/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/lcm2_unwindbound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 07:53:12,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 07:53:13,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 07:53:13,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 07:53:13,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 07:53:13,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 07:53:13,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 07:53:13,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 07:53:13,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 07:53:13,062 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 07:53:13,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 07:53:13,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 07:53:13,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 07:53:13,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 07:53:13,064 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 07:53:13,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 07:53:13,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 07:53:13,065 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 07:53:13,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 07:53:13,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 07:53:13,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 07:53:13,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 07:53:13,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 07:53:13,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 07:53:13,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 07:53:13,066 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 07:53:13,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 07:53:13,066 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 07:53:13,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 07:53:13,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 07:53:13,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 07:53:13,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 07:53:13,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 07:53:13,069 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 07:53:13,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 07:53:13,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 07:53:13,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 07:53:13,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 07:53:13,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 07:53:13,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 07:53:13,280 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 07:53:13,281 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 07:53:13,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm2_unwindbound50.c [2023-12-21 07:53:14,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 07:53:14,451 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 07:53:14,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm2_unwindbound50.c [2023-12-21 07:53:14,456 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a67a2fe75/109895a17d364535976028bb72ac61da/FLAGfd184fb13 [2023-12-21 07:53:14,465 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a67a2fe75/109895a17d364535976028bb72ac61da [2023-12-21 07:53:14,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 07:53:14,468 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 07:53:14,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 07:53:14,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 07:53:14,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 07:53:14,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1935a8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14, skipping insertion in model container [2023-12-21 07:53:14,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 07:53:14,619 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/lcm2_unwindbound50.c[537,550] [2023-12-21 07:53:14,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 07:53:14,645 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 07:53:14,657 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/lcm2_unwindbound50.c[537,550] [2023-12-21 07:53:14,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 07:53:14,680 INFO L206 MainTranslator]: Completed translation [2023-12-21 07:53:14,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14 WrapperNode [2023-12-21 07:53:14,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 07:53:14,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 07:53:14,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 07:53:14,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 07:53:14,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,709 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-12-21 07:53:14,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 07:53:14,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 07:53:14,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 07:53:14,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 07:53:14,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,736 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2023-12-21 07:53:14,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 07:53:14,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 07:53:14,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 07:53:14,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 07:53:14,758 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (1/1) ... [2023-12-21 07:53:14,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 07:53:14,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 07:53:14,779 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) [2023-12-21 07:53:14,800 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 [2023-12-21 07:53:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 07:53:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 07:53:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 07:53:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 07:53:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 07:53:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 07:53:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 07:53:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-21 07:53:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-21 07:53:14,878 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 07:53:14,890 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 07:53:15,046 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 07:53:15,064 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 07:53:15,064 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 07:53:15,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 07:53:15 BoogieIcfgContainer [2023-12-21 07:53:15,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 07:53:15,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 07:53:15,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 07:53:15,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 07:53:15,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 07:53:14" (1/3) ... [2023-12-21 07:53:15,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a67751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 07:53:15, skipping insertion in model container [2023-12-21 07:53:15,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:53:14" (2/3) ... [2023-12-21 07:53:15,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a67751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 07:53:15, skipping insertion in model container [2023-12-21 07:53:15,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 07:53:15" (3/3) ... [2023-12-21 07:53:15,071 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_unwindbound50.c [2023-12-21 07:53:15,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 07:53:15,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 07:53:15,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 07:53:15,130 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;@1172fa02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 07:53:15,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 07:53:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-21 07:53:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-21 07:53:15,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 07:53:15,140 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 07:53:15,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 07:53:15,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 07:53:15,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1925762066, now seen corresponding path program 1 times [2023-12-21 07:53:15,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 07:53:15,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859568298] [2023-12-21 07:53:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 07:53:15,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 07:53:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 07:53:15,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 07:53:15,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859568298] [2023-12-21 07:53:15,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 07:53:15,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553607772] [2023-12-21 07:53:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 07:53:15,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 07:53:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 07:53:15,251 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) [2023-12-21 07:53:15,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 07:53:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 07:53:15,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 07:53:15,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 07:53:15,326 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 07:53:15,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 07:53:15,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553607772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 07:53:15,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 07:53:15,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 07:53:15,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802686285] [2023-12-21 07:53:15,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 07:53:15,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 07:53:15,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 07:53:15,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 07:53:15,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 07:53:15,355 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-21 07:53:15,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 07:53:15,376 INFO L93 Difference]: Finished difference Result 46 states and 69 transitions. [2023-12-21 07:53:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 07:53:15,378 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2023-12-21 07:53:15,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 07:53:15,383 INFO L225 Difference]: With dead ends: 46 [2023-12-21 07:53:15,383 INFO L226 Difference]: Without dead ends: 22 [2023-12-21 07:53:15,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 07:53:15,390 INFO L413 NwaCegarLoop]: 28 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, 28 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 [2023-12-21 07:53:15,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 07:53:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-21 07:53:15,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-21 07:53:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-21 07:53:15,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2023-12-21 07:53:15,420 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 27 [2023-12-21 07:53:15,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 07:53:15,421 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2023-12-21 07:53:15,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-21 07:53:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-12-21 07:53:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-21 07:53:15,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 07:53:15,423 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 07:53:15,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 07:53:15,629 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 [2023-12-21 07:53:15,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 07:53:15,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 07:53:15,630 INFO L85 PathProgramCache]: Analyzing trace with hash 924491886, now seen corresponding path program 1 times [2023-12-21 07:53:15,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 07:53:15,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737808807] [2023-12-21 07:53:15,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 07:53:15,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 07:53:15,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 07:53:15,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104371159] [2023-12-21 07:53:15,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 07:53:15,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 07:53:15,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 07:53:15,662 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) [2023-12-21 07:53:15,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 07:53:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 07:53:15,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 07:53:15,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 07:53:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-21 07:53:15,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 07:53:15,935 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 07:53:15,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 07:53:15,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737808807] [2023-12-21 07:53:15,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 07:53:15,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104371159] [2023-12-21 07:53:15,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104371159] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 07:53:15,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 07:53:15,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-21 07:53:15,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112614117] [2023-12-21 07:53:15,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 07:53:15,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 07:53:15,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 07:53:15,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 07:53:15,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 07:53:15,940 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 07:53:20,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-21 07:53:24,049 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 [] [2023-12-21 07:53:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 07:53:24,736 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2023-12-21 07:53:24,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 07:53:24,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-12-21 07:53:24,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 07:53:24,738 INFO L225 Difference]: With dead ends: 34 [2023-12-21 07:53:24,738 INFO L226 Difference]: Without dead ends: 31 [2023-12-21 07:53:24,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 07:53:24,740 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-12-21 07:53:24,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2023-12-21 07:53:24,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-21 07:53:24,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2023-12-21 07:53:24,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-21 07:53:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2023-12-21 07:53:24,747 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 28 [2023-12-21 07:53:24,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 07:53:24,748 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-12-21 07:53:24,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 07:53:24,748 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2023-12-21 07:53:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-21 07:53:24,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 07:53:24,749 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 07:53:24,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 07:53:24,950 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 [2023-12-21 07:53:24,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 07:53:24,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 07:53:24,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1239920757, now seen corresponding path program 1 times [2023-12-21 07:53:24,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 07:53:24,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151098672] [2023-12-21 07:53:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 07:53:24,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 07:53:24,964 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 07:53:24,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643313817] [2023-12-21 07:53:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 07:53:24,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 07:53:24,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 07:53:24,966 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) [2023-12-21 07:53:24,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Received shutdown request... [2023-12-21 08:08:06,521 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 [2023-12-21 08:08:06,522 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 08:08:07,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-21 08:08:07,729 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2023-12-21 08:08:07,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2023-12-21 08:08:07,752 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-21 08:08:07,754 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 08:08:07,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 08:08:07,754 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 38 with TraceHistMax 4,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-21 08:08:07,758 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-21 08:08:07,760 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 08:08:07,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 08:08:07 BoogieIcfgContainer [2023-12-21 08:08:07,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 08:08:07,763 INFO L158 Benchmark]: Toolchain (without parser) took 893295.34ms. Allocated memory was 238.0MB in the beginning and 297.8MB in the end (delta: 59.8MB). Free memory was 173.2MB in the beginning and 250.6MB in the end (delta: -77.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 08:08:07,763 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 238.0MB. Free memory is still 187.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 08:08:07,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.30ms. Allocated memory is still 238.0MB. Free memory was 172.9MB in the beginning and 162.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-21 08:08:07,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.82ms. Allocated memory is still 238.0MB. Free memory was 162.0MB in the beginning and 160.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 08:08:07,764 INFO L158 Benchmark]: Boogie Preprocessor took 46.21ms. Allocated memory is still 238.0MB. Free memory was 160.4MB in the beginning and 158.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 08:08:07,765 INFO L158 Benchmark]: RCFGBuilder took 307.28ms. Allocated memory was 238.0MB in the beginning and 297.8MB in the end (delta: 59.8MB). Free memory was 158.5MB in the beginning and 256.9MB in the end (delta: -98.4MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2023-12-21 08:08:07,765 INFO L158 Benchmark]: TraceAbstraction took 892697.01ms. Allocated memory is still 297.8MB. Free memory was 256.4MB in the beginning and 250.6MB in the end (delta: 5.8MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. [2023-12-21 08:08:07,766 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 238.0MB. Free memory is still 187.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.30ms. Allocated memory is still 238.0MB. Free memory was 172.9MB in the beginning and 162.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.82ms. Allocated memory is still 238.0MB. Free memory was 162.0MB in the beginning and 160.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.21ms. Allocated memory is still 238.0MB. Free memory was 160.4MB in the beginning and 158.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 307.28ms. Allocated memory was 238.0MB in the beginning and 297.8MB in the end (delta: 59.8MB). Free memory was 158.5MB in the beginning and 256.9MB in the end (delta: -98.4MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * TraceAbstraction took 892697.01ms. Allocated memory is still 297.8MB. Free memory was 256.4MB in the beginning and 250.6MB in the end (delta: 5.8MB). Peak memory consumption was 5.8MB. 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: 14]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 14). Cancelled while NwaCegarLoop was analyzing trace of length 38 with TraceHistMax 4,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 892.6s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 48 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 205 SizeOfPredicates, 2 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 69/72 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