14:40:27,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697679471] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 14:40:27,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157214812] [2024-10-24 14:40:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:27,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 14:40:27,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 14:40:27,946 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) [2024-10-24 14:40:27,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 14:40:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:28,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 14:40:28,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 14:40:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 14:40:28,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 14:40:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157214812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:28,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 14:40:28,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-10-24 14:40:28,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204139300] [2024-10-24 14:40:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:28,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:40:28,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:40:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:40:28,447 INFO L87 Difference]: Start difference. First operand 535 states and 714 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:28,553 INFO L93 Difference]: Finished difference Result 1033 states and 1389 transitions. [2024-10-24 14:40:28,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 14:40:28,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 182 [2024-10-24 14:40:28,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:28,556 INFO L225 Difference]: With dead ends: 1033 [2024-10-24 14:40:28,556 INFO L226 Difference]: Without dead ends: 535 [2024-10-24 14:40:28,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:40:28,557 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 13 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:28,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1047 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 14:40:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-10-24 14:40:28,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-10-24 14:40:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 524 states have (on average 1.3244274809160306) internal successors, (694), 524 states have internal predecessors, (694), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 712 transitions. [2024-10-24 14:40:28,567 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 712 transitions. Word has length 182 [2024-10-24 14:40:28,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:28,567 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 712 transitions. [2024-10-24 14:40:28,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 712 transitions. [2024-10-24 14:40:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-24 14:40:28,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:28,569 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:28,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 14:40:28,769 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,SelfDestructingSolverStorable7 [2024-10-24 14:40:28,770 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:28,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1668622766, now seen corresponding path program 1 times [2024-10-24 14:40:28,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:28,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710455184] [2024-10-24 14:40:28,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:28,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:29,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 14:40:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:29,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 14:40:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:29,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 14:40:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:29,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 14:40:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 14:40:29,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:29,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710455184] [2024-10-24 14:40:29,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710455184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:29,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:29,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 14:40:29,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223200124] [2024-10-24 14:40:29,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:29,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 14:40:29,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:29,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 14:40:29,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:40:29,176 INFO L87 Difference]: Start difference. First operand 535 states and 712 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:29,553 INFO L93 Difference]: Finished difference Result 1038 states and 1402 transitions. [2024-10-24 14:40:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 14:40:29,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 183 [2024-10-24 14:40:29,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:29,555 INFO L225 Difference]: With dead ends: 1038 [2024-10-24 14:40:29,555 INFO L226 Difference]: Without dead ends: 543 [2024-10-24 14:40:29,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:40:29,558 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 6 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:29,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1652 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:40:29,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-24 14:40:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2024-10-24 14:40:29,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 530 states have (on average 1.320754716981132) internal successors, (700), 530 states have internal predecessors, (700), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 718 transitions. [2024-10-24 14:40:29,571 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 718 transitions. Word has length 183 [2024-10-24 14:40:29,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:29,571 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 718 transitions. [2024-10-24 14:40:29,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 718 transitions. [2024-10-24 14:40:29,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-24 14:40:29,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:29,573 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:29,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 14:40:29,573 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:29,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:29,573 INFO L85 PathProgramCache]: Analyzing trace with hash 849351616, now seen corresponding path program 1 times [2024-10-24 14:40:29,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:29,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952150401] [2024-10-24 14:40:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:29,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:29,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 14:40:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:30,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 14:40:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:30,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 14:40:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:30,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 14:40:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:30,008 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 14:40:30,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:30,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952150401] [2024-10-24 14:40:30,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952150401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:30,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:30,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 14:40:30,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464339055] [2024-10-24 14:40:30,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:30,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 14:40:30,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:30,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 14:40:30,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 14:40:30,012 INFO L87 Difference]: Start difference. First operand 541 states and 718 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:30,486 INFO L93 Difference]: Finished difference Result 1044 states and 1406 transitions. [2024-10-24 14:40:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 14:40:30,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2024-10-24 14:40:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:30,489 INFO L225 Difference]: With dead ends: 1044 [2024-10-24 14:40:30,489 INFO L226 Difference]: Without dead ends: 553 [2024-10-24 14:40:30,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 14:40:30,490 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 10 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:30,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2245 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 14:40:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-10-24 14:40:30,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 549. [2024-10-24 14:40:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 538 states have (on average 1.3197026022304832) internal successors, (710), 538 states have internal predecessors, (710), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 14:40:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 728 transitions. [2024-10-24 14:40:30,501 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 728 transitions. Word has length 184 [2024-10-24 14:40:30,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:30,501 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 728 transitions. [2024-10-24 14:40:30,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 14:40:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 728 transitions. [2024-10-24 14:40:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-24 14:40:30,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:30,503 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:30,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 14:40:30,503 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:30,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:30,503 INFO L85 PathProgramCache]: Analyzing trace with hash -20005212, now seen corresponding path program 1 times [2024-10-24 14:40:30,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:30,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873515373] [2024-10-24 14:40:30,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:30,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:31,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 14:40:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:31,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 14:40:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:31,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 14:40:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:31,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 14:40:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 14:40:31,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:31,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873515373] [2024-10-24 14:40:31,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873515373] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 14:40:31,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631540582] [2024-10-24 14:40:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:31,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 14:40:31,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 14:40:31,216 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) [2024-10-24 14:40:31,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 14:40:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:31,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 14:40:31,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 14:40:31,920 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 14:40:31,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 14:40:31,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631540582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:31,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 14:40:31,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-24 14:40:31,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987541335] [2024-10-24 14:40:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:31,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 14:40:31,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 14:40:31,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:40:31,923 INFO L87 Difference]: Start difference. First operand 549 states and 728 transitions. Second operand has 5 states, 4 states have (on average 43.0) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:31,995 INFO L93 Difference]: Finished difference Result 1068 states and 1431 transitions. [2024-10-24 14:40:31,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 14:40:31,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 43.0) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 184 [2024-10-24 14:40:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:31,999 INFO L225 Difference]: With dead ends: 1068 [2024-10-24 14:40:31,999 INFO L226 Difference]: Without dead ends: 613 [2024-10-24 14:40:32,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:40:32,000 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 367 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:32,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1689 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 14:40:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-10-24 14:40:32,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 551. [2024-10-24 14:40:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 539 states have (on average 1.320964749536178) internal successors, (712), 540 states have internal predecessors, (712), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-24 14:40:32,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 733 transitions. [2024-10-24 14:40:32,017 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 733 transitions. Word has length 184 [2024-10-24 14:40:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:32,018 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 733 transitions. [2024-10-24 14:40:32,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 43.0) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:32,018 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 733 transitions. [2024-10-24 14:40:32,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-24 14:40:32,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:32,020 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:32,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 14:40:32,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 14:40:32,224 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:32,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:32,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1325539188, now seen corresponding path program 1 times [2024-10-24 14:40:32,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:32,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953684188] [2024-10-24 14:40:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:32,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:32,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 14:40:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:32,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 14:40:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:32,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 14:40:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:32,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-24 14:40:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:32,918 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 14:40:32,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:32,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953684188] [2024-10-24 14:40:32,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953684188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 14:40:32,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643857219] [2024-10-24 14:40:32,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:32,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 14:40:32,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 14:40:32,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 14:40:32,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 14:40:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:33,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 14:40:33,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 14:40:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 14:40:33,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 14:40:33,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643857219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:33,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 14:40:33,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-10-24 14:40:33,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845096035] [2024-10-24 14:40:33,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:33,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 14:40:33,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:33,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 14:40:33,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-24 14:40:33,588 INFO L87 Difference]: Start difference. First operand 551 states and 733 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:33,839 INFO L93 Difference]: Finished difference Result 922 states and 1238 transitions. [2024-10-24 14:40:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 14:40:33,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 188 [2024-10-24 14:40:33,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:33,841 INFO L225 Difference]: With dead ends: 922 [2024-10-24 14:40:33,842 INFO L226 Difference]: Without dead ends: 561 [2024-10-24 14:40:33,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-24 14:40:33,843 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 12 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:33,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1991 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 14:40:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-10-24 14:40:33,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2024-10-24 14:40:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 547 states have (on average 1.3162705667276051) internal successors, (720), 548 states have internal predecessors, (720), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-24 14:40:33,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 741 transitions. [2024-10-24 14:40:33,856 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 741 transitions. Word has length 188 [2024-10-24 14:40:33,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:33,856 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 741 transitions. [2024-10-24 14:40:33,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 741 transitions. [2024-10-24 14:40:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-10-24 14:40:33,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:33,858 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:33,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 14:40:34,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 14:40:34,059 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:34,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash 895261904, now seen corresponding path program 1 times [2024-10-24 14:40:34,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:34,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305929793] [2024-10-24 14:40:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:34,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:34,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 14:40:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:34,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 14:40:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:34,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 14:40:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:34,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 14:40:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:34,527 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 14:40:34,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:34,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305929793] [2024-10-24 14:40:34,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305929793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:34,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:34,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 14:40:34,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158252003] [2024-10-24 14:40:34,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:34,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 14:40:34,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:34,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 14:40:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 14:40:34,529 INFO L87 Difference]: Start difference. First operand 559 states and 741 transitions. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 8 states have internal predecessors, (172), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:35,121 INFO L93 Difference]: Finished difference Result 944 states and 1258 transitions. [2024-10-24 14:40:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:40:35,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 8 states have internal predecessors, (172), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 189 [2024-10-24 14:40:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:35,124 INFO L225 Difference]: With dead ends: 944 [2024-10-24 14:40:35,124 INFO L226 Difference]: Without dead ends: 589 [2024-10-24 14:40:35,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 14:40:35,125 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 27 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:35,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2276 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 14:40:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-10-24 14:40:35,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 567. [2024-10-24 14:40:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 555 states have (on average 1.3153153153153154) internal successors, (730), 556 states have internal predecessors, (730), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-24 14:40:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 751 transitions. [2024-10-24 14:40:35,143 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 751 transitions. Word has length 189 [2024-10-24 14:40:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:35,143 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 751 transitions. [2024-10-24 14:40:35,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 8 states have internal predecessors, (172), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 751 transitions. [2024-10-24 14:40:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-24 14:40:35,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:35,145 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:35,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 14:40:35,145 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:35,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:35,146 INFO L85 PathProgramCache]: Analyzing trace with hash 942039840, now seen corresponding path program 1 times [2024-10-24 14:40:35,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:35,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689279201] [2024-10-24 14:40:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:35,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:35,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 14:40:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:35,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 14:40:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:35,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 14:40:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:35,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 14:40:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 14:40:35,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:35,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689279201] [2024-10-24 14:40:35,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689279201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:35,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:35,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 14:40:35,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038891135] [2024-10-24 14:40:35,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:35,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 14:40:35,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:35,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 14:40:35,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 14:40:35,730 INFO L87 Difference]: Start difference. First operand 567 states and 751 transitions. Second operand has 10 states, 10 states have (on average 17.3) internal successors, (173), 9 states have internal predecessors, (173), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:36,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:36,326 INFO L93 Difference]: Finished difference Result 953 states and 1273 transitions. [2024-10-24 14:40:36,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:40:36,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 9 states have internal predecessors, (173), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 190 [2024-10-24 14:40:36,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:36,329 INFO L225 Difference]: With dead ends: 953 [2024-10-24 14:40:36,329 INFO L226 Difference]: Without dead ends: 589 [2024-10-24 14:40:36,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-24 14:40:36,330 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 34 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:36,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2966 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 14:40:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-10-24 14:40:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 583. [2024-10-24 14:40:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 571 states have (on average 1.3134851138353765) internal successors, (750), 572 states have internal predecessors, (750), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-24 14:40:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 771 transitions. [2024-10-24 14:40:36,344 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 771 transitions. Word has length 190 [2024-10-24 14:40:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:36,344 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 771 transitions. [2024-10-24 14:40:36,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 9 states have internal predecessors, (173), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 771 transitions. [2024-10-24 14:40:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-24 14:40:36,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:36,346 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:36,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 14:40:36,346 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:36,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash -261460185, now seen corresponding path program 1 times [2024-10-24 14:40:36,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:36,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077828788] [2024-10-24 14:40:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:36,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:36,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 14:40:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:36,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 14:40:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:36,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 14:40:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:36,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 14:40:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:36,801 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 14:40:36,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:36,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077828788] [2024-10-24 14:40:36,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077828788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:40:36,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:40:36,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 14:40:36,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704958310] [2024-10-24 14:40:36,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:40:36,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 14:40:36,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:40:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 14:40:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 14:40:36,804 INFO L87 Difference]: Start difference. First operand 583 states and 771 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:40:37,233 INFO L93 Difference]: Finished difference Result 975 states and 1296 transitions. [2024-10-24 14:40:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 14:40:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 190 [2024-10-24 14:40:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:40:37,236 INFO L225 Difference]: With dead ends: 975 [2024-10-24 14:40:37,236 INFO L226 Difference]: Without dead ends: 601 [2024-10-24 14:40:37,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 14:40:37,237 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 18 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:40:37,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1976 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:40:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-10-24 14:40:37,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 589. [2024-10-24 14:40:37,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 577 states have (on average 1.3102253032928943) internal successors, (756), 578 states have internal predecessors, (756), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-24 14:40:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 777 transitions. [2024-10-24 14:40:37,248 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 777 transitions. Word has length 190 [2024-10-24 14:40:37,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:40:37,248 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 777 transitions. [2024-10-24 14:40:37,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 14:40:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 777 transitions. [2024-10-24 14:40:37,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-10-24 14:40:37,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:40:37,250 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:40:37,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 14:40:37,250 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 14:40:37,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:40:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1673815219, now seen corresponding path program 1 times [2024-10-24 14:40:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:40:37,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621750324] [2024-10-24 14:40:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:37,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:40:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:37,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 14:40:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:37,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 14:40:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:37,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 14:40:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:37,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 14:40:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 14:40:37,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:40:37,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621750324] [2024-10-24 14:40:37,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621750324] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 14:40:37,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974863007] [2024-10-24 14:40:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:40:37,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 14:40:37,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 14:40:37,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 14:40:37,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 14:40:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:40:38,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 237 conjuncts are in the unsatisfiable core [2024-10-24 14:40:38,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 14:40:38,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 14:40:38,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-10-24 14:40:39,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11 [2024-10-24 14:40:39,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2024-10-24 14:40:39,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 14:40:39,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 14:40:39,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 14:40:39,211 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-10-24 14:40:39,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-10-24 14:40:39,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-10-24 14:40:39,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-24 14:40:39,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-24 14:40:39,426 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-10-24 14:40:39,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 57 [2024-10-24 14:40:39,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-10-24 14:40:39,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11