/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-41.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 22:56:07,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 22:56:07,933 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 22:56:07,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 22:56:07,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 22:56:07,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 22:56:07,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 22:56:07,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 22:56:07,960 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 22:56:07,963 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 22:56:07,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 22:56:07,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 22:56:07,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 22:56:07,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 22:56:07,965 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 22:56:07,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 22:56:07,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 22:56:07,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 22:56:07,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 22:56:07,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 22:56:07,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 22:56:07,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 22:56:07,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 22:56:07,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 22:56:07,968 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 22:56:07,968 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 22:56:07,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 22:56:07,968 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 22:56:07,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 22:56:07,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 22:56:07,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 22:56:07,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 22:56:07,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:56:07,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 22:56:07,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 22:56:07,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 22:56:07,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 22:56:07,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 22:56:07,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 22:56:07,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 22:56:07,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 22:56:07,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 22:56:07,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 22:56:07,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 22:56:08,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 22:56:08,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 22:56:08,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 22:56:08,181 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 22:56:08,182 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 22:56:08,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-41.i [2023-12-20 22:56:09,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 22:56:09,362 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 22:56:09,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-41.i [2023-12-20 22:56:09,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7752a5b31/0cc4c7563d5a4593b5f07d68d131b791/FLAGa42256e9d [2023-12-20 22:56:09,764 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7752a5b31/0cc4c7563d5a4593b5f07d68d131b791 [2023-12-20 22:56:09,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 22:56:09,767 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 22:56:09,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 22:56:09,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 22:56:09,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 22:56:09,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f203ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09, skipping insertion in model container [2023-12-20 22:56:09,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,800 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 22:56:09,890 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-41.i[915,928] [2023-12-20 22:56:09,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:56:09,921 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 22:56:09,929 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-41.i[915,928] [2023-12-20 22:56:09,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:56:09,950 INFO L206 MainTranslator]: Completed translation [2023-12-20 22:56:09,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09 WrapperNode [2023-12-20 22:56:09,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 22:56:09,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 22:56:09,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 22:56:09,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 22:56:09,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,976 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2023-12-20 22:56:09,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 22:56:09,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 22:56:09,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 22:56:09,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 22:56:09,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,994 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 22:56:09,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:09,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:10,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:10,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:10,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:10,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:10,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 22:56:10,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 22:56:10,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 22:56:10,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 22:56:10,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (1/1) ... [2023-12-20 22:56:10,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:56:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:56:10,061 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 22:56:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 22:56:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 22:56:10,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 22:56:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 22:56:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 22:56:10,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 22:56:10,080 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 22:56:10,181 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 22:56:10,183 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 22:56:10,332 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 22:56:10,377 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 22:56:10,377 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 22:56:10,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:56:10 BoogieIcfgContainer [2023-12-20 22:56:10,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 22:56:10,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 22:56:10,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 22:56:10,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 22:56:10,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 10:56:09" (1/3) ... [2023-12-20 22:56:10,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdca17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:56:10, skipping insertion in model container [2023-12-20 22:56:10,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:56:09" (2/3) ... [2023-12-20 22:56:10,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdca17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:56:10, skipping insertion in model container [2023-12-20 22:56:10,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:56:10" (3/3) ... [2023-12-20 22:56:10,383 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-41.i [2023-12-20 22:56:10,396 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 22:56:10,397 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 22:56:10,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 22:56:10,430 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;@41642721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 22:56:10,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 22:56:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-20 22:56:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 22:56:10,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:56:10,442 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:10,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:56:10,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:56:10,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2117070649, now seen corresponding path program 1 times [2023-12-20 22:56:10,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:56:10,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523446354] [2023-12-20 22:56:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:56:10,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:56:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:56:10,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:56:10,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523446354] [2023-12-20 22:56:10,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 22:56:10,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135972934] [2023-12-20 22:56:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:56:10,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:56:10,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:56:10,580 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 22:56:10,587 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 22:56:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:56:10,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 22:56:10,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:56:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-20 22:56:10,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:56:10,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135972934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:56:10,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:56:10,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 22:56:10,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176752375] [2023-12-20 22:56:10,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:56:10,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 22:56:10,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:56:10,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 22:56:10,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:56:10,763 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 22:56:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:56:10,802 INFO L93 Difference]: Finished difference Result 88 states and 151 transitions. [2023-12-20 22:56:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 22:56:10,803 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2023-12-20 22:56:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:56:10,808 INFO L225 Difference]: With dead ends: 88 [2023-12-20 22:56:10,808 INFO L226 Difference]: Without dead ends: 42 [2023-12-20 22:56:10,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 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 22:56:10,813 INFO L413 NwaCegarLoop]: 58 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, 58 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 22:56:10,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:56:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-20 22:56:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-20 22:56:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-20 22:56:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 61 transitions. [2023-12-20 22:56:10,840 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 61 transitions. Word has length 99 [2023-12-20 22:56:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:56:10,840 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 61 transitions. [2023-12-20 22:56:10,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 22:56:10,840 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2023-12-20 22:56:10,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 22:56:10,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:56:10,843 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:10,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 22:56:11,050 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 22:56:11,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:56:11,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:56:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1105653959, now seen corresponding path program 1 times [2023-12-20 22:56:11,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:56:11,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920581000] [2023-12-20 22:56:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:56:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:56:11,083 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:56:11,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023711371] [2023-12-20 22:56:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:56:11,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:56:11,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:56:11,092 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 22:56:11,126 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 22:56:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:56:11,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-20 22:56:11,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:56:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 226 proven. 66 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2023-12-20 22:56:16,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 22:56:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-20 22:56:34,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:56:34,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920581000] [2023-12-20 22:56:34,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:56:34,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023711371] [2023-12-20 22:56:34,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023711371] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 22:56:34,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 22:56:34,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2023-12-20 22:56:34,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351194058] [2023-12-20 22:56:34,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 22:56:34,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 22:56:34,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:56:34,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 22:56:34,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-12-20 22:56:34,444 INFO L87 Difference]: Start difference. First operand 42 states and 61 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-20 22:56:39,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-20 22:56:41,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-20 22:56:42,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-20 22:56:42,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:56:42,953 INFO L93 Difference]: Finished difference Result 159 states and 215 transitions. [2023-12-20 22:56:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-20 22:56:42,954 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 99 [2023-12-20 22:56:42,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:56:42,956 INFO L225 Difference]: With dead ends: 159 [2023-12-20 22:56:42,956 INFO L226 Difference]: Without dead ends: 118 [2023-12-20 22:56:42,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 22:56:42,958 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 138 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-20 22:56:42,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 206 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 537 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2023-12-20 22:56:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-20 22:56:42,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 85. [2023-12-20 22:56:42,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 56 states have internal predecessors, (63), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-20 22:56:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2023-12-20 22:56:42,971 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 99 [2023-12-20 22:56:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:56:42,972 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2023-12-20 22:56:42,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-20 22:56:42,972 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2023-12-20 22:56:42,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 22:56:42,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:56:42,974 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:42,983 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 22:56:43,189 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 22:56:43,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:56:43,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:56:43,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1414305975, now seen corresponding path program 1 times [2023-12-20 22:56:43,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:56:43,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517535738] [2023-12-20 22:56:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:56:43,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:56:43,211 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:56:43,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325720808] [2023-12-20 22:56:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:56:43,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:56:43,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:56:43,231 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 22:56:43,232 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 22:56:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:56:43,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-20 22:56:43,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:56:47,342 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-20 22:56:47,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 22:57:09,364 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-20 22:57:09,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:57:09,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517535738] [2023-12-20 22:57:09,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:57:09,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325720808] [2023-12-20 22:57:09,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325720808] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 22:57:09,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 22:57:09,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-12-20 22:57:09,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237395033] [2023-12-20 22:57:09,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:57:09,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 22:57:09,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:57:09,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 22:57:09,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-20 22:57:09,367 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-20 22:57:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:57:15,699 INFO L93 Difference]: Finished difference Result 107 states and 141 transitions. [2023-12-20 22:57:15,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 22:57:15,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-20 22:57:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:57:15,702 INFO L225 Difference]: With dead ends: 107 [2023-12-20 22:57:15,702 INFO L226 Difference]: Without dead ends: 105 [2023-12-20 22:57:15,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-12-20 22:57:15,703 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 66 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 22:57:15,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 320 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 22:57:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-20 22:57:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 81. [2023-12-20 22:57:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 50 states have (on average 1.16) internal successors, (58), 52 states have internal predecessors, (58), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-20 22:57:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2023-12-20 22:57:15,722 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 99 [2023-12-20 22:57:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:57:15,723 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2023-12-20 22:57:15,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-20 22:57:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2023-12-20 22:57:15,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 22:57:15,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:57:15,725 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:15,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 22:57:15,936 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 22:57:15,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:57:15,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:57:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1785712329, now seen corresponding path program 1 times [2023-12-20 22:57:15,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:57:15,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818927323] [2023-12-20 22:57:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:57:15,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:57:15,970 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:57:15,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996503322] [2023-12-20 22:57:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:57:15,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:57:15,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:57:15,972 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 22:57:15,974 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 22:57:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-20 22:57:16,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-20 22:57:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-20 22:57:16,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-20 22:57:16,890 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-20 22:57:16,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 22:57:16,897 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 22:57:17,097 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 22:57:17,100 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-20 22:57:17,103 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 22:57:17,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 10:57:17 BoogieIcfgContainer [2023-12-20 22:57:17,157 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 22:57:17,158 INFO L158 Benchmark]: Toolchain (without parser) took 67390.10ms. Allocated memory was 296.7MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 254.4MB in the beginning and 3.1GB in the end (delta: -2.8GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-20 22:57:17,158 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 241.2MB. Free memory is still 193.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 22:57:17,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.15ms. Allocated memory is still 296.7MB. Free memory was 254.4MB in the beginning and 242.3MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-20 22:57:17,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.09ms. Allocated memory is still 296.7MB. Free memory was 242.3MB in the beginning and 240.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 22:57:17,159 INFO L158 Benchmark]: Boogie Preprocessor took 29.83ms. Allocated memory is still 296.7MB. Free memory was 240.2MB in the beginning and 238.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 22:57:17,159 INFO L158 Benchmark]: RCFGBuilder took 370.02ms. Allocated memory is still 296.7MB. Free memory was 238.1MB in the beginning and 220.8MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-20 22:57:17,159 INFO L158 Benchmark]: TraceAbstraction took 66777.73ms. Allocated memory was 296.7MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 220.3MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-20 22:57:17,160 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 241.2MB. Free memory is still 193.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 183.15ms. Allocated memory is still 296.7MB. Free memory was 254.4MB in the beginning and 242.3MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.09ms. Allocated memory is still 296.7MB. Free memory was 242.3MB in the beginning and 240.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.83ms. Allocated memory is still 296.7MB. Free memory was 240.2MB in the beginning and 238.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 370.02ms. Allocated memory is still 296.7MB. Free memory was 238.1MB in the beginning and 220.8MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 66777.73ms. Allocated memory was 296.7MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 220.3MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 2.4GB. 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 bitwise operation at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] unsigned char var_1_5 = 0; [L24] signed char var_1_6 = -8; [L25] signed char var_1_7 = -2; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_9 = 0; [L28] unsigned long int var_1_10 = 128; [L29] unsigned long int var_1_11 = 25; [L30] unsigned long int var_1_12 = 1879943783; [L31] unsigned long int var_1_13 = 128; [L32] unsigned long int var_1_14 = 2555856598; [L33] unsigned long int var_1_15 = 10; [L95] isInitial = 1 [L96] FCALL initially() [L97] int k_loop; [L98] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-8, var_1_7=-2, var_1_8=1, var_1_9=0] [L98] COND TRUE k_loop < 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L63] var_1_5 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_6=-8, var_1_7=-2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_6=-8, var_1_7=-2, var_1_8=1, var_1_9=0] [L64] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_6=-8, var_1_7=-2, var_1_8=1, var_1_9=0] [L65] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-8, var_1_7=-2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-8, var_1_7=-2, var_1_8=1, var_1_9=0] [L65] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-8, var_1_7=-2, var_1_8=1, var_1_9=0] [L66] var_1_6 = __VERIFIER_nondet_char() [L67] CALL assume_abort_if_not(var_1_6 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-2, var_1_8=1, var_1_9=0] [L67] RET assume_abort_if_not(var_1_6 >= -127) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-2, var_1_8=1, var_1_9=0] [L68] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-2, var_1_8=1, var_1_9=0] [L68] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-2, var_1_8=1, var_1_9=0] [L69] var_1_7 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L70] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L71] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L72] var_1_9 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1] [L73] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1] [L74] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L74] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, var_1_10=128, var_1_11=25, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L75] var_1_11 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L76] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=128, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L77] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1879943783, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L78] var_1_12 = __VERIFIER_nondet_ulong() [L79] CALL assume_abort_if_not(var_1_12 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L79] RET assume_abort_if_not(var_1_12 >= 1073741823) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L80] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=128, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L81] var_1_13 = __VERIFIER_nondet_ulong() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_13 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L83] RET assume_abort_if_not(var_1_13 <= 1073741823) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=2555856598, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L84] var_1_14 = __VERIFIER_nondet_ulong() [L85] CALL assume_abort_if_not(var_1_14 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L85] RET assume_abort_if_not(var_1_14 >= 2147483647) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_14 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L86] RET assume_abort_if_not(var_1_14 <= 4294967294) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L100] RET updateVariables() [L101] CALL step() [L37] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L40] unsigned char stepLocal_1 = var_1_9; VAL [isInitial=1, stepLocal_1=0, var_1_10=128, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L41] COND TRUE (-2 != var_1_7) || stepLocal_1 [L42] var_1_10 = (var_1_11 + (var_1_12 - var_1_13)) VAL [isInitial=1, stepLocal_1=0, var_1_10=1, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L46] COND FALSE !(var_1_10 < var_1_10) VAL [isInitial=1, stepLocal_1=0, var_1_10=1, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-16, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L51] unsigned long int stepLocal_0 = (var_1_10 & 0u) * var_1_10; [L52] COND FALSE !(stepLocal_0 > var_1_10) [L59] var_1_1 = var_1_7 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=1, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-1, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L101] RET step() [L102] CALL, EXPR property() [L91-L92] return ((((((var_1_10 & 0u) * var_1_10) > var_1_10) ? (var_1_8 ? (var_1_1 == ((signed char) var_1_6)) : (var_1_1 == ((signed char) var_1_7))) : (var_1_1 == ((signed char) var_1_7))) && (var_1_5 ? (var_1_8 == ((unsigned char) (! (! var_1_9)))) : 1)) && (((-2 != var_1_7) || var_1_9) ? (var_1_10 == ((unsigned long int) (var_1_11 + (var_1_12 - var_1_13)))) : (var_1_10 == ((unsigned long int) (var_1_14 - var_1_13))))) && ((var_1_10 < var_1_10) ? ((var_1_12 == (var_1_14 - var_1_13)) ? (var_1_15 == ((unsigned long int) var_1_12)) : 1) : 1) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-1, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=1073741824, var_1_13=1073741823, var_1_14=4294967294, var_1_15=10, var_1_1=-1, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.7s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 584 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 400 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 660 IncrementalHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 184 mSDtfsCounter, 660 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 513 GetRequests, 463 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=2, InterpolantAutomatonStates: 39, 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, 3 MinimizatonAttempts, 57 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 49.2s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 490 ConstructedInterpolants, 8 QuantifiedInterpolants, 2706 SizeOfPredicates, 48 NumberOfNonLiveVariables, 696 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2265/2400 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 22:57:17,205 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...