/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:48:54,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:48:54,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:48:54,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:48:54,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:48:54,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:48:54,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:48:54,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:48:54,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:48:54,726 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:48:54,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:48:54,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:48:54,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:48:54,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:48:54,728 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:48:54,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:48:54,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:48:54,729 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:48:54,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:48:54,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:48:54,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:48:54,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:48:54,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:48:54,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:48:54,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:48:54,731 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:48:54,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:48:54,731 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:48:54,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:48:54,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:48:54,733 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:48:54,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:48:54,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:48:54,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:48:54,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:48:54,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:48:54,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:48:54,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:48:54,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:48:54,734 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:48:54,734 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:48:54,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:48:54,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:48:54,734 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:48:54,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:48:54,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:48:54,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:48:54,946 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:48:54,946 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:48:54,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2023-12-16 04:48:55,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:48:56,123 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:48:56,124 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2023-12-16 04:48:56,130 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b76137fe/a6dd5be8c8df45239b2348aa1137b59c/FLAGcd8e37e1d [2023-12-16 04:48:56,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b76137fe/a6dd5be8c8df45239b2348aa1137b59c [2023-12-16 04:48:56,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:48:56,149 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:48:56,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:48:56,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:48:56,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:48:56,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88bc108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56, skipping insertion in model container [2023-12-16 04:48:56,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:48:56,286 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i[919,932] [2023-12-16 04:48:56,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:48:56,306 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:48:56,315 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i[919,932] [2023-12-16 04:48:56,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:48:56,330 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:48:56,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56 WrapperNode [2023-12-16 04:48:56,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:48:56,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:48:56,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:48:56,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:48:56,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,358 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-12-16 04:48:56,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:48:56,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:48:56,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:48:56,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:48:56,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,369 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,386 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2023-12-16 04:48:56,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:48:56,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:48:56,403 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:48:56,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:48:56,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (1/1) ... [2023-12-16 04:48:56,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:48:56,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:48:56,428 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) [2023-12-16 04:48:56,451 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 [2023-12-16 04:48:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:48:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:48:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:48:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:48:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:48:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 04:48:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:48:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:48:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:48:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:48:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:48:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:48:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 04:48:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 04:48:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 04:48:56,507 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:48:56,508 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:48:56,647 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:48:56,676 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:48:56,676 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-16 04:48:56,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:48:56 BoogieIcfgContainer [2023-12-16 04:48:56,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:48:56,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:48:56,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:48:56,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:48:56,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:48:56" (1/3) ... [2023-12-16 04:48:56,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff98261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:48:56, skipping insertion in model container [2023-12-16 04:48:56,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:48:56" (2/3) ... [2023-12-16 04:48:56,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff98261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:48:56, skipping insertion in model container [2023-12-16 04:48:56,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:48:56" (3/3) ... [2023-12-16 04:48:56,682 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2023-12-16 04:48:56,693 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:48:56,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:48:56,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:48:56,734 INFO L357 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, mHoare=true, 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;@3e8257ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:48:56,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:48:56,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 04:48:56,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-16 04:48:56,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:48:56,746 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:48:56,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:48:56,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:48:56,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2035542436, now seen corresponding path program 1 times [2023-12-16 04:48:56,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:48:56,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180644848] [2023-12-16 04:48:56,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:56,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:48:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:56,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 04:48:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 04:48:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 04:48:56,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:48:56,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180644848] [2023-12-16 04:48:56,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180644848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:48:56,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:48:56,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:48:56,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40771877] [2023-12-16 04:48:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:48:56,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:48:56,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:48:56,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:48:56,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:48:56,987 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 04:48:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:48:57,037 INFO L93 Difference]: Finished difference Result 53 states and 80 transitions. [2023-12-16 04:48:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:48:57,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-12-16 04:48:57,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:48:57,046 INFO L225 Difference]: With dead ends: 53 [2023-12-16 04:48:57,047 INFO L226 Difference]: Without dead ends: 26 [2023-12-16 04:48:57,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:48:57,051 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:48:57,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:48:57,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-12-16 04:48:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-12-16 04:48:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 04:48:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-12-16 04:48:57,078 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2023-12-16 04:48:57,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:48:57,078 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-12-16 04:48:57,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 04:48:57,078 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-12-16 04:48:57,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-16 04:48:57,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:48:57,079 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:48:57,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:48:57,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:48:57,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:48:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1289629987, now seen corresponding path program 1 times [2023-12-16 04:48:57,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:48:57,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832998169] [2023-12-16 04:48:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:48:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:57,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-16 04:48:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:57,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 04:48:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 04:48:57,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:48:57,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832998169] [2023-12-16 04:48:57,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832998169] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:48:57,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104514980] [2023-12-16 04:48:57,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:57,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:57,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:48:57,202 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) [2023-12-16 04:48:57,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:48:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:57,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 04:48:57,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:48:57,443 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 04:48:57,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:48:57,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104514980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:48:57,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:48:57,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2023-12-16 04:48:57,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372022411] [2023-12-16 04:48:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:48:57,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:48:57,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:48:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:48:57,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:48:57,449 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 04:48:57,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:48:57,563 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-12-16 04:48:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:48:57,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-12-16 04:48:57,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:48:57,565 INFO L225 Difference]: With dead ends: 35 [2023-12-16 04:48:57,565 INFO L226 Difference]: Without dead ends: 33 [2023-12-16 04:48:57,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:48:57,567 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:48:57,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 88 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:48:57,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-12-16 04:48:57,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2023-12-16 04:48:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 04:48:57,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-12-16 04:48:57,581 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 20 [2023-12-16 04:48:57,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:48:57,582 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-12-16 04:48:57,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 04:48:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-12-16 04:48:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-16 04:48:57,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:48:57,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:48:57,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 04:48:57,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:57,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:48:57,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:48:57,790 INFO L85 PathProgramCache]: Analyzing trace with hash -698402714, now seen corresponding path program 1 times [2023-12-16 04:48:57,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:48:57,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682234949] [2023-12-16 04:48:57,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:57,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:48:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-16 04:48:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 04:48:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 04:48:57,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:48:57,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682234949] [2023-12-16 04:48:57,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682234949] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:48:57,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519919960] [2023-12-16 04:48:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:57,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:57,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:48:57,982 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) [2023-12-16 04:48:58,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:48:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:48:58,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:48:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 04:48:58,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:48:58,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519919960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:48:58,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:48:58,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-12-16 04:48:58,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786970070] [2023-12-16 04:48:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:48:58,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:48:58,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:48:58,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:48:58,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:48:58,065 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 04:48:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:48:58,078 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2023-12-16 04:48:58,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:48:58,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-16 04:48:58,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:48:58,079 INFO L225 Difference]: With dead ends: 45 [2023-12-16 04:48:58,079 INFO L226 Difference]: Without dead ends: 35 [2023-12-16 04:48:58,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:48:58,082 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 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 [2023-12-16 04:48:58,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:48:58,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-12-16 04:48:58,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2023-12-16 04:48:58,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 04:48:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-12-16 04:48:58,095 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2023-12-16 04:48:58,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:48:58,095 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-12-16 04:48:58,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 04:48:58,095 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-12-16 04:48:58,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 04:48:58,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:48:58,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:48:58,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:48:58,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-16 04:48:58,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:48:58,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:48:58,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2004618898, now seen corresponding path program 1 times [2023-12-16 04:48:58,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:48:58,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100208484] [2023-12-16 04:48:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:58,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:48:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-16 04:48:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 04:48:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 04:48:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-16 04:48:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 04:48:58,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:48:58,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100208484] [2023-12-16 04:48:58,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100208484] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:48:58,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314302549] [2023-12-16 04:48:58,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:58,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:58,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:48:58,453 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) [2023-12-16 04:48:58,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:48:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 04:48:58,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:48:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 04:48:58,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:48:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 04:48:58,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314302549] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:48:58,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:48:58,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-12-16 04:48:58,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364580654] [2023-12-16 04:48:58,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:48:58,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:48:58,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:48:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:48:58,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:48:58,577 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 04:48:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:48:58,609 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2023-12-16 04:48:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:48:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 35 [2023-12-16 04:48:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:48:58,612 INFO L225 Difference]: With dead ends: 62 [2023-12-16 04:48:58,612 INFO L226 Difference]: Without dead ends: 34 [2023-12-16 04:48:58,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:48:58,614 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:48:58,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:48:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-16 04:48:58,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-12-16 04:48:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 04:48:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2023-12-16 04:48:58,624 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 35 [2023-12-16 04:48:58,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:48:58,624 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2023-12-16 04:48:58,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 04:48:58,624 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2023-12-16 04:48:58,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 04:48:58,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:48:58,625 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:48:58,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 04:48:58,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:58,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:48:58,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:48:58,836 INFO L85 PathProgramCache]: Analyzing trace with hash -607961479, now seen corresponding path program 2 times [2023-12-16 04:48:58,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:48:58,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089320264] [2023-12-16 04:48:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:58,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:48:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 04:48:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 04:48:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-16 04:48:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-16 04:48:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 04:48:58,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:48:58,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089320264] [2023-12-16 04:48:58,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089320264] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:48:58,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687656000] [2023-12-16 04:48:58,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 04:48:58,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:58,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:48:58,988 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) [2023-12-16 04:48:59,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:48:59,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 04:48:59,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:48:59,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 04:48:59,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:48:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 04:48:59,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:48:59,191 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 04:48:59,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687656000] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:48:59,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:48:59,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2023-12-16 04:48:59,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324460005] [2023-12-16 04:48:59,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:48:59,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:48:59,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:48:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:48:59,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:48:59,194 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 04:48:59,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:48:59,374 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2023-12-16 04:48:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:48:59,376 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 38 [2023-12-16 04:48:59,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:48:59,376 INFO L225 Difference]: With dead ends: 68 [2023-12-16 04:48:59,376 INFO L226 Difference]: Without dead ends: 40 [2023-12-16 04:48:59,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:48:59,377 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:48:59,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:48:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-12-16 04:48:59,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-12-16 04:48:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 31 states have (on average 1.096774193548387) internal successors, (34), 31 states have internal predecessors, (34), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 04:48:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-12-16 04:48:59,385 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 38 [2023-12-16 04:48:59,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:48:59,385 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-12-16 04:48:59,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 04:48:59,385 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-12-16 04:48:59,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-16 04:48:59,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:48:59,386 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:48:59,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:48:59,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:59,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:48:59,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:48:59,592 INFO L85 PathProgramCache]: Analyzing trace with hash 663361497, now seen corresponding path program 3 times [2023-12-16 04:48:59,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:48:59,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278707942] [2023-12-16 04:48:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:48:59,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:48:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 04:48:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-16 04:48:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-16 04:48:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 04:48:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:48:59,866 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 04:48:59,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:48:59,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278707942] [2023-12-16 04:48:59,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278707942] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:48:59,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858881021] [2023-12-16 04:48:59,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 04:48:59,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:48:59,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:48:59,882 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) [2023-12-16 04:48:59,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:49:00,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-16 04:49:00,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:49:00,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-16 04:49:00,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:49:00,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2023-12-16 04:49:00,523 INFO L349 Elim1Store]: treesize reduction 112, result has 5.9 percent of original size [2023-12-16 04:49:00,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 52 [2023-12-16 04:49:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-16 04:49:00,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:49:02,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858881021] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:49:02,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:49:02,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2023-12-16 04:49:02,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688786841] [2023-12-16 04:49:02,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:49:02,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-16 04:49:02,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:49:02,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-16 04:49:02,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2023-12-16 04:49:02,033 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 26 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 04:49:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:49:02,725 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2023-12-16 04:49:02,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-16 04:49:02,726 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 44 [2023-12-16 04:49:02,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:49:02,726 INFO L225 Difference]: With dead ends: 76 [2023-12-16 04:49:02,726 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 04:49:02,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=164, Invalid=1318, Unknown=0, NotChecked=0, Total=1482 [2023-12-16 04:49:02,727 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:49:02,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 211 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:49:02,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 04:49:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 04:49:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 04:49:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 04:49:02,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2023-12-16 04:49:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:49:02,728 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 04:49:02,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 04:49:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 04:49:02,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 04:49:02,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:49:02,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:49:02,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:49:02,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 04:49:03,102 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~loop_entered~0#1| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0)) (and .cse0 (<= (mod (+ 4294967295 |ULTIMATE.start_main_~i~0#1|) 4294967296) 99999)))) [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 63) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L895 garLoopResultBuilder]: At program point L49-1(lines 49 55) the Hoare annotation is: (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (let ((.cse1 (select |#memory_int#1| |ULTIMATE.start_main_~#array~0#1.base|))) (= (mod (select .cse1 (+ (* 4 .cse0) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296))) (<= (+ .cse2 1) .cse0))) (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (<= (mod |ULTIMATE.start_main_~index2~0#1| 4294967296) 99999))) [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 34 65) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (= |ULTIMATE.start_main_~loop_entered~0#1| 0) [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 62) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |ULTIMATE.start_main_~#array~0#1.base|))) (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (= (mod (select .cse1 (+ (* 4 .cse0) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296)) (<= (+ .cse2 1) .cse0))) (let ((.cse4 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296)) (.cse3 (mod |ULTIMATE.start_main_~index1~0#1| 4294967296))) (and (<= (+ .cse3 1) .cse4) (<= .cse4 99999) (= (mod (select .cse1 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse4 4))) 4294967296) (mod (select .cse1 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse3 4))) 4294967296)))))) [2023-12-16 04:49:03,103 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296))) (and (<= (+ (mod |ULTIMATE.start_main_~index1~0#1| 4294967296) 1) .cse0) (<= .cse0 99999))) [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (let ((.cse1 (select |#memory_int#1| |ULTIMATE.start_main_~#array~0#1.base|))) (= (mod (select .cse1 (+ (* 4 .cse0) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296))) (= (mod (+ |ULTIMATE.start_main_#t~mem9#1| (* 4294967295 |ULTIMATE.start_main_#t~mem10#1|)) 4294967296) 0) (<= (+ .cse2 1) .cse0))) [2023-12-16 04:49:03,103 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-12-16 04:49:03,103 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~index1~0#1| 4294967296)) (.cse2 (select |#memory_int#1| |ULTIMATE.start_main_~#array~0#1.base|)) (.cse1 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296))) (and (<= (+ .cse0 1) .cse1) (= |ULTIMATE.start_main_#t~mem5#1| (select .cse2 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse0 4)))) (= |ULTIMATE.start_main_#t~mem6#1| (select .cse2 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse1 4)))) (<= .cse1 99999))) [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (= |ULTIMATE.start_main_~loop_entered~0#1| 0) [2023-12-16 04:49:03,104 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 20 22) the Hoare annotation is: true [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point L21-2(lines 20 22) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 20 22) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 23 29) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 23 29) the Hoare annotation is: true [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 27) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 23 29) no Hoare annotation was computed. [2023-12-16 04:49:03,104 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2023-12-16 04:49:03,106 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2023-12-16 04:49:03,107 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:49:03,116 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated [2023-12-16 04:49:03,116 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated [2023-12-16 04:49:03,117 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated [2023-12-16 04:49:03,117 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated [2023-12-16 04:49:03,117 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][~#array~0!offset + ~index2~0 % 4294967296 * 4] could not be translated [2023-12-16 04:49:03,117 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][~#array~0!offset + ~index1~0 % 4294967296 * 4] could not be translated [2023-12-16 04:49:03,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:49:03 BoogieIcfgContainer [2023-12-16 04:49:03,118 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:49:03,118 INFO L158 Benchmark]: Toolchain (without parser) took 6969.13ms. Allocated memory was 250.6MB in the beginning and 335.5MB in the end (delta: 84.9MB). Free memory was 213.2MB in the beginning and 192.9MB in the end (delta: 20.2MB). Peak memory consumption was 106.2MB. Max. memory is 8.0GB. [2023-12-16 04:49:03,118 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 185.6MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:49:03,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.08ms. Allocated memory is still 250.6MB. Free memory was 213.2MB in the beginning and 201.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 04:49:03,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.12ms. Allocated memory is still 250.6MB. Free memory was 201.6MB in the beginning and 200.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 04:49:03,119 INFO L158 Benchmark]: Boogie Preprocessor took 43.23ms. Allocated memory is still 250.6MB. Free memory was 200.1MB in the beginning and 198.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 04:49:03,119 INFO L158 Benchmark]: RCFGBuilder took 273.26ms. Allocated memory is still 250.6MB. Free memory was 198.0MB in the beginning and 184.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-16 04:49:03,119 INFO L158 Benchmark]: TraceAbstraction took 6439.82ms. Allocated memory was 250.6MB in the beginning and 335.5MB in the end (delta: 84.9MB). Free memory was 183.8MB in the beginning and 192.9MB in the end (delta: -9.1MB). Peak memory consumption was 76.8MB. Max. memory is 8.0GB. [2023-12-16 04:49:03,120 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 185.6MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 180.08ms. Allocated memory is still 250.6MB. Free memory was 213.2MB in the beginning and 201.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.12ms. Allocated memory is still 250.6MB. Free memory was 201.6MB in the beginning and 200.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.23ms. Allocated memory is still 250.6MB. Free memory was 200.1MB in the beginning and 198.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 273.26ms. Allocated memory is still 250.6MB. Free memory was 198.0MB in the beginning and 184.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 6439.82ms. Allocated memory was 250.6MB in the beginning and 335.5MB in the end (delta: 84.9MB). Free memory was 183.8MB in the beginning and 192.9MB in the end (delta: -9.1MB). Peak memory consumption was 76.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][~#array~0!offset + ~index2~0 % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][~#array~0!offset + ~index1~0 % 4294967296 * 4] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 6, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 696 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 551 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 711 IncrementalHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 145 mSDtfsCounter, 711 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=5, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 36 PreInvPairs, 58 NumberOfFragments, 301 HoareAnnotationTreeSize, 36 FormulaSimplifications, 189 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FormulaSimplificationsInter, 247 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 337 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 397 ConstructedInterpolants, 0 QuantifiedInterpolants, 859 SizeOfPredicates, 13 NumberOfNonLiveVariables, 484 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 196/287 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((loop_entered == 0) && (i == 0)) || ((loop_entered == 0) && (((4294967295 + i) % 4294967296) <= 99999))) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((index2 + 1) % 4294967296) <= 99999) && ((((index1 + 4294967295) % 4294967296) + 1) <= ((index2 + 1) % 4294967296))) || ((loop_entered == 0) && ((index2 % 4294967296) <= 99999))) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (((((index2 + 1) % 4294967296) <= 99999) && ((((index1 + 4294967295) % 4294967296) + 1) <= ((index2 + 1) % 4294967296))) || ((((index1 % 4294967296) + 1) <= (index2 % 4294967296)) && ((index2 % 4294967296) <= 99999))) RESULT: Ultimate proved your program to be correct! [2023-12-16 04:49:03,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...