/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/nla-digbench-scaling/geo3-ll_unwindbound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:08:40,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:08:40,675 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 05:08:40,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:08:40,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:08:40,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:08:40,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:08:40,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:08:40,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:08:40,701 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:08:40,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:08:40,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:08:40,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:08:40,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:08:40,702 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:08:40,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:08:40,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:08:40,703 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:08:40,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:08:40,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:08:40,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:08:40,706 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:08:40,706 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:08:40,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:08:40,709 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:08:40,709 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:08:40,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:08:40,710 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:08:40,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:08:40,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:08:40,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:08:40,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:08:40,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:08:40,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:08:40,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:08:40,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:08:40,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:08:40,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:08:40,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:08:40,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:08:40,712 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:08:40,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:08:40,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:08:40,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:08:40,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:08:40,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:08:40,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:08:40,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:08:40,913 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:08:40,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound20.c [2023-12-16 05:08:41,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:08:41,979 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:08:41,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound20.c [2023-12-16 05:08:41,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23dc5d5e1/c348b76400dd4161895030b29f09baf2/FLAG23c657a08 [2023-12-16 05:08:41,994 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23dc5d5e1/c348b76400dd4161895030b29f09baf2 [2023-12-16 05:08:41,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:08:42,002 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:08:42,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:08:42,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:08:42,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:08:42,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:08:41" (1/1) ... [2023-12-16 05:08:42,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612f3245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42, skipping insertion in model container [2023-12-16 05:08:42,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:08:41" (1/1) ... [2023-12-16 05:08:42,022 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:08:42,135 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound20.c[525,538] [2023-12-16 05:08:42,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:08:42,156 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:08:42,165 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound20.c[525,538] [2023-12-16 05:08:42,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:08:42,183 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:08:42,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42 WrapperNode [2023-12-16 05:08:42,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:08:42,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:08:42,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:08:42,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:08:42,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,209 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2023-12-16 05:08:42,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:08:42,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:08:42,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:08:42,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:08:42,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,217 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,227 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]. [2023-12-16 05:08:42,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:08:42,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:08:42,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:08:42,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:08:42,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (1/1) ... [2023-12-16 05:08:42,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:08:42,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:08:42,257 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 05:08:42,276 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 05:08:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:08:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:08:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:08:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:08:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 05:08:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 05:08:42,320 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:08:42,321 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:08:42,404 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:08:42,421 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:08:42,421 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:08:42,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:08:42 BoogieIcfgContainer [2023-12-16 05:08:42,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:08:42,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:08:42,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:08:42,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:08:42,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:08:41" (1/3) ... [2023-12-16 05:08:42,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb83a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:08:42, skipping insertion in model container [2023-12-16 05:08:42,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:08:42" (2/3) ... [2023-12-16 05:08:42,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb83a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:08:42, skipping insertion in model container [2023-12-16 05:08:42,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:08:42" (3/3) ... [2023-12-16 05:08:42,427 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound20.c [2023-12-16 05:08:42,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:08:42,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:08:42,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:08:42,469 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;@3273fc9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:08:42,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:08:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:08:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-16 05:08:42,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:08:42,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-16 05:08:42,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:08:42,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:08:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2138246143, now seen corresponding path program 1 times [2023-12-16 05:08:42,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:08:42,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27564239] [2023-12-16 05:08:42,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:42,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:08:42,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:08:42,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581498048] [2023-12-16 05:08:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:42,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:08:42,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:08:42,554 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 05:08:42,585 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 05:08:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:08:42,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:08:42,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:08:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:08:42,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:08:42,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:08:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27564239] [2023-12-16 05:08:42,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:08:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581498048] [2023-12-16 05:08:42,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581498048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:08:42,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:08:42,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 05:08:42,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346743280] [2023-12-16 05:08:42,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:08:42,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:08:42,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:08:42,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:08:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 05:08:42,681 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:08:42,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:08:42,695 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2023-12-16 05:08:42,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:08:42,696 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-16 05:08:42,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:08:42,700 INFO L225 Difference]: With dead ends: 27 [2023-12-16 05:08:42,700 INFO L226 Difference]: Without dead ends: 12 [2023-12-16 05:08:42,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 05:08:42,704 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:08:42,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:08:42,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-16 05:08:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-12-16 05:08:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 05:08:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-12-16 05:08:42,725 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2023-12-16 05:08:42,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:08:42,725 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-12-16 05:08:42,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:08:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-16 05:08:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 05:08:42,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:08:42,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:08:42,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:08:42,930 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 [2023-12-16 05:08:42,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:08:42,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:08:42,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1461620770, now seen corresponding path program 1 times [2023-12-16 05:08:42,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:08:42,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796169587] [2023-12-16 05:08:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:42,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:08:42,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:08:42,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779719531] [2023-12-16 05:08:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:42,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:08:42,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:08:42,962 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 05:08:42,963 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 05:08:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:08:42,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:08:42,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:08:43,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:08:43,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:08:43,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:08:43,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796169587] [2023-12-16 05:08:43,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:08:43,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779719531] [2023-12-16 05:08:43,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779719531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:08:43,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:08:43,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 05:08:43,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942651197] [2023-12-16 05:08:43,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:08:43,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:08:43,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:08:43,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:08:43,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 05:08:43,026 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:08:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:08:43,036 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2023-12-16 05:08:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 05:08:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-16 05:08:43,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:08:43,036 INFO L225 Difference]: With dead ends: 21 [2023-12-16 05:08:43,036 INFO L226 Difference]: Without dead ends: 14 [2023-12-16 05:08:43,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 05:08:43,038 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:08:43,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:08:43,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-12-16 05:08:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-12-16 05:08:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 05:08:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-12-16 05:08:43,044 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2023-12-16 05:08:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:08:43,044 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-12-16 05:08:43,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:08:43,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-16 05:08:43,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 05:08:43,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:08:43,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:08:43,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 05:08:43,250 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 [2023-12-16 05:08:43,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:08:43,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:08:43,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1463408230, now seen corresponding path program 1 times [2023-12-16 05:08:43,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:08:43,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432390080] [2023-12-16 05:08:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:43,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:08:43,259 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:08:43,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147982928] [2023-12-16 05:08:43,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:43,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:08:43,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:08:43,263 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 05:08:43,276 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 05:08:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:08:43,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 05:08:43,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:08:43,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:08:43,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:08:43,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:08:43,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432390080] [2023-12-16 05:08:43,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:08:43,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147982928] [2023-12-16 05:08:43,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147982928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:08:43,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:08:43,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 05:08:43,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175294936] [2023-12-16 05:08:43,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:08:43,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:08:43,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:08:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:08:43,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:08:43,375 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:08:43,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:08:43,401 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-12-16 05:08:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:08:43,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-16 05:08:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:08:43,402 INFO L225 Difference]: With dead ends: 23 [2023-12-16 05:08:43,402 INFO L226 Difference]: Without dead ends: 20 [2023-12-16 05:08:43,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:08:43,403 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:08:43,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:08:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-16 05:08:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-16 05:08:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:08:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-12-16 05:08:43,410 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 7 [2023-12-16 05:08:43,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:08:43,411 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-12-16 05:08:43,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:08:43,411 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-12-16 05:08:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 05:08:43,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:08:43,411 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:08:43,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:08:43,624 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 [2023-12-16 05:08:43,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:08:43,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:08:43,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1726160663, now seen corresponding path program 1 times [2023-12-16 05:08:43,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:08:43,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800021784] [2023-12-16 05:08:43,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:43,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:08:43,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:08:43,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887512298] [2023-12-16 05:08:43,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:43,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:08:43,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:08:43,643 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 05:08:43,652 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 05:08:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:08:43,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 05:08:43,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:08:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:08:43,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:08:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:08:43,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:08:43,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800021784] [2023-12-16 05:08:43,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:08:43,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887512298] [2023-12-16 05:08:43,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887512298] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:08:43,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 05:08:43,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-12-16 05:08:43,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241350142] [2023-12-16 05:08:43,815 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 05:08:43,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:08:43,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:08:43,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:08:43,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:08:43,820 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:08:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:08:43,879 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2023-12-16 05:08:43,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 05:08:43,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-12-16 05:08:43,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:08:43,880 INFO L225 Difference]: With dead ends: 51 [2023-12-16 05:08:43,880 INFO L226 Difference]: Without dead ends: 44 [2023-12-16 05:08:43,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:08:43,881 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:08:43,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 63 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:08:43,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-16 05:08:43,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2023-12-16 05:08:43,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.25) internal successors, (35), 31 states have internal predecessors, (35), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 05:08:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2023-12-16 05:08:43,887 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 15 [2023-12-16 05:08:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:08:43,887 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2023-12-16 05:08:43,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:08:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2023-12-16 05:08:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 05:08:43,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:08:43,888 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:08:43,893 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 05:08:44,088 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 [2023-12-16 05:08:44,089 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:08:44,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:08:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1724373203, now seen corresponding path program 1 times [2023-12-16 05:08:44,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:08:44,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53960674] [2023-12-16 05:08:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:44,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:08:44,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:08:44,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644449414] [2023-12-16 05:08:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:08:44,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:08:44,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:08:44,099 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 05:08:44,099 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 05:08:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:08:44,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 05:08:44,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:08:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:08:44,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:08:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:08:48,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:08:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53960674] [2023-12-16 05:08:48,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:08:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644449414] [2023-12-16 05:08:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644449414] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:08:48,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 05:08:48,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-16 05:08:48,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263810336] [2023-12-16 05:08:48,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 05:08:48,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:08:48,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:08:48,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:08:48,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2023-12-16 05:08:48,553 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:08:57,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 05:09:01,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 05:09:05,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 05:09:09,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 05:09:13,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 05:09:17,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 05:09:21,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 05:09:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:09:21,315 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2023-12-16 05:09:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:09:21,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-12-16 05:09:21,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:09:21,317 INFO L225 Difference]: With dead ends: 49 [2023-12-16 05:09:21,317 INFO L226 Difference]: Without dead ends: 44 [2023-12-16 05:09:21,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=35, Invalid=96, Unknown=1, NotChecked=0, Total=132 [2023-12-16 05:09:21,318 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 10 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:09:21,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 81 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 28.7s Time] [2023-12-16 05:09:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-16 05:09:21,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-12-16 05:09:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.09375) internal successors, (35), 33 states have internal predecessors, (35), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 05:09:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2023-12-16 05:09:21,327 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 15 [2023-12-16 05:09:21,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:09:21,328 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2023-12-16 05:09:21,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:09:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2023-12-16 05:09:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 05:09:21,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:09:21,329 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-12-16 05:09:21,339 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 05:09:21,529 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 [2023-12-16 05:09:21,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:09:21,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:09:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1912703294, now seen corresponding path program 2 times [2023-12-16 05:09:21,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:09:21,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272659156] [2023-12-16 05:09:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:09:21,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:09:21,537 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:09:21,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481189505] [2023-12-16 05:09:21,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 05:09:21,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:09:21,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:09:21,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:09:21,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:09:21,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 05:09:21,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 05:09:21,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 05:09:21,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:09:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:09:21,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:09:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:09:21,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:09:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272659156] [2023-12-16 05:09:21,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:09:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481189505] [2023-12-16 05:09:21,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481189505] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:09:21,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 05:09:21,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 05:09:21,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579302904] [2023-12-16 05:09:21,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 05:09:21,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 05:09:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:09:21,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 05:09:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:09:21,769 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-16 05:09:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:09:21,908 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2023-12-16 05:09:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 05:09:21,908 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 39 [2023-12-16 05:09:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:09:21,909 INFO L225 Difference]: With dead ends: 108 [2023-12-16 05:09:21,909 INFO L226 Difference]: Without dead ends: 101 [2023-12-16 05:09:21,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2023-12-16 05:09:21,910 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 67 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:09:21,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 91 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:09:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-16 05:09:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 91. [2023-12-16 05:09:21,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.203125) internal successors, (77), 70 states have internal predecessors, (77), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 05:09:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2023-12-16 05:09:21,922 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 39 [2023-12-16 05:09:21,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:09:21,922 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2023-12-16 05:09:21,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-16 05:09:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2023-12-16 05:09:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 05:09:21,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:09:21,923 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2023-12-16 05:09:21,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 05:09:22,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:09:22,129 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:09:22,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:09:22,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1914490754, now seen corresponding path program 2 times [2023-12-16 05:09:22,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:09:22,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27770007] [2023-12-16 05:09:22,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:09:22,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:09:22,135 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:09:22,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214859121] [2023-12-16 05:09:22,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 05:09:22,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:09:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:09:22,136 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:09:22,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 05:09:56,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 05:09:56,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 05:09:56,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-16 05:09:56,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:09:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 14 proven. 39 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 05:09:57,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 05:10:04,046 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:10:04,081 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:10:05,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 05:10:05,281 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 05:10:05,287 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:10:05,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:10:05,287 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 40 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-16 05:10:05,290 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-12-16 05:10:05,292 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:10:05,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:10:05 BoogieIcfgContainer [2023-12-16 05:10:05,293 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:10:05,293 INFO L158 Benchmark]: Toolchain (without parser) took 83291.86ms. Allocated memory was 198.2MB in the beginning and 373.3MB in the end (delta: 175.1MB). Free memory was 148.4MB in the beginning and 305.6MB in the end (delta: -157.2MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. [2023-12-16 05:10:05,294 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:10:05,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.52ms. Allocated memory is still 198.2MB. Free memory was 148.4MB in the beginning and 137.3MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 05:10:05,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.96ms. Allocated memory is still 198.2MB. Free memory was 137.3MB in the beginning and 135.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 05:10:05,294 INFO L158 Benchmark]: Boogie Preprocessor took 23.37ms. Allocated memory is still 198.2MB. Free memory was 135.8MB in the beginning and 134.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 05:10:05,294 INFO L158 Benchmark]: RCFGBuilder took 187.61ms. Allocated memory is still 198.2MB. Free memory was 134.3MB in the beginning and 122.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 05:10:05,295 INFO L158 Benchmark]: TraceAbstraction took 82870.16ms. Allocated memory was 198.2MB in the beginning and 373.3MB in the end (delta: 175.1MB). Free memory was 122.2MB in the beginning and 305.6MB in the end (delta: -183.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:10:05,295 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 180.52ms. Allocated memory is still 198.2MB. Free memory was 148.4MB in the beginning and 137.3MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.96ms. Allocated memory is still 198.2MB. Free memory was 137.3MB in the beginning and 135.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.37ms. Allocated memory is still 198.2MB. Free memory was 135.8MB in the beginning and 134.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 187.61ms. Allocated memory is still 198.2MB. Free memory was 134.3MB in the beginning and 122.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 82870.16ms. Allocated memory was 198.2MB in the beginning and 373.3MB in the end (delta: 175.1MB). Free memory was 122.2MB in the beginning and 305.6MB in the end (delta: -183.4MB). There was no memory consumed. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 17). Cancelled while NwaCegarLoop was analyzing trace of length 40 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 82.8s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 33.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 28.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 316 SdHoareTripleChecker+Invalid, 28.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 68 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=6, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 550 SizeOfPredicates, 7 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 48/146 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-12-16 05:10:05,310 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 137