/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-9.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 11:47:24,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 11:47:24,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 11:47:24,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 11:47:24,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 11:47:24,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 11:47:24,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 11:47:24,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 11:47:24,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 11:47:24,219 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 11:47:24,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 11:47:24,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 11:47:24,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 11:47:24,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 11:47:24,221 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 11:47:24,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 11:47:24,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 11:47:24,221 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 11:47:24,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 11:47:24,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 11:47:24,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 11:47:24,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 11:47:24,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 11:47:24,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 11:47:24,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 11:47:24,231 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 11:47:24,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 11:47:24,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 11:47:24,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 11:47:24,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 11:47:24,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 11:47:24,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 11:47:24,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:47:24,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 11:47:24,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 11:47:24,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 11:47:24,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 11:47:24,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 11:47:24,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 11:47:24,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 11:47:24,234 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 11:47:24,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 11:47:24,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 11:47:24,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 11:47:24,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 11:47:24,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 11:47:24,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 11:47:24,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 11:47:24,452 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 11:47:24,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-9.i [2023-12-19 11:47:25,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 11:47:25,647 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 11:47:25,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-9.i [2023-12-19 11:47:25,652 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747deb096/084abc06a7e24219b7119b82d07d1bdf/FLAG4cff8b766 [2023-12-19 11:47:25,661 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747deb096/084abc06a7e24219b7119b82d07d1bdf [2023-12-19 11:47:25,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 11:47:25,663 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 11:47:25,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 11:47:25,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 11:47:25,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 11:47:25,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2ace6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25, skipping insertion in model container [2023-12-19 11:47:25,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,692 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 11:47:25,808 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-9.i[914,927] [2023-12-19 11:47:25,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:47:25,862 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 11:47:25,871 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-9.i[914,927] [2023-12-19 11:47:25,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:47:25,902 INFO L206 MainTranslator]: Completed translation [2023-12-19 11:47:25,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25 WrapperNode [2023-12-19 11:47:25,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 11:47:25,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 11:47:25,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 11:47:25,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 11:47:25,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,950 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2023-12-19 11:47:25,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 11:47:25,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 11:47:25,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 11:47:25,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 11:47:25,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,977 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]. [2023-12-19 11:47:25,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 11:47:25,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 11:47:25,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 11:47:25,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 11:47:25,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (1/1) ... [2023-12-19 11:47:25,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:47:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:26,015 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) [2023-12-19 11:47:26,053 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 [2023-12-19 11:47:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 11:47:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 11:47:26,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 11:47:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 11:47:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 11:47:26,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 11:47:26,112 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 11:47:26,115 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 11:47:26,303 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 11:47:26,333 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 11:47:26,333 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 11:47:26,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:47:26 BoogieIcfgContainer [2023-12-19 11:47:26,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 11:47:26,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 11:47:26,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 11:47:26,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 11:47:26,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:47:25" (1/3) ... [2023-12-19 11:47:26,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4fb180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:47:26, skipping insertion in model container [2023-12-19 11:47:26,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:25" (2/3) ... [2023-12-19 11:47:26,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4fb180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:47:26, skipping insertion in model container [2023-12-19 11:47:26,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:47:26" (3/3) ... [2023-12-19 11:47:26,339 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-9.i [2023-12-19 11:47:26,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 11:47:26,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 11:47:26,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 11:47:26,392 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;@48110937, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 11:47:26,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 11:47:26,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-19 11:47:26,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-19 11:47:26,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:26,402 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:26,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:26,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:26,406 INFO L85 PathProgramCache]: Analyzing trace with hash 180734455, now seen corresponding path program 1 times [2023-12-19 11:47:26,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:26,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962397062] [2023-12-19 11:47:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:26,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:26,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:26,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962397062] [2023-12-19 11:47:26,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 11:47:26,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295158429] [2023-12-19 11:47:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:26,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:26,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:26,535 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) [2023-12-19 11:47:26,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 11:47:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:26,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 11:47:26,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-19 11:47:26,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:47:26,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295158429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:47:26,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:47:26,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 11:47:26,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45021869] [2023-12-19 11:47:26,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:47:26,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 11:47:26,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:26,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 11:47:26,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:47:26,678 INFO L87 Difference]: Start difference. First operand has 33 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 11:47:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:26,705 INFO L93 Difference]: Finished difference Result 65 states and 100 transitions. [2023-12-19 11:47:26,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 11:47:26,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2023-12-19 11:47:26,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:26,712 INFO L225 Difference]: With dead ends: 65 [2023-12-19 11:47:26,712 INFO L226 Difference]: Without dead ends: 31 [2023-12-19 11:47:26,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:47:26,717 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:26,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:47:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-19 11:47:26,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-12-19 11:47:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-19 11:47:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2023-12-19 11:47:26,744 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 41 [2023-12-19 11:47:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:26,745 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2023-12-19 11:47:26,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 11:47:26,745 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2023-12-19 11:47:26,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-19 11:47:26,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:26,747 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:26,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 11:47:26,953 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 [2023-12-19 11:47:26,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:26,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash 319903353, now seen corresponding path program 1 times [2023-12-19 11:47:26,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:26,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458605950] [2023-12-19 11:47:26,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:26,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:26,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:26,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094790212] [2023-12-19 11:47:26,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:26,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:26,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:26,992 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) [2023-12-19 11:47:27,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 11:47:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:27,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 11:47:27,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-19 11:47:27,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:47:27,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:27,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458605950] [2023-12-19 11:47:27,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:47:27,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094790212] [2023-12-19 11:47:27,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094790212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:47:27,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:47:27,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 11:47:27,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316972335] [2023-12-19 11:47:27,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:47:27,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 11:47:27,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:27,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 11:47:27,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 11:47:27,164 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-19 11:47:27,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:27,231 INFO L93 Difference]: Finished difference Result 103 states and 142 transitions. [2023-12-19 11:47:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 11:47:27,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2023-12-19 11:47:27,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:27,232 INFO L225 Difference]: With dead ends: 103 [2023-12-19 11:47:27,232 INFO L226 Difference]: Without dead ends: 73 [2023-12-19 11:47:27,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:47:27,233 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 54 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:27,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 119 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:47:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-19 11:47:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 59. [2023-12-19 11:47:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-19 11:47:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2023-12-19 11:47:27,242 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 41 [2023-12-19 11:47:27,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:27,242 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2023-12-19 11:47:27,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-19 11:47:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2023-12-19 11:47:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-19 11:47:27,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:27,244 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:27,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 11:47:27,450 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 [2023-12-19 11:47:27,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:27,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:27,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1737271578, now seen corresponding path program 1 times [2023-12-19 11:47:27,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:27,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423360023] [2023-12-19 11:47:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:27,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:27,479 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:27,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274459322] [2023-12-19 11:47:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:27,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:27,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:27,481 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) [2023-12-19 11:47:27,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 11:47:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:27,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 11:47:27,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-19 11:47:27,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:47:27,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:27,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423360023] [2023-12-19 11:47:27,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:47:27,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274459322] [2023-12-19 11:47:27,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274459322] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:47:27,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:47:27,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 11:47:27,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495433421] [2023-12-19 11:47:27,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:47:27,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 11:47:27,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:27,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 11:47:27,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 11:47:27,563 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-19 11:47:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:27,593 INFO L93 Difference]: Finished difference Result 118 states and 166 transitions. [2023-12-19 11:47:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 11:47:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2023-12-19 11:47:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:27,594 INFO L225 Difference]: With dead ends: 118 [2023-12-19 11:47:27,594 INFO L226 Difference]: Without dead ends: 60 [2023-12-19 11:47:27,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:47:27,595 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:27,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 77 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:47:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-19 11:47:27,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2023-12-19 11:47:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-19 11:47:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-12-19 11:47:27,602 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 42 [2023-12-19 11:47:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:27,602 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-12-19 11:47:27,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-19 11:47:27,603 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2023-12-19 11:47:27,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-19 11:47:27,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:27,603 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:27,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 11:47:27,809 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 [2023-12-19 11:47:27,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:27,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:27,810 INFO L85 PathProgramCache]: Analyzing trace with hash 916531115, now seen corresponding path program 1 times [2023-12-19 11:47:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:27,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273369151] [2023-12-19 11:47:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:27,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:27,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:27,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171478921] [2023-12-19 11:47:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:27,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:27,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:27,842 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) [2023-12-19 11:47:27,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 11:47:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:27,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 11:47:27,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-19 11:47:27,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:47:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273369151] [2023-12-19 11:47:27,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:47:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171478921] [2023-12-19 11:47:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171478921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:47:27,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:47:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 11:47:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653841736] [2023-12-19 11:47:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:47:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 11:47:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 11:47:27,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:47:27,924 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-19 11:47:27,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:27,954 INFO L93 Difference]: Finished difference Result 134 states and 184 transitions. [2023-12-19 11:47:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 11:47:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 44 [2023-12-19 11:47:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:27,958 INFO L225 Difference]: With dead ends: 134 [2023-12-19 11:47:27,958 INFO L226 Difference]: Without dead ends: 76 [2023-12-19 11:47:27,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:47:27,960 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 38 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:27,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 73 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:47:27,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-19 11:47:27,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2023-12-19 11:47:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 46 states have internal predecessors, (57), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-19 11:47:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 77 transitions. [2023-12-19 11:47:27,968 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 77 transitions. Word has length 44 [2023-12-19 11:47:27,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:27,968 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 77 transitions. [2023-12-19 11:47:27,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-19 11:47:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2023-12-19 11:47:27,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-19 11:47:27,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:27,969 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:27,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 11:47:28,175 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 [2023-12-19 11:47:28,175 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:28,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:28,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1619442735, now seen corresponding path program 1 times [2023-12-19 11:47:28,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:28,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595836256] [2023-12-19 11:47:28,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:28,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:28,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:28,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880478899] [2023-12-19 11:47:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:28,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:28,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:28,207 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) [2023-12-19 11:47:28,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 11:47:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 11:47:28,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 11:47:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 11:47:28,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 11:47:28,336 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 11:47:28,337 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 11:47:28,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 11:47:28,545 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 [2023-12-19 11:47:28,548 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-19 11:47:28,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 11:47:28,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:47:28 BoogieIcfgContainer [2023-12-19 11:47:28,582 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 11:47:28,582 INFO L158 Benchmark]: Toolchain (without parser) took 2918.76ms. Allocated memory was 200.3MB in the beginning and 349.2MB in the end (delta: 148.9MB). Free memory was 152.1MB in the beginning and 229.0MB in the end (delta: -76.9MB). Peak memory consumption was 72.8MB. Max. memory is 8.0GB. [2023-12-19 11:47:28,582 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:47:28,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.87ms. Allocated memory is still 200.3MB. Free memory was 151.9MB in the beginning and 139.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 11:47:28,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.35ms. Allocated memory is still 200.3MB. Free memory was 139.6MB in the beginning and 137.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 11:47:28,583 INFO L158 Benchmark]: Boogie Preprocessor took 42.66ms. Allocated memory is still 200.3MB. Free memory was 137.2MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 11:47:28,583 INFO L158 Benchmark]: RCFGBuilder took 339.30ms. Allocated memory is still 200.3MB. Free memory was 134.1MB in the beginning and 117.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 11:47:28,583 INFO L158 Benchmark]: TraceAbstraction took 2246.48ms. Allocated memory was 200.3MB in the beginning and 349.2MB in the end (delta: 148.9MB). Free memory was 117.1MB in the beginning and 229.0MB in the end (delta: -111.9MB). Peak memory consumption was 37.2MB. Max. memory is 8.0GB. [2023-12-19 11:47:28,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 238.87ms. Allocated memory is still 200.3MB. Free memory was 151.9MB in the beginning and 139.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.35ms. Allocated memory is still 200.3MB. Free memory was 139.6MB in the beginning and 137.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.66ms. Allocated memory is still 200.3MB. Free memory was 137.2MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 339.30ms. Allocated memory is still 200.3MB. Free memory was 134.1MB in the beginning and 117.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 2246.48ms. Allocated memory was 200.3MB in the beginning and 349.2MB in the end (delta: 148.9MB). Free memory was 117.1MB in the beginning and 229.0MB in the end (delta: -111.9MB). Peak memory consumption was 37.2MB. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of shiftLeft at line 75. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L23] unsigned char var_1_3 = 4; [L24] unsigned char var_1_7 = 0; [L25] signed short int var_1_8 = 100; [L26] unsigned char var_1_9 = 32; [L27] double var_1_10 = 9.2; [L28] double var_1_11 = 0.975; [L29] signed short int var_1_12 = 1; [L30] signed short int last_1_var_1_8 = 100; [L31] double last_1_var_1_10 = 9.2; [L79] isInitial = 1 [L80] FCALL initially() [L81] int k_loop; [L82] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L82] COND TRUE k_loop < 1 [L83] CALL updateLastVariables() [L71] last_1_var_1_8 = var_1_8 [L72] last_1_var_1_10 = var_1_10 [L83] RET updateLastVariables() [L84] CALL updateVariables() [L61] var_1_3 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L62] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L63] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L63] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L64] var_1_7 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_8=100, var_1_9=32] [L65] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_8=100, var_1_9=32] [L66] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L66] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L67] var_1_11 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L68] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L84] RET updateVariables() [L85] CALL step() [L35] COND FALSE !(last_1_var_1_8 <= 16) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L38] COND FALSE !(((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) [L45] var_1_1 = var_1_3 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=32] [L48] var_1_9 = 64 [L49] var_1_10 = var_1_11 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=64] [L50] EXPR 10 << var_1_9 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=100, var_1_9=64] [L50] COND TRUE (10 << var_1_9) < (var_1_3 * var_1_1) [L51] var_1_8 = (var_1_9 + var_1_1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] [L53] unsigned char stepLocal_0 = var_1_10 > var_1_10; VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, stepLocal_0=1, var_1_10=2, var_1_11=2, var_1_12=1, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] [L54] COND TRUE ((var_1_1 + var_1_9) < 10) || stepLocal_0 [L55] var_1_12 = ((((var_1_8) > (var_1_1)) ? (var_1_8) : (var_1_1))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, stepLocal_0=1, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] [L85] RET step() [L86] CALL, EXPR property() [L75] EXPR ((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] [L75] EXPR 10 << var_1_9 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] [L75] EXPR ((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] [L75-L76] return (((((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1)) && (var_1_9 == ((unsigned char) 64))) && (var_1_10 == ((double) var_1_11))) && ((((var_1_1 + var_1_9) < 10) || (var_1_10 > var_1_10)) ? (var_1_12 == ((signed short int) ((((var_1_8) > (var_1_1)) ? (var_1_8) : (var_1_1))))) : (var_1_12 == ((signed short int) var_1_8))) ; [L86] RET, EXPR property() [L86] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=68, var_1_1=4, var_1_3=4, var_1_7=0, var_1_8=68, var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 309 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 170 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 4 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 SizeOfPredicates, 3 NumberOfNonLiveVariables, 535 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 160/160 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: unable to determine feasibility of some traces [2023-12-19 11:47:28,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...