./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-3.c -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 7deb399b564886a9a655a57b85070b91e5dfa6d45c1bcb1f254fb3a37825fdf5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:14:31,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:14:31,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:14:31,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:14:31,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:14:31,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:14:31,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:14:31,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:14:31,892 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:14:31,892 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:14:31,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:14:31,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:14:31,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:14:31,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:14:31,894 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:14:31,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:14:31,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:14:31,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:14:31,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:14:31,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:14:31,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:14:31,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:14:31,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:14:31,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:14:31,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:14:31,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:14:31,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:14:31,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:14:31,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:14:31,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:14:31,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:14:31,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:14:31,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:14:31,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:14:31,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:14:31,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:14:31,900 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:14:31,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:14:31,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:14:31,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:14:31,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:14:31,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:14:31,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7deb399b564886a9a655a57b85070b91e5dfa6d45c1bcb1f254fb3a37825fdf5 [2024-11-22 03:14:32,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:14:32,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:14:32,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:14:32,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:14:32,120 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:14:32,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-3.c [2024-11-22 03:14:33,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:14:33,514 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:14:33,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-3.c [2024-11-22 03:14:33,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e2e27c18/fc3099f27dfb44e4b26475197fe77d3a/FLAG2c3f6c6c9 [2024-11-22 03:14:33,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e2e27c18/fc3099f27dfb44e4b26475197fe77d3a [2024-11-22 03:14:33,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:14:33,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:14:33,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:14:33,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:14:33,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:14:33,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:33" (1/1) ... [2024-11-22 03:14:33,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1d28e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:33, skipping insertion in model container [2024-11-22 03:14:33,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:33" (1/1) ... [2024-11-22 03:14:33,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:14:34,273 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-3.c[38193,38206] [2024-11-22 03:14:34,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:14:34,309 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:14:34,466 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-3.c[38193,38206] [2024-11-22 03:14:34,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:14:34,497 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:14:34,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34 WrapperNode [2024-11-22 03:14:34,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:14:34,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:14:34,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:14:34,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:14:34,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:34,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:34,776 INFO L138 Inliner]: procedures = 13, calls = 716, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6917 [2024-11-22 03:14:34,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:14:34,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:14:34,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:14:34,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:14:34,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:34,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:34,825 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:34,922 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 03:14:34,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:34,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:35,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:35,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:35,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:35,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:35,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:14:35,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:14:35,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:14:35,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:14:35,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (1/1) ... [2024-11-22 03:14:35,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:14:35,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:14:35,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 03:14:35,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 03:14:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:14:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:14:35,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:14:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:14:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-22 03:14:35,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-22 03:14:35,551 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:14:35,553 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:14:45,123 INFO L? ?]: Removed 1625 outVars from TransFormulas that were not future-live. [2024-11-22 03:14:45,124 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:14:45,187 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:14:45,187 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 03:14:45,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:45 BoogieIcfgContainer [2024-11-22 03:14:45,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:14:45,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:14:45,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:14:45,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:14:45,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:14:33" (1/3) ... [2024-11-22 03:14:45,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ce1603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:45, skipping insertion in model container [2024-11-22 03:14:45,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:34" (2/3) ... [2024-11-22 03:14:45,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ce1603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:45, skipping insertion in model container [2024-11-22 03:14:45,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:45" (3/3) ... [2024-11-22 03:14:45,194 INFO L112 eAbstractionObserver]: Analyzing ICFG aim-200-1-6-unsat-3.c [2024-11-22 03:14:45,205 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:14:45,205 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 03:14:45,297 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:14:45,302 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;@72895e4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:14:45,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 03:14:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 3176 states, 2464 states have (on average 1.5275974025974026) internal successors, (3764), 2465 states have internal predecessors, (3764), 709 states have call successors, (709), 1 states have call predecessors, (709), 1 states have return successors, (709), 709 states have call predecessors, (709), 709 states have call successors, (709) [2024-11-22 03:14:45,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4707 [2024-11-22 03:14:45,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:14:45,524 INFO L215 NwaCegarLoop]: trace histogram [709, 709, 709, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:14:45,525 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:14:45,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:14:45,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1741424222, now seen corresponding path program 1 times [2024-11-22 03:14:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:14:45,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553352869] [2024-11-22 03:14:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:14:45,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:14:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:14:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1003944 backedges. 0 proven. 1416 refuted. 0 times theorem prover too weak. 1002528 trivial. 0 not checked. [2024-11-22 03:14:48,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:14:48,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553352869] [2024-11-22 03:14:48,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553352869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:14:48,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568952173] [2024-11-22 03:14:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:14:48,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:14:48,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:14:48,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:14:48,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 03:14:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:14:49,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 9063 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 03:14:49,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:14:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1003944 backedges. 1416 proven. 0 refuted. 0 times theorem prover too weak. 1002528 trivial. 0 not checked. [2024-11-22 03:14:49,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:14:49,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568952173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:14:49,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:14:49,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 03:14:49,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198913667] [2024-11-22 03:14:49,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:14:49,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 03:14:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:14:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 03:14:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:14:50,007 INFO L87 Difference]: Start difference. First operand has 3176 states, 2464 states have (on average 1.5275974025974026) internal successors, (3764), 2465 states have internal predecessors, (3764), 709 states have call successors, (709), 1 states have call predecessors, (709), 1 states have return successors, (709), 709 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 2 states, 2 states have (on average 583.0) internal successors, (1166), 2 states have internal predecessors, (1166), 2 states have call successors, (709), 2 states have call predecessors, (709), 1 states have return successors, (709), 1 states have call predecessors, (709), 2 states have call successors, (709) [2024-11-22 03:14:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:14:50,149 INFO L93 Difference]: Finished difference Result 6346 states and 11067 transitions. [2024-11-22 03:14:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 03:14:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 583.0) internal successors, (1166), 2 states have internal predecessors, (1166), 2 states have call successors, (709), 2 states have call predecessors, (709), 1 states have return successors, (709), 1 states have call predecessors, (709), 2 states have call successors, (709) Word has length 4706 [2024-11-22 03:14:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:14:50,185 INFO L225 Difference]: With dead ends: 6346 [2024-11-22 03:14:50,185 INFO L226 Difference]: Without dead ends: 3173 [2024-11-22 03:14:50,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4707 GetRequests, 4707 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:14:50,201 INFO L432 NwaCegarLoop]: 5178 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5178 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:14:50,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5178 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:14:50,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-22 03:14:50,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3173. [2024-11-22 03:14:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 2462 states have (on average 1.5272136474411049) internal successors, (3760), 2462 states have internal predecessors, (3760), 709 states have call successors, (709), 1 states have call predecessors, (709), 1 states have return successors, (709), 709 states have call predecessors, (709), 709 states have call successors, (709) [2024-11-22 03:14:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 5178 transitions. [2024-11-22 03:14:50,565 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 5178 transitions. Word has length 4706 [2024-11-22 03:14:50,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:14:50,567 INFO L471 AbstractCegarLoop]: Abstraction has 3173 states and 5178 transitions. [2024-11-22 03:14:50,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 583.0) internal successors, (1166), 2 states have internal predecessors, (1166), 2 states have call successors, (709), 2 states have call predecessors, (709), 1 states have return successors, (709), 1 states have call predecessors, (709), 2 states have call successors, (709) [2024-11-22 03:14:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 5178 transitions. [2024-11-22 03:14:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4707 [2024-11-22 03:14:50,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:14:50,692 INFO L215 NwaCegarLoop]: trace histogram [709, 709, 709, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:14:50,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 03:14:50,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 03:14:50,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:14:50,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:14:50,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1731423356, now seen corresponding path program 1 times [2024-11-22 03:14:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:14:50,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992795636] [2024-11-22 03:14:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:14:50,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:14:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:15:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1003944 backedges. 4068 proven. 12756 refuted. 0 times theorem prover too weak. 987120 trivial. 0 not checked. [2024-11-22 03:15:24,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:15:24,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992795636] [2024-11-22 03:15:24,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992795636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:15:24,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284063012] [2024-11-22 03:15:24,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:15:24,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:15:24,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:15:24,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:15:24,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 03:15:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:15:26,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 9063 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-22 03:15:26,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:15:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1003944 backedges. 272904 proven. 9018 refuted. 0 times theorem prover too weak. 722022 trivial. 0 not checked. [2024-11-22 03:15:36,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:15:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1003944 backedges. 1584 proven. 11070 refuted. 0 times theorem prover too weak. 991290 trivial. 0 not checked. [2024-11-22 03:15:53,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284063012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:15:53,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:15:53,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 33 [2024-11-22 03:15:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988667552] [2024-11-22 03:15:53,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:15:53,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-22 03:15:53,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:15:53,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-22 03:15:53,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=868, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 03:15:53,976 INFO L87 Difference]: Start difference. First operand 3173 states and 5178 transitions. Second operand has 33 states, 23 states have (on average 127.17391304347827) internal successors, (2925), 23 states have internal predecessors, (2925), 26 states have call successors, (1990), 2 states have call predecessors, (1990), 3 states have return successors, (1992), 26 states have call predecessors, (1992), 26 states have call successors, (1992)