/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-65.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 22:35:56,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 22:35:56,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 22:35:56,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 22:35:56,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 22:35:56,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 22:35:56,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 22:35:56,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 22:35:56,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 22:35:56,348 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 22:35:56,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 22:35:56,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 22:35:56,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 22:35:56,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 22:35:56,350 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 22:35:56,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 22:35:56,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 22:35:56,350 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 22:35:56,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 22:35:56,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 22:35:56,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 22:35:56,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 22:35:56,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 22:35:56,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 22:35:56,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 22:35:56,353 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 22:35:56,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 22:35:56,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 22:35:56,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 22:35:56,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 22:35:56,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 22:35:56,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 22:35:56,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:35:56,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 22:35:56,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 22:35:56,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 22:35:56,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 22:35:56,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 22:35:56,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 22:35:56,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 22:35:56,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 22:35:56,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 22:35:56,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 22:35:56,356 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 22:35:56,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 22:35:56,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 22:35:56,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 22:35:56,561 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 22:35:56,561 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 22:35:56,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-65.i [2023-12-20 22:35:57,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 22:35:57,675 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 22:35:57,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-65.i [2023-12-20 22:35:57,683 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70124e895/86547a0c5ea1474a94d739c8d5dcd39e/FLAG2e5aa4ab9 [2023-12-20 22:35:57,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70124e895/86547a0c5ea1474a94d739c8d5dcd39e [2023-12-20 22:35:57,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 22:35:57,698 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 22:35:57,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 22:35:57,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 22:35:57,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 22:35:57,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:57,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245c880f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57, skipping insertion in model container [2023-12-20 22:35:57,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:57,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 22:35:57,828 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_100-1loop_file-65.i[916,929] [2023-12-20 22:35:57,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:35:57,913 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 22:35:57,920 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_100-1loop_file-65.i[916,929] [2023-12-20 22:35:57,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:35:57,971 INFO L206 MainTranslator]: Completed translation [2023-12-20 22:35:57,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57 WrapperNode [2023-12-20 22:35:57,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 22:35:57,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 22:35:57,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 22:35:57,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 22:35:57,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:57,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,030 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 227 [2023-12-20 22:35:58,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 22:35:58,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 22:35:58,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 22:35:58,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 22:35:58,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,047 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,063 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 22:35:58,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 22:35:58,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 22:35:58,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 22:35:58,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 22:35:58,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (1/1) ... [2023-12-20 22:35:58,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:35:58,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:35:58,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 22:35:58,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 22:35:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 22:35:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 22:35:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 22:35:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 22:35:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 22:35:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 22:35:58,234 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 22:35:58,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 22:35:58,613 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 22:35:58,646 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 22:35:58,646 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 22:35:58,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:35:58 BoogieIcfgContainer [2023-12-20 22:35:58,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 22:35:58,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 22:35:58,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 22:35:58,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 22:35:58,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 10:35:57" (1/3) ... [2023-12-20 22:35:58,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20622ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:35:58, skipping insertion in model container [2023-12-20 22:35:58,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:35:57" (2/3) ... [2023-12-20 22:35:58,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20622ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:35:58, skipping insertion in model container [2023-12-20 22:35:58,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:35:58" (3/3) ... [2023-12-20 22:35:58,652 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-65.i [2023-12-20 22:35:58,664 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 22:35:58,664 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 22:35:58,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 22:35:58,711 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;@590217aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 22:35:58,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 22:35:58,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 57 states have (on average 1.456140350877193) internal successors, (83), 58 states have internal predecessors, (83), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-20 22:35:58,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-20 22:35:58,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:35:58,736 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:35:58,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:35:58,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:35:58,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1407397473, now seen corresponding path program 1 times [2023-12-20 22:35:58,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:35:58,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837017013] [2023-12-20 22:35:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:35:58,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:35:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:35:58,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:35:58,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837017013] [2023-12-20 22:35:58,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 22:35:58,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840206855] [2023-12-20 22:35:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:35:58,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:35:58,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:35:58,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:35:58,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 22:35:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:35:59,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 22:35:59,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:35:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2023-12-20 22:35:59,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:35:59,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840206855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:35:59,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:35:59,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 22:35:59,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382494796] [2023-12-20 22:35:59,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:35:59,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 22:35:59,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:35:59,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 22:35:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:35:59,241 INFO L87 Difference]: Start difference. First operand has 92 states, 57 states have (on average 1.456140350877193) internal successors, (83), 58 states have internal predecessors, (83), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-20 22:35:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:35:59,288 INFO L93 Difference]: Finished difference Result 183 states and 325 transitions. [2023-12-20 22:35:59,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 22:35:59,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 205 [2023-12-20 22:35:59,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:35:59,296 INFO L225 Difference]: With dead ends: 183 [2023-12-20 22:35:59,296 INFO L226 Difference]: Without dead ends: 90 [2023-12-20 22:35:59,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:35:59,301 INFO L413 NwaCegarLoop]: 139 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, 139 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 [2023-12-20 22:35:59,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:35:59,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-20 22:35:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-20 22:35:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 56 states have internal predecessors, (78), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-20 22:35:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 142 transitions. [2023-12-20 22:35:59,337 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 142 transitions. Word has length 205 [2023-12-20 22:35:59,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:35:59,337 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 142 transitions. [2023-12-20 22:35:59,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-20 22:35:59,338 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions. [2023-12-20 22:35:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-20 22:35:59,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:35:59,341 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:35:59,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 22:35:59,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-20 22:35:59,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:35:59,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:35:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1853599127, now seen corresponding path program 1 times [2023-12-20 22:35:59,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:35:59,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970486286] [2023-12-20 22:35:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:35:59,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:35:59,586 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:35:59,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478229757] [2023-12-20 22:35:59,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:35:59,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:35:59,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:35:59,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:35:59,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 22:35:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:35:59,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-20 22:35:59,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:36:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-12-20 22:36:00,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:36:00,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:36:00,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970486286] [2023-12-20 22:36:00,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:36:00,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478229757] [2023-12-20 22:36:00,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478229757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:36:00,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:36:00,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 22:36:00,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435264916] [2023-12-20 22:36:00,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:36:00,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 22:36:00,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:36:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 22:36:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 22:36:00,253 INFO L87 Difference]: Start difference. First operand 90 states and 142 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-20 22:36:00,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:36:00,390 INFO L93 Difference]: Finished difference Result 269 states and 425 transitions. [2023-12-20 22:36:00,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 22:36:00,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 205 [2023-12-20 22:36:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:36:00,393 INFO L225 Difference]: With dead ends: 269 [2023-12-20 22:36:00,393 INFO L226 Difference]: Without dead ends: 180 [2023-12-20 22:36:00,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 22:36:00,394 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 76 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 22:36:00,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 389 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 22:36:00,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-20 22:36:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 151. [2023-12-20 22:36:00,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 84 states have internal predecessors, (107), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-20 22:36:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 235 transitions. [2023-12-20 22:36:00,414 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 235 transitions. Word has length 205 [2023-12-20 22:36:00,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:36:00,415 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 235 transitions. [2023-12-20 22:36:00,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-20 22:36:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 235 transitions. [2023-12-20 22:36:00,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-20 22:36:00,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:36:00,417 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:36:00,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 22:36:00,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-20 22:36:00,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:36:00,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:36:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2121414065, now seen corresponding path program 1 times [2023-12-20 22:36:00,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:36:00,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918772469] [2023-12-20 22:36:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:36:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:36:00,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:36:00,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472081887] [2023-12-20 22:36:00,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:36:00,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:36:00,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:36:00,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:36:00,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 22:36:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:36:00,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 22:36:00,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:36:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1120 proven. 102 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2023-12-20 22:36:01,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 22:36:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 78 proven. 105 refuted. 0 times theorem prover too weak. 1801 trivial. 0 not checked. [2023-12-20 22:36:01,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:36:01,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918772469] [2023-12-20 22:36:01,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:36:01,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472081887] [2023-12-20 22:36:01,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472081887] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 22:36:01,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 22:36:01,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-20 22:36:01,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887690565] [2023-12-20 22:36:01,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 22:36:01,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 22:36:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:36:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 22:36:01,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-12-20 22:36:01,458 INFO L87 Difference]: Start difference. First operand 151 states and 235 transitions. Second operand has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 3 states have call successors, (51), 3 states have call predecessors, (51), 7 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2023-12-20 22:36:02,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:36:02,325 INFO L93 Difference]: Finished difference Result 367 states and 549 transitions. [2023-12-20 22:36:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-20 22:36:02,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 3 states have call successors, (51), 3 states have call predecessors, (51), 7 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 206 [2023-12-20 22:36:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:36:02,332 INFO L225 Difference]: With dead ends: 367 [2023-12-20 22:36:02,332 INFO L226 Difference]: Without dead ends: 278 [2023-12-20 22:36:02,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 400 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=542, Invalid=1438, Unknown=0, NotChecked=0, Total=1980 [2023-12-20 22:36:02,337 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 649 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 22:36:02,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 518 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 22:36:02,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-12-20 22:36:02,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 167. [2023-12-20 22:36:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 96 states have (on average 1.21875) internal successors, (117), 96 states have internal predecessors, (117), 64 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-20 22:36:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 245 transitions. [2023-12-20 22:36:02,379 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 245 transitions. Word has length 206 [2023-12-20 22:36:02,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:36:02,379 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 245 transitions. [2023-12-20 22:36:02,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 3 states have call successors, (51), 3 states have call predecessors, (51), 7 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2023-12-20 22:36:02,379 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 245 transitions. [2023-12-20 22:36:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-20 22:36:02,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:36:02,381 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:36:02,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 22:36:02,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:36:02,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:36:02,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:36:02,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1793586053, now seen corresponding path program 1 times [2023-12-20 22:36:02,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:36:02,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984682774] [2023-12-20 22:36:02,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:36:02,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:36:02,618 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:36:02,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566739326] [2023-12-20 22:36:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:36:02,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:36:02,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:36:02,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:36:02,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 22:36:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:36:02,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 74 conjunts are in the unsatisfiable core [2023-12-20 22:36:02,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:36:27,134 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:36:40,114 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:38:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1036 proven. 423 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2023-12-20 22:38:37,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 22:40:22,460 WARN L293 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 188 DAG size of output: 187 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:40:47,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:40:47,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984682774] [2023-12-20 22:40:47,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:40:47,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566739326] [2023-12-20 22:40:47,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566739326] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 22:40:47,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-20 22:40:47,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2023-12-20 22:40:47,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449954618] [2023-12-20 22:40:47,220 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-20 22:40:47,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-20 22:40:47,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:40:47,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-20 22:40:47,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=1946, Unknown=4, NotChecked=0, Total=2352 [2023-12-20 22:40:47,222 INFO L87 Difference]: Start difference. First operand 167 states and 245 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 32 states have internal predecessors, (74), 7 states have call successors, (32), 7 states have call predecessors, (32), 9 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-12-20 22:41:30,017 WARN L293 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 84 DAG size of output: 81 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:41:41,084 WARN L293 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 86 DAG size of output: 83 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:41:58,644 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 115 DAG size of output: 98 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:42:30,504 WARN L293 SmtUtils]: Spent 14.22s on a formula simplification. DAG size of input: 118 DAG size of output: 102 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:42:55,924 WARN L293 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 99 DAG size of output: 89 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 22:43:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:43:06,100 INFO L93 Difference]: Finished difference Result 364 states and 495 transitions. [2023-12-20 22:43:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-20 22:43:06,101 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 32 states have internal predecessors, (74), 7 states have call successors, (32), 7 states have call predecessors, (32), 9 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 207 [2023-12-20 22:43:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:43:06,103 INFO L225 Difference]: With dead ends: 364 [2023-12-20 22:43:06,103 INFO L226 Difference]: Without dead ends: 362 [2023-12-20 22:43:06,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2129 ImplicationChecksByTransitivity, 221.9s TimeCoverageRelationStatistics Valid=1410, Invalid=6776, Unknown=4, NotChecked=0, Total=8190 [2023-12-20 22:43:06,106 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 573 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2023-12-20 22:43:06,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1040 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 30.6s Time] [2023-12-20 22:43:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-20 22:43:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 217. [2023-12-20 22:43:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 140 states have (on average 1.2357142857142858) internal successors, (173), 140 states have internal predecessors, (173), 64 states have call successors, (64), 12 states have call predecessors, (64), 12 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-20 22:43:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 301 transitions. [2023-12-20 22:43:06,136 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 301 transitions. Word has length 207 [2023-12-20 22:43:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:43:06,136 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 301 transitions. [2023-12-20 22:43:06,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 32 states have internal predecessors, (74), 7 states have call successors, (32), 7 states have call predecessors, (32), 9 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-12-20 22:43:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 301 transitions. [2023-12-20 22:43:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-20 22:43:06,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:43:06,138 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:43:06,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 22:43:06,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:43:06,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:43:06,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:43:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1793645635, now seen corresponding path program 1 times [2023-12-20 22:43:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:43:06,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236248748] [2023-12-20 22:43:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:43:06,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:43:06,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:43:06,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168314452] [2023-12-20 22:43:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:43:06,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:43:06,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:43:06,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:43:06,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 22:43:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-20 22:43:06,631 WARN L124 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2023-12-20 22:43:06,631 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-12-20 22:43:06,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 22:43:06,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 22:43:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:43:06,840 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-20 22:43:06,842 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 22:43:06,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 10:43:06 BoogieIcfgContainer [2023-12-20 22:43:06,861 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 22:43:06,861 INFO L158 Benchmark]: Toolchain (without parser) took 429162.58ms. Allocated memory was 194.0MB in the beginning and 725.6MB in the end (delta: 531.6MB). Free memory was 145.5MB in the beginning and 408.3MB in the end (delta: -262.9MB). Peak memory consumption was 269.2MB. Max. memory is 8.0GB. [2023-12-20 22:43:06,861 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 194.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 22:43:06,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.97ms. Allocated memory is still 194.0MB. Free memory was 145.5MB in the beginning and 127.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-20 22:43:06,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.03ms. Allocated memory is still 194.0MB. Free memory was 127.6MB in the beginning and 120.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-20 22:43:06,862 INFO L158 Benchmark]: Boogie Preprocessor took 64.80ms. Allocated memory is still 194.0MB. Free memory was 120.8MB in the beginning and 107.7MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-20 22:43:06,862 INFO L158 Benchmark]: RCFGBuilder took 550.38ms. Allocated memory was 194.0MB in the beginning and 309.3MB in the end (delta: 115.3MB). Free memory was 107.7MB in the beginning and 270.1MB in the end (delta: -162.4MB). Peak memory consumption was 36.8MB. Max. memory is 8.0GB. [2023-12-20 22:43:06,862 INFO L158 Benchmark]: TraceAbstraction took 428212.31ms. Allocated memory was 309.3MB in the beginning and 725.6MB in the end (delta: 416.3MB). Free memory was 269.6MB in the beginning and 408.3MB in the end (delta: -138.7MB). Peak memory consumption was 277.5MB. Max. memory is 8.0GB. [2023-12-20 22:43:06,863 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 194.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 272.97ms. Allocated memory is still 194.0MB. Free memory was 145.5MB in the beginning and 127.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.03ms. Allocated memory is still 194.0MB. Free memory was 127.6MB in the beginning and 120.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.80ms. Allocated memory is still 194.0MB. Free memory was 120.8MB in the beginning and 107.7MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * RCFGBuilder took 550.38ms. Allocated memory was 194.0MB in the beginning and 309.3MB in the end (delta: 115.3MB). Free memory was 107.7MB in the beginning and 270.1MB in the end (delta: -162.4MB). Peak memory consumption was 36.8MB. Max. memory is 8.0GB. * TraceAbstraction took 428212.31ms. Allocated memory was 309.3MB in the beginning and 725.6MB in the end (delta: 416.3MB). Free memory was 269.6MB in the beginning and 408.3MB in the end (delta: -138.7MB). Peak memory consumption was 277.5MB. 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: unable to decide satisfiability of path constraint, overapproximation of someBinaryFLOATComparisonOperation at line 198, overapproximation of someBinaryDOUBLEComparisonOperation at line 198, overapproximation of bitwise operation at line 117. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 10; [L23] unsigned char var_1_5 = 100; [L24] unsigned char var_1_6 = 32; [L25] unsigned char var_1_7 = 128; [L26] unsigned char var_1_8 = 5; [L27] signed short int var_1_9 = 8; [L28] signed long int var_1_10 = -1; [L29] float var_1_12 = 10.375; [L30] float var_1_13 = 7.5; [L31] float var_1_14 = 128.125; [L32] float var_1_15 = 999999.7; [L33] signed long int var_1_16 = 8; [L34] unsigned char var_1_17 = 1; [L35] unsigned char var_1_18 = 1; [L36] unsigned char var_1_19 = 0; [L37] unsigned long int var_1_20 = 16; [L38] unsigned short int var_1_21 = 5; [L39] unsigned short int var_1_23 = 61585; [L40] signed short int var_1_24 = -10000; [L41] unsigned short int var_1_25 = 16936; [L42] unsigned char var_1_27 = 1; [L43] unsigned char var_1_28 = 0; [L44] unsigned char var_1_29 = 1; [L45] unsigned char var_1_30 = 8; [L46] signed long int var_1_31 = 25; [L47] unsigned long int var_1_32 = 4; [L48] signed long int var_1_33 = 1617629083; [L49] signed long int var_1_34 = 1000000000; [L50] signed long int var_1_35 = 1000000000; [L51] unsigned char var_1_36 = 10; [L52] signed short int var_1_37 = 256; [L53] unsigned char last_1_var_1_17 = 1; [L54] unsigned short int last_1_var_1_21 = 5; [L55] unsigned char last_1_var_1_27 = 1; [L56] unsigned char last_1_var_1_29 = 1; [L57] unsigned char last_1_var_1_36 = 10; [L202] isInitial = 1 [L203] FCALL initially() [L204] int k_loop; [L205] k_loop = 0 [L205] COND TRUE k_loop < 1 [L206] CALL updateLastVariables() [L191] last_1_var_1_17 = var_1_17 [L192] last_1_var_1_21 = var_1_21 [L193] last_1_var_1_27 = var_1_27 [L194] last_1_var_1_29 = var_1_29 [L195] last_1_var_1_36 = var_1_36 [L206] RET updateLastVariables() [L207] CALL updateVariables() [L140] var_1_6 = __VERIFIER_nondet_uchar() [L141] CALL assume_abort_if_not(var_1_6 >= 0) [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_6 >= 0) [L142] CALL assume_abort_if_not(var_1_6 <= 254) [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_6 <= 254) [L143] var_1_7 = __VERIFIER_nondet_uchar() [L144] CALL assume_abort_if_not(var_1_7 >= 127) [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_7 >= 127) [L145] CALL assume_abort_if_not(var_1_7 <= 254) [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_7 <= 254) [L146] var_1_8 = __VERIFIER_nondet_uchar() [L147] CALL assume_abort_if_not(var_1_8 >= 0) [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_8 >= 0) [L148] CALL assume_abort_if_not(var_1_8 <= 127) [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_8 <= 127) [L149] var_1_10 = __VERIFIER_nondet_long() [L150] CALL assume_abort_if_not(var_1_10 >= -2147483648) [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_10 >= -2147483648) [L151] CALL assume_abort_if_not(var_1_10 <= 2147483647) [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_10 <= 2147483647) [L152] CALL assume_abort_if_not(var_1_10 != 0) [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_10 != 0) [L153] var_1_13 = __VERIFIER_nondet_float() [L154] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) [L155] var_1_14 = __VERIFIER_nondet_float() [L156] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) [L157] var_1_15 = __VERIFIER_nondet_float() [L158] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) [L159] var_1_18 = __VERIFIER_nondet_uchar() [L160] CALL assume_abort_if_not(var_1_18 >= 1) [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_18 >= 1) [L161] CALL assume_abort_if_not(var_1_18 <= 1) [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_18 <= 1) [L162] var_1_19 = __VERIFIER_nondet_uchar() [L163] CALL assume_abort_if_not(var_1_19 >= 0) [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_19 >= 0) [L164] CALL assume_abort_if_not(var_1_19 <= 0) [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_19 <= 0) [L165] var_1_23 = __VERIFIER_nondet_ushort() [L166] CALL assume_abort_if_not(var_1_23 >= 49151) [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_23 >= 49151) [L167] CALL assume_abort_if_not(var_1_23 <= 65535) [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_23 <= 65535) [L168] var_1_25 = __VERIFIER_nondet_ushort() [L169] CALL assume_abort_if_not(var_1_25 >= 16383) [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_25 >= 16383) [L170] CALL assume_abort_if_not(var_1_25 <= 32767) [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_25 <= 32767) [L171] var_1_28 = __VERIFIER_nondet_uchar() [L172] CALL assume_abort_if_not(var_1_28 >= 0) [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not(var_1_28 >= 0) [L173] CALL assume_abort_if_not(var_1_28 <= 0) [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_28 <= 0) [L174] var_1_30 = __VERIFIER_nondet_uchar() [L175] CALL assume_abort_if_not(var_1_30 >= 0) [L20] COND FALSE !(!cond) [L175] RET assume_abort_if_not(var_1_30 >= 0) [L176] CALL assume_abort_if_not(var_1_30 <= 254) [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not(var_1_30 <= 254) [L177] var_1_32 = __VERIFIER_nondet_ulong() [L178] CALL assume_abort_if_not(var_1_32 >= 0) [L20] COND FALSE !(!cond) [L178] RET assume_abort_if_not(var_1_32 >= 0) [L179] CALL assume_abort_if_not(var_1_32 <= 16) [L20] COND FALSE !(!cond) [L179] RET assume_abort_if_not(var_1_32 <= 16) [L180] var_1_33 = __VERIFIER_nondet_long() [L181] CALL assume_abort_if_not(var_1_33 >= 1073741822) [L20] COND FALSE !(!cond) [L181] RET assume_abort_if_not(var_1_33 >= 1073741822) [L182] CALL assume_abort_if_not(var_1_33 <= 2147483646) [L20] COND FALSE !(!cond) [L182] RET assume_abort_if_not(var_1_33 <= 2147483646) [L183] var_1_34 = __VERIFIER_nondet_long() [L184] CALL assume_abort_if_not(var_1_34 >= 536870911) [L20] COND FALSE !(!cond) [L184] RET assume_abort_if_not(var_1_34 >= 536870911) [L185] CALL assume_abort_if_not(var_1_34 <= 1073741823) [L20] COND FALSE !(!cond) [L185] RET assume_abort_if_not(var_1_34 <= 1073741823) [L186] var_1_35 = __VERIFIER_nondet_long() [L187] CALL assume_abort_if_not(var_1_35 >= 536870912) [L20] COND FALSE !(!cond) [L187] RET assume_abort_if_not(var_1_35 >= 536870912) [L188] CALL assume_abort_if_not(var_1_35 <= 1073741823) [L20] COND FALSE !(!cond) [L188] RET assume_abort_if_not(var_1_35 <= 1073741823) [L207] RET updateVariables() [L208] CALL step() [L61] COND TRUE \read(last_1_var_1_17) [L62] COND TRUE \read(last_1_var_1_17) [L63] var_1_1 = (16 - 2) [L68] var_1_20 = ((((var_1_1) < (64u)) ? (var_1_1) : (64u))) [L69] signed long int stepLocal_1 = last_1_var_1_36; [L70] COND TRUE stepLocal_1 == (((((last_1_var_1_21) > (var_1_6)) ? (last_1_var_1_21) : (var_1_6))) / var_1_10) [L71] var_1_17 = (! (var_1_18 && (! var_1_19))) [L77] COND TRUE \read(last_1_var_1_27) [L78] var_1_5 = ((((var_1_6) < ((var_1_7 - var_1_8))) ? (var_1_6) : ((var_1_7 - var_1_8)))) [L80] COND TRUE \read(last_1_var_1_27) [L81] var_1_12 = ((((var_1_13) > (var_1_14)) ? (var_1_13) : (var_1_14))) [L85] signed long int stepLocal_6 = var_1_6 / var_1_23; [L86] COND TRUE var_1_10 >= stepLocal_6 [L87] var_1_36 = ((((var_1_30) < (var_1_6)) ? (var_1_30) : (var_1_6))) [L91] unsigned long int stepLocal_0 = var_1_20; [L92] COND TRUE var_1_12 > (- (var_1_13 + var_1_12)) [L93] var_1_16 = var_1_7 [L101] COND FALSE !(var_1_5 <= ((var_1_7 + var_1_8) / var_1_10)) [L108] COND TRUE (var_1_13 * ((((var_1_12) < (25.5)) ? (var_1_12) : (25.5)))) >= (var_1_14 + var_1_12) [L109] var_1_37 = ((((var_1_5) < (var_1_36)) ? (var_1_5) : (var_1_36))) [L113] unsigned char stepLocal_5 = var_1_36; [L114] COND TRUE ((((var_1_20) < (var_1_9)) ? (var_1_20) : (var_1_9))) >= stepLocal_5 [L115] var_1_29 = var_1_30 [L117] EXPR var_1_16 >> var_1_32 [L117] COND TRUE (var_1_1 * (var_1_36 + var_1_23)) >= (var_1_16 >> var_1_32) [L118] var_1_31 = ((((((var_1_33 - var_1_8)) < (var_1_1)) ? ((var_1_33 - var_1_8)) : (var_1_1))) - ((var_1_34 + var_1_35) - var_1_7)) [L120] unsigned char stepLocal_4 = var_1_5; [L121] COND TRUE ! var_1_17 [L122] COND FALSE !(var_1_31 >= stepLocal_4) [L126] signed long int stepLocal_2 = var_1_31; [L127] COND FALSE !(var_1_13 == var_1_12) [L132] signed long int stepLocal_3 = var_1_23 - (var_1_25 - var_1_7); [L133] COND FALSE !(stepLocal_3 <= (~ var_1_1)) [L208] RET step() [L209] CALL, EXPR property() [L198] EXPR (((((((((((last_1_var_1_17 ? (last_1_var_1_17 ? (var_1_1 == ((signed long int) (16 - 2))) : (var_1_1 == ((signed long int) last_1_var_1_29))) : 1) && (last_1_var_1_27 ? (var_1_5 == ((unsigned char) ((((var_1_6) < ((var_1_7 - var_1_8))) ? (var_1_6) : ((var_1_7 - var_1_8)))))) : 1)) && ((var_1_5 <= ((var_1_7 + var_1_8) / var_1_10)) ? ((7.5 >= var_1_12) ? (var_1_9 == ((signed short int) var_1_7)) : (var_1_9 == ((signed short int) var_1_8))) : 1)) && (last_1_var_1_27 ? (var_1_12 == ((float) ((((var_1_13) > (var_1_14)) ? (var_1_13) : (var_1_14))))) : (var_1_12 == ((float) ((((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) > (var_1_15)) ? (((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) : (var_1_15))))))) && ((var_1_12 > (- (var_1_13 + var_1_12))) ? (var_1_16 == ((signed long int) var_1_7)) : ((var_1_20 <= var_1_7) ? (var_1_16 == ((signed long int) var_1_20)) : (var_1_16 == ((signed long int) var_1_6))))) && ((last_1_var_1_36 == (((((last_1_var_1_21) > (var_1_6)) ? (last_1_var_1_21) : (var_1_6))) / var_1_10)) ? (var_1_17 == ((unsigned char) (! (var_1_18 && (! var_1_19))))) : (last_1_var_1_27 ? (var_1_17 == ((unsigned char) var_1_19)) : 1))) && (var_1_20 == ((unsigned long int) ((((var_1_1) < (64u)) ? (var_1_1) : (64u)))))) && ((var_1_13 == var_1_12) ? ((var_1_31 <= ((var_1_23 - var_1_6) - var_1_37)) ? (var_1_21 == ((unsigned short int) var_1_8)) : 1) : 1)) && (((var_1_23 - (var_1_25 - var_1_7)) <= (~ var_1_1)) ? (var_1_18 ? (var_1_24 == ((signed short int) (((((var_1_21 - (var_1_8 + var_1_29))) < (var_1_23)) ? ((var_1_21 - (var_1_8 + var_1_29))) : (var_1_23))))) : 1) : 1)) && ((! var_1_17) ? ((var_1_31 >= var_1_5) ? (var_1_27 == ((unsigned char) (var_1_19 || ((var_1_29 <= var_1_10) && var_1_28)))) : 1) : 1)) && ((((((var_1_20) < (var_1_9)) ? (var_1_20) : (var_1_9))) >= var_1_36) ? (var_1_29 == ((unsigned char) var_1_30)) : 1)) && (((var_1_1 * (var_1_36 + var_1_23)) >= (var_1_16 >> var_1_32)) ? (var_1_31 == ((signed long int) ((((((var_1_33 - var_1_8)) < (var_1_1)) ? ((var_1_33 - var_1_8)) : (var_1_1))) - ((var_1_34 + var_1_35) - var_1_7)))) : 1) [L198-L199] return (((((((((((((last_1_var_1_17 ? (last_1_var_1_17 ? (var_1_1 == ((signed long int) (16 - 2))) : (var_1_1 == ((signed long int) last_1_var_1_29))) : 1) && (last_1_var_1_27 ? (var_1_5 == ((unsigned char) ((((var_1_6) < ((var_1_7 - var_1_8))) ? (var_1_6) : ((var_1_7 - var_1_8)))))) : 1)) && ((var_1_5 <= ((var_1_7 + var_1_8) / var_1_10)) ? ((7.5 >= var_1_12) ? (var_1_9 == ((signed short int) var_1_7)) : (var_1_9 == ((signed short int) var_1_8))) : 1)) && (last_1_var_1_27 ? (var_1_12 == ((float) ((((var_1_13) > (var_1_14)) ? (var_1_13) : (var_1_14))))) : (var_1_12 == ((float) ((((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) > (var_1_15)) ? (((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) : (var_1_15))))))) && ((var_1_12 > (- (var_1_13 + var_1_12))) ? (var_1_16 == ((signed long int) var_1_7)) : ((var_1_20 <= var_1_7) ? (var_1_16 == ((signed long int) var_1_20)) : (var_1_16 == ((signed long int) var_1_6))))) && ((last_1_var_1_36 == (((((last_1_var_1_21) > (var_1_6)) ? (last_1_var_1_21) : (var_1_6))) / var_1_10)) ? (var_1_17 == ((unsigned char) (! (var_1_18 && (! var_1_19))))) : (last_1_var_1_27 ? (var_1_17 == ((unsigned char) var_1_19)) : 1))) && (var_1_20 == ((unsigned long int) ((((var_1_1) < (64u)) ? (var_1_1) : (64u)))))) && ((var_1_13 == var_1_12) ? ((var_1_31 <= ((var_1_23 - var_1_6) - var_1_37)) ? (var_1_21 == ((unsigned short int) var_1_8)) : 1) : 1)) && (((var_1_23 - (var_1_25 - var_1_7)) <= (~ var_1_1)) ? (var_1_18 ? (var_1_24 == ((signed short int) (((((var_1_21 - (var_1_8 + var_1_29))) < (var_1_23)) ? ((var_1_21 - (var_1_8 + var_1_29))) : (var_1_23))))) : 1) : 1)) && ((! var_1_17) ? ((var_1_31 >= var_1_5) ? (var_1_27 == ((unsigned char) (var_1_19 || ((var_1_29 <= var_1_10) && var_1_28)))) : 1) : 1)) && ((((((var_1_20) < (var_1_9)) ? (var_1_20) : (var_1_9))) >= var_1_36) ? (var_1_29 == ((unsigned char) var_1_30)) : 1)) && (((var_1_1 * (var_1_36 + var_1_23)) >= (var_1_16 >> var_1_32)) ? (var_1_31 == ((signed long int) ((((((var_1_33 - var_1_8)) < (var_1_1)) ? ((var_1_33 - var_1_8)) : (var_1_1))) - ((var_1_34 + var_1_35) - var_1_7)))) : 1)) && ((var_1_10 >= (var_1_6 / var_1_23)) ? (var_1_36 == ((unsigned char) ((((var_1_30) < (var_1_6)) ? (var_1_30) : (var_1_6))))) : (var_1_36 == ((unsigned char) (((((var_1_7 - var_1_32)) < (((((var_1_30) > (var_1_6)) ? (var_1_30) : (var_1_6))))) ? ((var_1_7 - var_1_32)) : (((((var_1_30) > (var_1_6)) ? (var_1_30) : (var_1_6)))))))))) && (((var_1_13 * ((((var_1_12) < (25.5)) ? (var_1_12) : (25.5)))) >= (var_1_14 + var_1_12)) ? (var_1_37 == ((signed short int) ((((var_1_5) < (var_1_36)) ? (var_1_5) : (var_1_36))))) : (var_1_37 == ((signed short int) var_1_36))) ; [L209] RET, EXPR property() [L209] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 428.1s, OverallIterations: 5, TraceHistogramMax: 32, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 140.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1311 SdHoareTripleChecker+Valid, 31.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1298 mSDsluCounter, 2086 SdHoareTripleChecker+Invalid, 30.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1588 mSDsCounter, 447 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2214 IncrementalHoareTripleChecker+Invalid, 2661 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 447 mSolverCounterUnsat, 498 mSDtfsCounter, 2214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1132 GetRequests, 995 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2662 ImplicationChecksByTransitivity, 222.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=4, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 285 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 285.6s InterpolantComputationTime, 1235 NumberOfCodeBlocks, 1235 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1024 ConstructedInterpolants, 1 QuantifiedInterpolants, 13074 SizeOfPredicates, 52 NumberOfNonLiveVariables, 1942 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 9290/9920 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 [2023-12-20 22:43:07,076 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-20 22:43:07,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...