./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-crafted/mapavg1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-crafted/mapavg1.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 9597042154fc2fc3c1808d4beed7ae6070061c42e65231c1781a660590e51714 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 02:38:00,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 02:38:00,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 02:38:00,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 02:38:00,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 02:38:00,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 02:38:00,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 02:38:00,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 02:38:00,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 02:38:00,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 02:38:00,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 02:38:00,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 02:38:00,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 02:38:00,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 02:38:00,824 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 02:38:00,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 02:38:00,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 02:38:00,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 02:38:00,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 02:38:00,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 02:38:00,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 02:38:00,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 02:38:00,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 02:38:00,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 02:38:00,830 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 02:38:00,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 02:38:00,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 02:38:00,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 02:38:00,831 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 02:38:00,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 02:38:00,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 02:38:00,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 02:38:00,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:38:00,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 02:38:00,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 02:38:00,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 02:38:00,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 02:38:00,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 02:38:00,833 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 02:38:00,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 02:38:00,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 02:38:00,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 02:38:00,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9597042154fc2fc3c1808d4beed7ae6070061c42e65231c1781a660590e51714 [2024-11-16 02:38:01,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 02:38:01,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 02:38:01,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 02:38:01,140 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 02:38:01,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 02:38:01,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/mapavg1.i [2024-11-16 02:38:02,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 02:38:02,741 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 02:38:02,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/mapavg1.i [2024-11-16 02:38:02,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7596940cc/bb37e68cb29e487f9ff6c5432fd0d0f5/FLAG246187933 [2024-11-16 02:38:02,763 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7596940cc/bb37e68cb29e487f9ff6c5432fd0d0f5 [2024-11-16 02:38:02,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 02:38:02,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 02:38:02,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 02:38:02,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 02:38:02,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 02:38:02,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:38:02" (1/1) ... [2024-11-16 02:38:02,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b275c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:02, skipping insertion in model container [2024-11-16 02:38:02,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:38:02" (1/1) ... [2024-11-16 02:38:02,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 02:38:03,020 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/array-crafted/mapavg1.i[1306,1319] [2024-11-16 02:38:03,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:38:03,030 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 02:38:03,048 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/array-crafted/mapavg1.i[1306,1319] [2024-11-16 02:38:03,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:38:03,064 INFO L204 MainTranslator]: Completed translation [2024-11-16 02:38:03,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03 WrapperNode [2024-11-16 02:38:03,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 02:38:03,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 02:38:03,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 02:38:03,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 02:38:03,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,100 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-16 02:38:03,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 02:38:03,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 02:38:03,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 02:38:03,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 02:38:03,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,127 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-16 02:38:03,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,137 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 02:38:03,143 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 02:38:03,143 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 02:38:03,143 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 02:38:03,144 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (1/1) ... [2024-11-16 02:38:03,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:38:03,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:03,177 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) [2024-11-16 02:38:03,180 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 [2024-11-16 02:38:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 02:38:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 02:38:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 02:38:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 02:38:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 02:38:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 02:38:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 02:38:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 02:38:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 02:38:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 02:38:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure mapavg [2024-11-16 02:38:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mapavg [2024-11-16 02:38:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 02:38:03,321 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 02:38:03,322 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 02:38:03,441 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L31: call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset; [2024-11-16 02:38:03,469 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-16 02:38:03,469 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 02:38:03,483 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 02:38:03,484 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 02:38:03,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:38:03 BoogieIcfgContainer [2024-11-16 02:38:03,485 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 02:38:03,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 02:38:03,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 02:38:03,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 02:38:03,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:38:02" (1/3) ... [2024-11-16 02:38:03,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0aa2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:38:03, skipping insertion in model container [2024-11-16 02:38:03,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:38:03" (2/3) ... [2024-11-16 02:38:03,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0aa2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:38:03, skipping insertion in model container [2024-11-16 02:38:03,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:38:03" (3/3) ... [2024-11-16 02:38:03,496 INFO L112 eAbstractionObserver]: Analyzing ICFG mapavg1.i [2024-11-16 02:38:03,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 02:38:03,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 02:38:03,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 02:38:03,584 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;@c9f0483, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 02:38:03,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 02:38:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 02:38:03,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:03,600 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:03,600 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:03,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:03,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1045625723, now seen corresponding path program 1 times [2024-11-16 02:38:03,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:03,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034091551] [2024-11-16 02:38:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:03,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:03,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 02:38:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:03,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 02:38:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:03,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 02:38:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 02:38:03,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:03,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034091551] [2024-11-16 02:38:03,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034091551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:38:03,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:38:03,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 02:38:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676653286] [2024-11-16 02:38:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:38:03,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 02:38:03,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:03,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 02:38:03,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:38:03,856 INFO L87 Difference]: Start difference. First operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:38:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:03,870 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2024-11-16 02:38:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 02:38:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-16 02:38:03,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:03,877 INFO L225 Difference]: With dead ends: 50 [2024-11-16 02:38:03,877 INFO L226 Difference]: Without dead ends: 23 [2024-11-16 02:38:03,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:38:03,882 INFO L432 NwaCegarLoop]: 31 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, 31 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 [2024-11-16 02:38:03,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:03,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-16 02:38:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-16 02:38:03,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-11-16 02:38:03,917 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 29 [2024-11-16 02:38:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:03,918 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-11-16 02:38:03,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:38:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-11-16 02:38:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-16 02:38:03,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:03,920 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:03,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 02:38:03,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:03,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:03,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1429674698, now seen corresponding path program 1 times [2024-11-16 02:38:03,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:03,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866360462] [2024-11-16 02:38:03,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:03,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 02:38:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 02:38:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 02:38:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:38:04,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:04,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866360462] [2024-11-16 02:38:04,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866360462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:04,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606870835] [2024-11-16 02:38:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:04,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:04,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:04,196 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) [2024-11-16 02:38:04,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 02:38:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 02:38:04,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 02:38:04,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:38:04,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606870835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:38:04,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:38:04,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 02:38:04,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417083038] [2024-11-16 02:38:04,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:38:04,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 02:38:04,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:04,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 02:38:04,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:38:04,379 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:38:04,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:04,399 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-11-16 02:38:04,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 02:38:04,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-16 02:38:04,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:04,401 INFO L225 Difference]: With dead ends: 44 [2024-11-16 02:38:04,401 INFO L226 Difference]: Without dead ends: 25 [2024-11-16 02:38:04,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:38:04,404 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:04,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:04,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-16 02:38:04,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-16 02:38:04,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:04,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-16 02:38:04,413 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 34 [2024-11-16 02:38:04,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:04,413 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-16 02:38:04,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:38:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-16 02:38:04,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 02:38:04,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:04,415 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:04,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 02:38:04,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:04,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:04,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:04,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1006504457, now seen corresponding path program 1 times [2024-11-16 02:38:04,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:04,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36326262] [2024-11-16 02:38:04,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:04,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 02:38:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 02:38:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 02:38:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:38:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:04,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36326262] [2024-11-16 02:38:04,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36326262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:04,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610378055] [2024-11-16 02:38:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:04,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:04,848 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) [2024-11-16 02:38:04,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 02:38:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:04,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 02:38:04,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 02:38:04,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:38:04,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610378055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:38:04,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:38:04,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-11-16 02:38:04,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205428666] [2024-11-16 02:38:04,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:38:04,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 02:38:04,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:04,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 02:38:04,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:38:04,957 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:38:04,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:04,970 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2024-11-16 02:38:04,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 02:38:04,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-16 02:38:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:04,973 INFO L225 Difference]: With dead ends: 44 [2024-11-16 02:38:04,973 INFO L226 Difference]: Without dead ends: 27 [2024-11-16 02:38:04,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:38:04,975 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:04,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:04,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-16 02:38:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-16 02:38:04,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:04,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-16 02:38:04,985 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 36 [2024-11-16 02:38:04,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:04,986 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-16 02:38:04,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:38:04,986 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-16 02:38:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-16 02:38:04,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:04,988 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:05,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 02:38:05,192 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,SelfDestructingSolverStorable2 [2024-11-16 02:38:05,193 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:05,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:05,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1894253002, now seen corresponding path program 1 times [2024-11-16 02:38:05,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:05,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096154437] [2024-11-16 02:38:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 02:38:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:38:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 02:38:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 02:38:05,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096154437] [2024-11-16 02:38:05,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096154437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:05,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935252926] [2024-11-16 02:38:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:05,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:05,335 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:05,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 02:38:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 02:38:05,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 02:38:05,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:38:05,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935252926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:38:05,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:38:05,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-16 02:38:05,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507732020] [2024-11-16 02:38:05,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:38:05,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 02:38:05,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:05,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 02:38:05,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 02:38:05,463 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:38:05,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:05,477 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-16 02:38:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 02:38:05,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-16 02:38:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:05,483 INFO L225 Difference]: With dead ends: 43 [2024-11-16 02:38:05,483 INFO L226 Difference]: Without dead ends: 29 [2024-11-16 02:38:05,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 02:38:05,484 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:05,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:05,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-16 02:38:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-16 02:38:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:05,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-16 02:38:05,496 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 42 [2024-11-16 02:38:05,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:05,499 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-16 02:38:05,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:38:05,499 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-16 02:38:05,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-16 02:38:05,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:05,502 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:05,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 02:38:05,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:05,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:05,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:05,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1366762187, now seen corresponding path program 1 times [2024-11-16 02:38:05,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:05,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224622604] [2024-11-16 02:38:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:05,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 02:38:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:38:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 02:38:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 02:38:05,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:05,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224622604] [2024-11-16 02:38:05,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224622604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:05,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855380780] [2024-11-16 02:38:05,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:05,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:05,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:05,812 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) [2024-11-16 02:38:05,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 02:38:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:05,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 02:38:05,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 02:38:05,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:06,003 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 02:38:06,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855380780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:06,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:06,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-16 02:38:06,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438554710] [2024-11-16 02:38:06,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:06,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 02:38:06,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:06,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 02:38:06,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-16 02:38:06,005 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:38:06,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:06,037 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2024-11-16 02:38:06,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 02:38:06,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-11-16 02:38:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:06,039 INFO L225 Difference]: With dead ends: 60 [2024-11-16 02:38:06,039 INFO L226 Difference]: Without dead ends: 37 [2024-11-16 02:38:06,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-16 02:38:06,041 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:06,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-16 02:38:06,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-16 02:38:06,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:06,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-11-16 02:38:06,047 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 44 [2024-11-16 02:38:06,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:06,047 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-11-16 02:38:06,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:38:06,048 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-16 02:38:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 02:38:06,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:06,049 INFO L215 NwaCegarLoop]: trace histogram [9, 6, 5, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:06,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 02:38:06,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:06,254 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:06,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash 859924617, now seen corresponding path program 2 times [2024-11-16 02:38:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:06,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90862884] [2024-11-16 02:38:06,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:06,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:06,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 02:38:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:06,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 02:38:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:06,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 02:38:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-16 02:38:06,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:06,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90862884] [2024-11-16 02:38:06,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90862884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:06,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232581665] [2024-11-16 02:38:06,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:38:06,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:06,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:06,375 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) [2024-11-16 02:38:06,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 02:38:06,458 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:38:06,458 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:06,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:38:06,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 02:38:06,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 02:38:06,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232581665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:06,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:06,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-16 02:38:06,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655376231] [2024-11-16 02:38:06,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:06,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 02:38:06,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:06,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 02:38:06,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-16 02:38:06,613 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 02:38:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:06,650 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2024-11-16 02:38:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 02:38:06,652 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-11-16 02:38:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:06,652 INFO L225 Difference]: With dead ends: 76 [2024-11-16 02:38:06,652 INFO L226 Difference]: Without dead ends: 51 [2024-11-16 02:38:06,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-16 02:38:06,654 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:06,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:06,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-16 02:38:06,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-16 02:38:06,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:06,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2024-11-16 02:38:06,666 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 56 [2024-11-16 02:38:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:06,667 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2024-11-16 02:38:06,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 02:38:06,668 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2024-11-16 02:38:06,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 02:38:06,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:06,671 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 9, 6, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:06,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 02:38:06,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:06,872 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:06,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:06,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1493241212, now seen corresponding path program 3 times [2024-11-16 02:38:06,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:06,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303943164] [2024-11-16 02:38:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:06,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:07,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 02:38:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:07,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 02:38:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:07,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 02:38:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 02:38:07,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303943164] [2024-11-16 02:38:07,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303943164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:07,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699726698] [2024-11-16 02:38:07,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 02:38:07,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:07,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:07,201 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:07,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 02:38:07,310 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-16 02:38:07,311 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:07,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 02:38:07,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-16 02:38:07,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-16 02:38:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699726698] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:07,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:07,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2024-11-16 02:38:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649962008] [2024-11-16 02:38:07,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:07,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 02:38:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:07,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 02:38:07,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-16 02:38:07,452 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:07,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:07,501 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2024-11-16 02:38:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 02:38:07,504 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2024-11-16 02:38:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:07,505 INFO L225 Difference]: With dead ends: 88 [2024-11-16 02:38:07,505 INFO L226 Difference]: Without dead ends: 61 [2024-11-16 02:38:07,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-16 02:38:07,506 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:07,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-16 02:38:07,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-16 02:38:07,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 56 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:07,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2024-11-16 02:38:07,519 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 70 [2024-11-16 02:38:07,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:07,519 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2024-11-16 02:38:07,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:07,520 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2024-11-16 02:38:07,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 02:38:07,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:07,523 INFO L215 NwaCegarLoop]: trace histogram [21, 18, 12, 11, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:07,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 02:38:07,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:07,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:07,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:07,724 INFO L85 PathProgramCache]: Analyzing trace with hash 641234119, now seen corresponding path program 4 times [2024-11-16 02:38:07,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:07,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351675244] [2024-11-16 02:38:07,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:07,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 02:38:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 02:38:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 02:38:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2024-11-16 02:38:08,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:08,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351675244] [2024-11-16 02:38:08,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351675244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:08,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844451930] [2024-11-16 02:38:08,072 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-16 02:38:08,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:08,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:08,075 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:08,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 02:38:08,200 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-16 02:38:08,201 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:08,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 02:38:08,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 204 proven. 6 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-16 02:38:08,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2024-11-16 02:38:08,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844451930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:08,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:08,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 20 [2024-11-16 02:38:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794726225] [2024-11-16 02:38:08,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:08,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-16 02:38:08,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:08,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-16 02:38:08,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-16 02:38:08,332 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:08,382 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2024-11-16 02:38:08,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 02:38:08,384 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 96 [2024-11-16 02:38:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:08,385 INFO L225 Difference]: With dead ends: 106 [2024-11-16 02:38:08,385 INFO L226 Difference]: Without dead ends: 71 [2024-11-16 02:38:08,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-16 02:38:08,386 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:08,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:08,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-16 02:38:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-16 02:38:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 66 states have (on average 1.0454545454545454) internal successors, (69), 66 states have internal predecessors, (69), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2024-11-16 02:38:08,400 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 96 [2024-11-16 02:38:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:08,400 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2024-11-16 02:38:08,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2024-11-16 02:38:08,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 02:38:08,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:08,404 INFO L215 NwaCegarLoop]: trace histogram [21, 18, 13, 12, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:08,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 02:38:08,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:08,605 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:08,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1865376842, now seen corresponding path program 5 times [2024-11-16 02:38:08,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:08,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849438165] [2024-11-16 02:38:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 02:38:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 02:38:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 02:38:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-11-16 02:38:08,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:08,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849438165] [2024-11-16 02:38:08,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849438165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:08,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540154309] [2024-11-16 02:38:08,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-16 02:38:08,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:08,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:08,958 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:08,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 02:38:09,627 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-16 02:38:09,627 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:09,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 02:38:09,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 198 proven. 42 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-16 02:38:09,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:09,898 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-16 02:38:09,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540154309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:09,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:09,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 29 [2024-11-16 02:38:09,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504965068] [2024-11-16 02:38:09,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:09,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 02:38:09,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:09,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 02:38:09,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2024-11-16 02:38:09,901 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:09,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:09,946 INFO L93 Difference]: Finished difference Result 132 states and 151 transitions. [2024-11-16 02:38:09,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-16 02:38:09,947 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 106 [2024-11-16 02:38:09,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:09,948 INFO L225 Difference]: With dead ends: 132 [2024-11-16 02:38:09,948 INFO L226 Difference]: Without dead ends: 89 [2024-11-16 02:38:09,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2024-11-16 02:38:09,949 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:09,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 266 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-16 02:38:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-16 02:38:09,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 84 states have (on average 1.0357142857142858) internal successors, (87), 84 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:09,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2024-11-16 02:38:09,957 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 106 [2024-11-16 02:38:09,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:09,957 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2024-11-16 02:38:09,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2024-11-16 02:38:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 02:38:09,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:09,959 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 14, 13, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:09,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 02:38:10,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-16 02:38:10,160 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:10,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:10,161 INFO L85 PathProgramCache]: Analyzing trace with hash 111860113, now seen corresponding path program 6 times [2024-11-16 02:38:10,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:10,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600993411] [2024-11-16 02:38:10,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:10,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:10,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 02:38:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:10,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 02:38:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:10,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 02:38:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2024-11-16 02:38:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600993411] [2024-11-16 02:38:10,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600993411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399235866] [2024-11-16 02:38:10,619 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-16 02:38:10,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:10,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:10,621 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:10,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 02:38:10,863 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-11-16 02:38:10,864 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:10,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 02:38:10,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 934 proven. 42 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2024-11-16 02:38:11,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2174 trivial. 0 not checked. [2024-11-16 02:38:11,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399235866] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:11,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:11,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 9] total 31 [2024-11-16 02:38:11,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432084843] [2024-11-16 02:38:11,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:11,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-16 02:38:11,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:11,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-16 02:38:11,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2024-11-16 02:38:11,183 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:11,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:11,245 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2024-11-16 02:38:11,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 02:38:11,246 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 156 [2024-11-16 02:38:11,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:11,247 INFO L225 Difference]: With dead ends: 166 [2024-11-16 02:38:11,247 INFO L226 Difference]: Without dead ends: 107 [2024-11-16 02:38:11,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2024-11-16 02:38:11,248 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:11,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 290 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:11,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-16 02:38:11,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-16 02:38:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.0294117647058822) internal successors, (105), 102 states have internal predecessors, (105), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2024-11-16 02:38:11,262 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 156 [2024-11-16 02:38:11,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:11,263 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2024-11-16 02:38:11,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2024-11-16 02:38:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 02:38:11,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:11,264 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 15, 15, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:11,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-16 02:38:11,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 02:38:11,465 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:11,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:11,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2080004840, now seen corresponding path program 7 times [2024-11-16 02:38:11,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:11,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078732504] [2024-11-16 02:38:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:11,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:11,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 02:38:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:11,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 02:38:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:11,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 02:38:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:38:11,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:11,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078732504] [2024-11-16 02:38:11,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078732504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:11,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453245846] [2024-11-16 02:38:11,915 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-16 02:38:11,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:11,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:11,917 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:11,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 02:38:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:12,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 02:38:12,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:38:12,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:38:12,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453245846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:12,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:12,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2024-11-16 02:38:12,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494088807] [2024-11-16 02:38:12,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:12,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-16 02:38:12,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-16 02:38:12,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 02:38:12,592 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:38:12,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:12,634 INFO L93 Difference]: Finished difference Result 214 states and 237 transitions. [2024-11-16 02:38:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-16 02:38:12,638 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 174 [2024-11-16 02:38:12,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:12,639 INFO L225 Difference]: With dead ends: 214 [2024-11-16 02:38:12,639 INFO L226 Difference]: Without dead ends: 139 [2024-11-16 02:38:12,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 02:38:12,640 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:12,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:38:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-16 02:38:12,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-16 02:38:12,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 134 states have (on average 1.0223880597014925) internal successors, (137), 134 states have internal predecessors, (137), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 143 transitions. [2024-11-16 02:38:12,655 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 143 transitions. Word has length 174 [2024-11-16 02:38:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:12,657 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 143 transitions. [2024-11-16 02:38:12,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:38:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 143 transitions. [2024-11-16 02:38:12,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 02:38:12,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:12,660 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 31, 30, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:12,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-16 02:38:12,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 02:38:12,861 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:12,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:12,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1463021320, now seen corresponding path program 8 times [2024-11-16 02:38:12,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:12,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458779952] [2024-11-16 02:38:12,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:12,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:13,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 02:38:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:13,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 02:38:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:13,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 02:38:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:38:13,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:13,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458779952] [2024-11-16 02:38:13,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458779952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:13,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159058202] [2024-11-16 02:38:13,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:38:13,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:13,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:13,948 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:13,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-16 02:38:14,158 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:38:14,158 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:14,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-16 02:38:14,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:38:14,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:38:15,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159058202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:15,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:15,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 65 [2024-11-16 02:38:15,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590085384] [2024-11-16 02:38:15,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:15,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-16 02:38:15,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:15,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-16 02:38:15,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2024-11-16 02:38:15,618 INFO L87 Difference]: Start difference. First operand 139 states and 143 transitions. Second operand has 65 states, 65 states have (on average 2.3384615384615386) internal successors, (152), 65 states have internal predecessors, (152), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:38:15,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:15,718 INFO L93 Difference]: Finished difference Result 278 states and 317 transitions. [2024-11-16 02:38:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-16 02:38:15,718 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.3384615384615386) internal successors, (152), 65 states have internal predecessors, (152), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 206 [2024-11-16 02:38:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:15,722 INFO L225 Difference]: With dead ends: 278 [2024-11-16 02:38:15,722 INFO L226 Difference]: Without dead ends: 203 [2024-11-16 02:38:15,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2024-11-16 02:38:15,724 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:15,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:38:15,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-16 02:38:15,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-16 02:38:15,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.0151515151515151) internal successors, (201), 198 states have internal predecessors, (201), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:15,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 207 transitions. [2024-11-16 02:38:15,742 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 207 transitions. Word has length 206 [2024-11-16 02:38:15,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:15,742 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 207 transitions. [2024-11-16 02:38:15,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.3384615384615386) internal successors, (152), 65 states have internal predecessors, (152), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:38:15,743 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 207 transitions. [2024-11-16 02:38:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-16 02:38:15,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:15,746 INFO L215 NwaCegarLoop]: trace histogram [63, 62, 45, 42, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:15,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-16 02:38:15,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 02:38:15,946 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:15,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1361396456, now seen corresponding path program 9 times [2024-11-16 02:38:15,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:15,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771606450] [2024-11-16 02:38:15,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:15,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:18,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 02:38:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:18,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 02:38:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:18,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-16 02:38:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:18,984 INFO L134 CoverageAnalysis]: Checked inductivity of 6108 backedges. 0 proven. 3906 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:38:18,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:18,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771606450] [2024-11-16 02:38:18,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771606450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:18,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92370666] [2024-11-16 02:38:18,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 02:38:18,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:18,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:18,987 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:18,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-16 02:38:19,531 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-16 02:38:19,531 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:19,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 02:38:19,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6108 backedges. 906 proven. 210 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-11-16 02:38:20,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:20,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6108 backedges. 906 proven. 210 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-11-16 02:38:20,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92370666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:20,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:20,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 17, 17] total 95 [2024-11-16 02:38:20,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531425465] [2024-11-16 02:38:20,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:20,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-11-16 02:38:20,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-11-16 02:38:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2575, Invalid=6355, Unknown=0, NotChecked=0, Total=8930 [2024-11-16 02:38:20,681 INFO L87 Difference]: Start difference. First operand 203 states and 207 transitions. Second operand has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 95 states have internal predecessors, (219), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:20,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:20,798 INFO L93 Difference]: Finished difference Result 312 states and 339 transitions. [2024-11-16 02:38:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-11-16 02:38:20,799 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 95 states have internal predecessors, (219), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 270 [2024-11-16 02:38:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:20,801 INFO L225 Difference]: With dead ends: 312 [2024-11-16 02:38:20,801 INFO L226 Difference]: Without dead ends: 237 [2024-11-16 02:38:20,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1860 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2575, Invalid=6355, Unknown=0, NotChecked=0, Total=8930 [2024-11-16 02:38:20,804 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:20,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 395 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:38:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-16 02:38:20,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-11-16 02:38:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.0129310344827587) internal successors, (235), 232 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 241 transitions. [2024-11-16 02:38:20,815 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 241 transitions. Word has length 270 [2024-11-16 02:38:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:20,815 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 241 transitions. [2024-11-16 02:38:20,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 95 states have internal predecessors, (219), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:20,816 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 241 transitions. [2024-11-16 02:38:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-16 02:38:20,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:20,820 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 64, 63, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:20,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-16 02:38:21,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 02:38:21,021 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:21,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:21,021 INFO L85 PathProgramCache]: Analyzing trace with hash 47622583, now seen corresponding path program 10 times [2024-11-16 02:38:21,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:21,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124118990] [2024-11-16 02:38:21,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:21,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:24,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 02:38:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:24,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 02:38:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:24,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-11-16 02:38:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:24,190 INFO L134 CoverageAnalysis]: Checked inductivity of 12810 backedges. 0 proven. 4032 refuted. 0 times theorem prover too weak. 8778 trivial. 0 not checked. [2024-11-16 02:38:24,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:24,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124118990] [2024-11-16 02:38:24,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124118990] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:24,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936194160] [2024-11-16 02:38:24,191 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-16 02:38:24,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:24,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:24,193 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:24,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-16 02:38:24,545 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-16 02:38:24,545 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:38:24,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 02:38:24,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:38:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 12810 backedges. 3852 proven. 210 refuted. 0 times theorem prover too weak. 8748 trivial. 0 not checked. [2024-11-16 02:38:24,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:38:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 12810 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 12600 trivial. 0 not checked. [2024-11-16 02:38:25,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936194160] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:38:25,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:38:25,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 17, 17] total 96 [2024-11-16 02:38:25,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964055771] [2024-11-16 02:38:25,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:38:25,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-16 02:38:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:38:25,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-16 02:38:25,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2640, Invalid=6480, Unknown=0, NotChecked=0, Total=9120 [2024-11-16 02:38:25,584 INFO L87 Difference]: Start difference. First operand 237 states and 241 transitions. Second operand has 96 states, 96 states have (on average 2.2916666666666665) internal successors, (220), 96 states have internal predecessors, (220), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:38:25,694 INFO L93 Difference]: Finished difference Result 378 states and 402 transitions. [2024-11-16 02:38:25,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-16 02:38:25,695 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.2916666666666665) internal successors, (220), 96 states have internal predecessors, (220), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 368 [2024-11-16 02:38:25,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:38:25,697 INFO L225 Difference]: With dead ends: 378 [2024-11-16 02:38:25,697 INFO L226 Difference]: Without dead ends: 271 [2024-11-16 02:38:25,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1890 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2640, Invalid=6480, Unknown=0, NotChecked=0, Total=9120 [2024-11-16 02:38:25,700 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:38:25,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:38:25,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-16 02:38:25,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-16 02:38:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 266 states have (on average 1.0112781954887218) internal successors, (269), 266 states have internal predecessors, (269), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:38:25,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 275 transitions. [2024-11-16 02:38:25,710 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 275 transitions. Word has length 368 [2024-11-16 02:38:25,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:38:25,711 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 275 transitions. [2024-11-16 02:38:25,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.2916666666666665) internal successors, (220), 96 states have internal predecessors, (220), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:38:25,711 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 275 transitions. [2024-11-16 02:38:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-16 02:38:25,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:38:25,716 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 65, 64, 31, 30, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:38:25,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-16 02:38:25,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 02:38:25,917 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:38:25,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:38:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1922113338, now seen corresponding path program 11 times [2024-11-16 02:38:25,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:38:25,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325176960] [2024-11-16 02:38:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:38:25,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:38:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:28,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 02:38:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:28,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-16 02:38:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:28,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-16 02:38:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:38:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 13658 backedges. 0 proven. 4160 refuted. 0 times theorem prover too weak. 9498 trivial. 0 not checked. [2024-11-16 02:38:28,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:38:28,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325176960] [2024-11-16 02:38:28,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325176960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:38:28,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400086531] [2024-11-16 02:38:28,989 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-16 02:38:28,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:38:28,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:38:28,992 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:38:28,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process