/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/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 23:01:44,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 23:01:44,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 23:01:44,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 23:01:44,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 23:01:44,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 23:01:44,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 23:01:44,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 23:01:44,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 23:01:44,483 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 23:01:44,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 23:01:44,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 23:01:44,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 23:01:44,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 23:01:44,484 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 23:01:44,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 23:01:44,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 23:01:44,485 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 23:01:44,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 23:01:44,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 23:01:44,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 23:01:44,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 23:01:44,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 23:01:44,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 23:01:44,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 23:01:44,491 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 23:01:44,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 23:01:44,491 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 23:01:44,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 23:01:44,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 23:01:44,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 23:01:44,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 23:01:44,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 23:01:44,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 23:01:44,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 23:01:44,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 23:01:44,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 23:01:44,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 23:01:44,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 23:01:44,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 23:01:44,494 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 23:01:44,500 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 23:01:44,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 23:01:44,500 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 23:01:44,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 23:01:44,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 23:01:44,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 23:01:44,711 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 23:01:44,711 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 23:01:44,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i [2023-12-20 23:01:45,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 23:01:45,933 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 23:01:45,933 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i [2023-12-20 23:01:45,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b41aa38/78755d8996b44802bec81dec933a4fc4/FLAG101bc0b73 [2023-12-20 23:01:45,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b41aa38/78755d8996b44802bec81dec933a4fc4 [2023-12-20 23:01:45,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 23:01:45,950 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 23:01:45,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 23:01:45,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 23:01:45,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 23:01:45,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:01:45" (1/1) ... [2023-12-20 23:01:45,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28cb08b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:45, skipping insertion in model container [2023-12-20 23:01:45,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:01:45" (1/1) ... [2023-12-20 23:01:45,972 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 23:01:46,081 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i[915,928] [2023-12-20 23:01:46,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 23:01:46,133 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 23:01:46,142 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i[915,928] [2023-12-20 23:01:46,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 23:01:46,164 INFO L206 MainTranslator]: Completed translation [2023-12-20 23:01:46,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46 WrapperNode [2023-12-20 23:01:46,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 23:01:46,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 23:01:46,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 23:01:46,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 23:01:46,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,202 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-12-20 23:01:46,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 23:01:46,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 23:01:46,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 23:01:46,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 23:01:46,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,223 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 23:01:46,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 23:01:46,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 23:01:46,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 23:01:46,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 23:01:46,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (1/1) ... [2023-12-20 23:01:46,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 23:01:46,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:01:46,283 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) [2023-12-20 23:01:46,293 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 [2023-12-20 23:01:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 23:01:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 23:01:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 23:01:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 23:01:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 23:01:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 23:01:46,376 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 23:01:46,378 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 23:01:46,577 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 23:01:46,622 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 23:01:46,622 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 23:01:46,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:01:46 BoogieIcfgContainer [2023-12-20 23:01:46,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 23:01:46,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 23:01:46,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 23:01:46,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 23:01:46,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:01:45" (1/3) ... [2023-12-20 23:01:46,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e5010c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:01:46, skipping insertion in model container [2023-12-20 23:01:46,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:01:46" (2/3) ... [2023-12-20 23:01:46,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e5010c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:01:46, skipping insertion in model container [2023-12-20 23:01:46,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:01:46" (3/3) ... [2023-12-20 23:01:46,637 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-25.i [2023-12-20 23:01:46,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 23:01:46,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 23:01:46,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 23:01:46,688 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;@ee260f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 23:01:46,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 23:01:46,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-20 23:01:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 23:01:46,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:01:46,705 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:01:46,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:01:46,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:01:46,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1188313540, now seen corresponding path program 1 times [2023-12-20 23:01:46,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:01:46,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920134172] [2023-12-20 23:01:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:01:46,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:01:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:01:46,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:01:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920134172] [2023-12-20 23:01:46,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 23:01:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574648030] [2023-12-20 23:01:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:01:46,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:01:46,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:01:46,841 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) [2023-12-20 23:01:46,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 23:01:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:01:46,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 23:01:46,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 23:01:46,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2023-12-20 23:01:46,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 23:01:46,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574648030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:01:46,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:01:46,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 23:01:46,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359068298] [2023-12-20 23:01:46,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:01:47,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 23:01:47,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:01:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 23:01:47,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 23:01:47,028 INFO L87 Difference]: Start difference. First operand has 52 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-20 23:01:47,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:01:47,067 INFO L93 Difference]: Finished difference Result 101 states and 183 transitions. [2023-12-20 23:01:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 23:01:47,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 135 [2023-12-20 23:01:47,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:01:47,076 INFO L225 Difference]: With dead ends: 101 [2023-12-20 23:01:47,076 INFO L226 Difference]: Without dead ends: 50 [2023-12-20 23:01:47,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 23:01:47,082 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 23:01:47,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 23:01:47,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-20 23:01:47,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-20 23:01:47,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-20 23:01:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 76 transitions. [2023-12-20 23:01:47,130 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 76 transitions. Word has length 135 [2023-12-20 23:01:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:01:47,131 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 76 transitions. [2023-12-20 23:01:47,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-20 23:01:47,132 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 76 transitions. [2023-12-20 23:01:47,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 23:01:47,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:01:47,134 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:01:47,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 23:01:47,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-20 23:01:47,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:01:47,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:01:47,341 INFO L85 PathProgramCache]: Analyzing trace with hash 807068218, now seen corresponding path program 1 times [2023-12-20 23:01:47,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:01:47,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045027372] [2023-12-20 23:01:47,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:01:47,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:01:47,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 23:01:47,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914083380] [2023-12-20 23:01:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:01:47,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:01:47,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:01:47,388 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) [2023-12-20 23:01:47,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 23:01:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:01:47,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-20 23:01:47,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 23:02:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-20 23:02:07,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 23:02:50,177 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_~var_1_1~0 4294967296)) (.cse5 (+ c_~var_1_13~0 1)) (.cse6 (+ (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296) 1))) (let ((.cse1 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse5) (< (mod (div 127 ~var_1_9~0) 4294967296) .cse6)))) (.cse0 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse2 (= (mod c_~var_1_5~0 4294967296) .cse3))) (and (or .cse0 .cse1) (or .cse1 .cse2) (forall ((~var_1_9~0 Int)) (let ((.cse4 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse3 .cse4) (< ~var_1_9~0 .cse5) (< .cse4 .cse6)))) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse0 .cse2 (<= (+ .cse3 1) .cse7)) (< .cse7 .cse6)))))) is different from false [2023-12-20 23:02:54,349 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_1~0 4294967296))) (let ((.cse2 (+ .cse4 1))) (let ((.cse0 (= (mod c_~var_1_5~0 4294967296) .cse4)) (.cse3 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse1 (forall ((~var_1_9~0 Int)) (or (< (mod (div 127 ~var_1_9~0) 4294967296) .cse2) (< ~var_1_9~0 (+ c_~var_1_13~0 1)))))) (and (or .cse0 .cse1) (or (< (mod (div 127 c_~var_1_13~0) 4294967296) .cse2) (and .cse3 .cse0)) (or .cse3 .cse1))))) is different from false [2023-12-20 23:02:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 23:02:54,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:02:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045027372] [2023-12-20 23:02:54,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 23:02:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914083380] [2023-12-20 23:02:54,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914083380] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 23:02:54,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 23:02:54,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-12-20 23:02:54,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001811163] [2023-12-20 23:02:54,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:02:54,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 23:02:54,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:02:54,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 23:02:54,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=164, Unknown=2, NotChecked=54, Total=272 [2023-12-20 23:02:54,427 INFO L87 Difference]: Start difference. First operand 50 states and 76 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-20 23:02:56,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:02:56,105 INFO L93 Difference]: Finished difference Result 75 states and 106 transitions. [2023-12-20 23:02:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 23:02:56,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2023-12-20 23:02:56,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:02:56,108 INFO L225 Difference]: With dead ends: 75 [2023-12-20 23:02:56,108 INFO L226 Difference]: Without dead ends: 73 [2023-12-20 23:02:56,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=62, Invalid=216, Unknown=2, NotChecked=62, Total=342 [2023-12-20 23:02:56,109 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 23:02:56,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 367 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 102 Unchecked, 1.1s Time] [2023-12-20 23:02:56,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-20 23:02:56,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2023-12-20 23:02:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 37 states have internal predecessors, (43), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 23:02:56,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2023-12-20 23:02:56,120 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 135 [2023-12-20 23:02:56,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:02:56,120 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2023-12-20 23:02:56,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-20 23:02:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2023-12-20 23:02:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 23:02:56,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:02:56,122 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:02:56,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 23:02:56,322 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,SelfDestructingSolverStorable1 [2023-12-20 23:02:56,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:02:56,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:02:56,323 INFO L85 PathProgramCache]: Analyzing trace with hash 807127800, now seen corresponding path program 1 times [2023-12-20 23:02:56,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:02:56,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964059422] [2023-12-20 23:02:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:02:56,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:02:56,358 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 23:02:56,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796228874] [2023-12-20 23:02:56,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:02:56,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:02:56,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:02:56,359 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) [2023-12-20 23:02:56,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 23:02:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:02:56,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-20 23:02:56,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 23:04:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-20 23:04:00,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 23:04:47,846 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 119 DAG size of output: 76 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 23:04:58,137 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_~var_1_1~0 4294967296)) (.cse5 (+ c_~var_1_13~0 1)) (.cse6 (+ (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296) 1))) (let ((.cse1 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse5) (< (mod (div 127 ~var_1_9~0) 4294967296) .cse6)))) (.cse0 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse2 (= (mod c_~var_1_5~0 4294967296) .cse3))) (and (or .cse0 .cse1) (or .cse1 .cse2) (forall ((~var_1_9~0 Int)) (let ((.cse4 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse3 .cse4) (< ~var_1_9~0 .cse5) (< .cse4 .cse6)))) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse0 .cse2 (<= (+ .cse3 1) .cse7)) (< .cse7 .cse6)))))) is different from false [2023-12-20 23:05:02,937 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_1~0 4294967296))) (let ((.cse2 (+ .cse4 1))) (let ((.cse0 (= (mod c_~var_1_5~0 4294967296) .cse4)) (.cse3 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse1 (forall ((~var_1_9~0 Int)) (or (< (mod (div 127 ~var_1_9~0) 4294967296) .cse2) (< ~var_1_9~0 (+ c_~var_1_13~0 1)))))) (and (or .cse0 .cse1) (or (< (mod (div 127 c_~var_1_13~0) 4294967296) .cse2) (and .cse3 .cse0)) (or .cse3 .cse1))))) is different from false [2023-12-20 23:05:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 23:05:03,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:05:03,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964059422] [2023-12-20 23:05:03,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 23:05:03,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796228874] [2023-12-20 23:05:03,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796228874] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 23:05:03,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 23:05:03,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-20 23:05:03,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686030919] [2023-12-20 23:05:03,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:05:03,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 23:05:03,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:05:03,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 23:05:03,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=122, Unknown=2, NotChecked=46, Total=210 [2023-12-20 23:05:03,029 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-20 23:05:06,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:05:06,331 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2023-12-20 23:05:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 23:05:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2023-12-20 23:05:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:05:06,335 INFO L225 Difference]: With dead ends: 72 [2023-12-20 23:05:06,335 INFO L226 Difference]: Without dead ends: 70 [2023-12-20 23:05:06,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=45, Invalid=143, Unknown=2, NotChecked=50, Total=240 [2023-12-20 23:05:06,336 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 4 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 23:05:06,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 339 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 64 Unchecked, 1.1s Time] [2023-12-20 23:05:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-20 23:05:06,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2023-12-20 23:05:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 39 states have internal predecessors, (45), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 23:05:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2023-12-20 23:05:06,354 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 135 [2023-12-20 23:05:06,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:05:06,356 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2023-12-20 23:05:06,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-20 23:05:06,357 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2023-12-20 23:05:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 23:05:06,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:05:06,362 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:05:06,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 23:05:06,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:05:06,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:05:06,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:05:06,573 INFO L85 PathProgramCache]: Analyzing trace with hash 808915260, now seen corresponding path program 1 times [2023-12-20 23:05:06,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:05:06,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928761080] [2023-12-20 23:05:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:05:06,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:05:06,610 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 23:05:06,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894127939] [2023-12-20 23:05:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:05:06,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:05:06,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:05:06,611 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) [2023-12-20 23:05:06,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 23:05:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:05:06,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-20 23:05:06,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 23:05:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-20 23:05:17,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 23:06:02,906 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (mod c_~var_1_1~0 4294967296)) (.cse2 (+ c_~var_1_13~0 1)) (.cse3 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296))) (let ((.cse4 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse2) (< .cse3 (mod (div 127 ~var_1_9~0) 4294967296))))) (.cse6 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse5 (= (mod c_~var_1_5~0 4294967296) .cse1))) (and (forall ((~var_1_9~0 Int)) (let ((.cse0 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse0 (+ .cse1 1)) (< ~var_1_9~0 .cse2) (< .cse3 .cse0)))) (or .cse4 .cse5) (or .cse4 .cse6) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse6 .cse5 (<= .cse7 .cse1)) (< .cse3 .cse7)))))) is different from false [2023-12-20 23:06:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 23:06:04,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:06:04,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928761080] [2023-12-20 23:06:04,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 23:06:04,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894127939] [2023-12-20 23:06:04,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894127939] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 23:06:04,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 23:06:04,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-12-20 23:06:04,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500861848] [2023-12-20 23:06:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:06:04,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 23:06:04,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:06:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 23:06:04,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=185, Unknown=1, NotChecked=28, Total=272 [2023-12-20 23:06:04,324 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-20 23:06:09,223 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296)) (.cse2 (mod c_~var_1_1~0 4294967296)) (.cse5 (+ c_~var_1_13~0 1))) (let ((.cse7 (forall ((~var_1_9~0 Int)) (or (< .cse2 (mod (div 127 ~var_1_9~0) 4294967296)) (< ~var_1_9~0 .cse5)))) (.cse8 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse5) (< .cse6 (mod (div 127 ~var_1_9~0) 4294967296))))) (.cse0 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse1 (= (mod c_~var_1_5~0 4294967296) .cse2)) (.cse3 (mod (div 127 c_~var_1_13~0) 4294967296))) (and (or (and .cse0 .cse1) (< .cse2 .cse3)) (forall ((~var_1_9~0 Int)) (let ((.cse4 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse4 (+ .cse2 1)) (< ~var_1_9~0 .cse5) (< .cse6 .cse4)))) (or .cse1 .cse7) (or .cse0 .cse7) (or .cse8 .cse1) (or .cse8 .cse0) (or (and .cse0 .cse1 (<= .cse3 .cse2)) (< .cse6 .cse3))))) is different from false [2023-12-20 23:06:10,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:06:10,431 INFO L93 Difference]: Finished difference Result 91 states and 126 transitions. [2023-12-20 23:06:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 23:06:10,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2023-12-20 23:06:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:06:10,434 INFO L225 Difference]: With dead ends: 91 [2023-12-20 23:06:10,434 INFO L226 Difference]: Without dead ends: 89 [2023-12-20 23:06:10,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=72, Invalid=240, Unknown=2, NotChecked=66, Total=380 [2023-12-20 23:06:10,435 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 35 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 23:06:10,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 288 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 44 Invalid, 0 Unknown, 55 Unchecked, 0.8s Time] [2023-12-20 23:06:10,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-20 23:06:10,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 69. [2023-12-20 23:06:10,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 23:06:10,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 101 transitions. [2023-12-20 23:06:10,444 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 101 transitions. Word has length 135 [2023-12-20 23:06:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:06:10,444 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 101 transitions. [2023-12-20 23:06:10,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-20 23:06:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 101 transitions. [2023-12-20 23:06:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 23:06:10,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:06:10,446 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:06:10,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 23:06:10,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:06:10,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:06:10,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:06:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash 808974842, now seen corresponding path program 1 times [2023-12-20 23:06:10,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:06:10,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897244396] [2023-12-20 23:06:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:06:10,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:06:10,667 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 23:06:10,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704892656] [2023-12-20 23:06:10,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:06:10,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:06:10,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:06:10,687 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) [2023-12-20 23:06:10,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 23:06:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:06:10,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-20 23:06:10,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 23:06:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-20 23:06:42,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 23:07:51,818 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (mod c_~var_1_1~0 4294967296)) (.cse2 (+ c_~var_1_13~0 1)) (.cse3 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296))) (let ((.cse4 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse2) (< .cse3 (mod (div 127 ~var_1_9~0) 4294967296))))) (.cse6 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse5 (= (mod c_~var_1_5~0 4294967296) .cse1))) (and (forall ((~var_1_9~0 Int)) (let ((.cse0 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse0 (+ .cse1 1)) (< ~var_1_9~0 .cse2) (< .cse3 .cse0)))) (or .cse4 .cse5) (or .cse4 .cse6) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse6 .cse5 (<= .cse7 .cse1)) (< .cse3 .cse7)))))) is different from false [2023-12-20 23:07:52,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 23:07:52,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:07:52,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897244396] [2023-12-20 23:07:52,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 23:07:52,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704892656] [2023-12-20 23:07:52,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704892656] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 23:07:52,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 23:07:52,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-20 23:07:52,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101954554] [2023-12-20 23:07:52,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:07:52,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 23:07:52,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:07:52,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 23:07:52,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=139, Unknown=1, NotChecked=24, Total=210 [2023-12-20 23:07:52,979 INFO L87 Difference]: Start difference. First operand 69 states and 101 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-20 23:07:53,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=46, Invalid=139, Unknown=1, NotChecked=24, Total=210 [2023-12-20 23:07:53,508 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 23:07:53,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 12 Unchecked, 0.4s Time] [2023-12-20 23:07:53,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 139 [2023-12-20 23:07:53,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 23:07:53,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:07:53,710 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Broken pipe at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2023-12-20 23:07:53,713 INFO L158 Benchmark]: Toolchain (without parser) took 367762.83ms. Allocated memory was 315.6MB in the beginning and 1.1GB in the end (delta: 767.6MB). Free memory was 266.8MB in the beginning and 527.4MB in the end (delta: -260.6MB). Peak memory consumption was 508.0MB. Max. memory is 8.0GB. [2023-12-20 23:07:53,713 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 195.0MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 23:07:53,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.73ms. Allocated memory is still 315.6MB. Free memory was 266.8MB in the beginning and 254.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-20 23:07:53,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.66ms. Allocated memory is still 315.6MB. Free memory was 254.2MB in the beginning and 252.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 23:07:53,714 INFO L158 Benchmark]: Boogie Preprocessor took 34.82ms. Allocated memory is still 315.6MB. Free memory was 252.1MB in the beginning and 249.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 23:07:53,715 INFO L158 Benchmark]: RCFGBuilder took 385.02ms. Allocated memory is still 315.6MB. Free memory was 249.5MB in the beginning and 230.1MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-20 23:07:53,715 INFO L158 Benchmark]: TraceAbstraction took 367082.16ms. Allocated memory was 315.6MB in the beginning and 1.1GB in the end (delta: 767.6MB). Free memory was 229.5MB in the beginning and 527.4MB in the end (delta: -297.8MB). Peak memory consumption was 471.3MB. Max. memory is 8.0GB. [2023-12-20 23:07:53,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 195.0MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.73ms. Allocated memory is still 315.6MB. Free memory was 266.8MB in the beginning and 254.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.66ms. Allocated memory is still 315.6MB. Free memory was 254.2MB in the beginning and 252.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.82ms. Allocated memory is still 315.6MB. Free memory was 252.1MB in the beginning and 249.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 385.02ms. Allocated memory is still 315.6MB. Free memory was 249.5MB in the beginning and 230.1MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 367082.16ms. Allocated memory was 315.6MB in the beginning and 1.1GB in the end (delta: 767.6MB). Free memory was 229.5MB in the beginning and 527.4MB in the end (delta: -297.8MB). Peak memory consumption was 471.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...