/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-47.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:34:24,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:34:24,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 13:34:24,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:34:24,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:34:24,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:34:24,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:34:24,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:34:24,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:34:24,421 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:34:24,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:34:24,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:34:24,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:34:24,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:34:24,423 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:34:24,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:34:24,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:34:24,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:34:24,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:34:24,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:34:24,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:34:24,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:34:24,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:34:24,426 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:34:24,426 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:34:24,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:34:24,426 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:34:24,426 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:34:24,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:34:24,427 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:34:24,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:34:24,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:34:24,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:34:24,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:34:24,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:34:24,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:34:24,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:34:24,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:34:24,429 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:34:24,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:34:24,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:34:24,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:34:24,430 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:34:24,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:34:24,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:34:24,430 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:34:24,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:34:24,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:34:24,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:34:24,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:34:24,626 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:34:24,626 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:34:24,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-47.i [2023-12-16 13:34:25,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:34:25,870 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:34:25,871 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-47.i [2023-12-16 13:34:25,878 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/217926321/2954ec2e23d94417ac2780d173a33a7d/FLAG3f00e344c [2023-12-16 13:34:25,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/217926321/2954ec2e23d94417ac2780d173a33a7d [2023-12-16 13:34:25,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:34:25,893 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:34:25,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:34:25,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:34:25,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:34:25,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:34:25" (1/1) ... [2023-12-16 13:34:25,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3039796d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:25, skipping insertion in model container [2023-12-16 13:34:25,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:34:25" (1/1) ... [2023-12-16 13:34:25,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:34:26,091 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-47.i[916,929] [2023-12-16 13:34:26,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:34:26,190 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:34:26,199 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-47.i[916,929] [2023-12-16 13:34:26,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:34:26,244 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:34:26,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26 WrapperNode [2023-12-16 13:34:26,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:34:26,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:34:26,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:34:26,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:34:26,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,301 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 233 [2023-12-16 13:34:26,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:34:26,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:34:26,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:34:26,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:34:26,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,328 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 13:34:26,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:34:26,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:34:26,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:34:26,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:34:26,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (1/1) ... [2023-12-16 13:34:26,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:34:26,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:34:26,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 13:34:26,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 13:34:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:34:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:34:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:34:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:34:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:34:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:34:26,538 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:34:26,539 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:34:26,889 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:34:26,946 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:34:26,946 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:34:26,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:34:26 BoogieIcfgContainer [2023-12-16 13:34:26,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:34:26,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:34:26,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:34:26,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:34:26,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:34:25" (1/3) ... [2023-12-16 13:34:26,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a05eb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:34:26, skipping insertion in model container [2023-12-16 13:34:26,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:26" (2/3) ... [2023-12-16 13:34:26,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a05eb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:34:26, skipping insertion in model container [2023-12-16 13:34:26,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:34:26" (3/3) ... [2023-12-16 13:34:26,954 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-47.i [2023-12-16 13:34:26,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:34:26,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:34:27,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:34:27,015 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;@38dc2619, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:34:27,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:34:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 56 states have (on average 1.5) internal successors, (84), 57 states have internal predecessors, (84), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 13:34:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-16 13:34:27,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:27,034 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:27,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:27,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash -577273219, now seen corresponding path program 1 times [2023-12-16 13:34:27,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:27,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928494712] [2023-12-16 13:34:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:27,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:27,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:27,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:34:27,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 13:34:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:27,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 13:34:27,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:27,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 944 proven. 0 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2023-12-16 13:34:27,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:34:27,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:34:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928494712] [2023-12-16 13:34:27,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928494712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:34:27,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:34:27,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 13:34:27,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165970184] [2023-12-16 13:34:27,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:34:27,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 13:34:27,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:34:27,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 13:34:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:34:27,475 INFO L87 Difference]: Start difference. First operand has 92 states, 56 states have (on average 1.5) internal successors, (84), 57 states have internal predecessors, (84), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 13:34:27,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:34:27,571 INFO L93 Difference]: Finished difference Result 183 states and 332 transitions. [2023-12-16 13:34:27,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 13:34:27,573 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2023-12-16 13:34:27,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:34:27,579 INFO L225 Difference]: With dead ends: 183 [2023-12-16 13:34:27,580 INFO L226 Difference]: Without dead ends: 90 [2023-12-16 13:34:27,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:34:27,588 INFO L413 NwaCegarLoop]: 142 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, 142 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 13:34:27,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 13:34:27,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-16 13:34:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-16 13:34:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 55 states have internal predecessors, (79), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 13:34:27,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 145 transitions. [2023-12-16 13:34:27,624 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 145 transitions. Word has length 204 [2023-12-16 13:34:27,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:34:27,624 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 145 transitions. [2023-12-16 13:34:27,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 13:34:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 145 transitions. [2023-12-16 13:34:27,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-16 13:34:27,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:27,627 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:27,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 13:34:27,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:27,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:27,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:27,836 INFO L85 PathProgramCache]: Analyzing trace with hash 431119223, now seen corresponding path program 1 times [2023-12-16 13:34:27,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:27,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450754432] [2023-12-16 13:34:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:27,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:27,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:27,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:34:27,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 13:34:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:28,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 13:34:28,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1223 proven. 48 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2023-12-16 13:34:28,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:34:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 138 proven. 51 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2023-12-16 13:34:28,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:34:28,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450754432] [2023-12-16 13:34:28,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450754432] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 13:34:28,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:34:28,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-12-16 13:34:28,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936286021] [2023-12-16 13:34:28,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:34:28,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 13:34:28,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:34:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 13:34:28,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2023-12-16 13:34:28,683 INFO L87 Difference]: Start difference. First operand 90 states and 145 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 3 states have call successors, (48), 3 states have call predecessors, (48), 7 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-16 13:34:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:34:29,400 INFO L93 Difference]: Finished difference Result 194 states and 300 transitions. [2023-12-16 13:34:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 13:34:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 3 states have call successors, (48), 3 states have call predecessors, (48), 7 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 204 [2023-12-16 13:34:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:34:29,403 INFO L225 Difference]: With dead ends: 194 [2023-12-16 13:34:29,403 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 13:34:29,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 392 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=488, Unknown=0, NotChecked=0, Total=702 [2023-12-16 13:34:29,404 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 240 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 13:34:29,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 352 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 13:34:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 13:34:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2023-12-16 13:34:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 13:34:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2023-12-16 13:34:29,418 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 204 [2023-12-16 13:34:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:34:29,419 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2023-12-16 13:34:29,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 3 states have call successors, (48), 3 states have call predecessors, (48), 7 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-16 13:34:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2023-12-16 13:34:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-16 13:34:29,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:29,422 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:29,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 13:34:29,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:29,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:29,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:29,633 INFO L85 PathProgramCache]: Analyzing trace with hash 469338495, now seen corresponding path program 1 times [2023-12-16 13:34:29,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:29,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884533415] [2023-12-16 13:34:29,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:29,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:29,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:29,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:34:29,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 13:34:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:29,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 13:34:29,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:29,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2023-12-16 13:34:29,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:34:29,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:34:29,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884533415] [2023-12-16 13:34:29,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884533415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:34:29,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:34:29,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 13:34:29,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588385841] [2023-12-16 13:34:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:34:29,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 13:34:29,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:34:29,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 13:34:29,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 13:34:29,865 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 13:34:29,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:34:29,975 INFO L93 Difference]: Finished difference Result 201 states and 293 transitions. [2023-12-16 13:34:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 13:34:29,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2023-12-16 13:34:29,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:34:29,977 INFO L225 Difference]: With dead ends: 201 [2023-12-16 13:34:29,977 INFO L226 Difference]: Without dead ends: 101 [2023-12-16 13:34:29,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 13:34:29,979 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 31 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 13:34:29,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 232 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 13:34:29,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-16 13:34:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-12-16 13:34:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 63 states have internal predecessors, (80), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 13:34:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2023-12-16 13:34:29,990 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 205 [2023-12-16 13:34:29,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:34:29,990 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2023-12-16 13:34:29,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 13:34:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2023-12-16 13:34:29,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-16 13:34:29,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:29,993 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:30,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 13:34:30,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:30,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:30,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1061988830, now seen corresponding path program 1 times [2023-12-16 13:34:30,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:30,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129201243] [2023-12-16 13:34:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:30,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:30,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:30,202 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:34:30,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 13:34:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:30,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 13:34:30,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1060 proven. 198 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-12-16 13:34:31,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:34:31,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:34:31,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129201243] [2023-12-16 13:34:31,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129201243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 13:34:31,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1822651644] [2023-12-16 13:34:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:31,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 13:34:31,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 13:34:31,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 13:34:31,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 13:34:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:32,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 13:34:32,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1060 proven. 198 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-12-16 13:34:33,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:34:33,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1822651644] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 13:34:33,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:34:33,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-12-16 13:34:33,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683750914] [2023-12-16 13:34:33,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:34:33,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 13:34:33,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:34:33,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 13:34:33,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-12-16 13:34:33,216 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 13:34:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:34:37,179 INFO L93 Difference]: Finished difference Result 333 states and 462 transitions. [2023-12-16 13:34:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 13:34:37,181 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 206 [2023-12-16 13:34:37,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:34:37,183 INFO L225 Difference]: With dead ends: 333 [2023-12-16 13:34:37,183 INFO L226 Difference]: Without dead ends: 233 [2023-12-16 13:34:37,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 13:34:37,184 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 177 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 13:34:37,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 701 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 13:34:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-16 13:34:37,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 223. [2023-12-16 13:34:37,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 142 states have (on average 1.232394366197183) internal successors, (175), 142 states have internal predecessors, (175), 66 states have call successors, (66), 14 states have call predecessors, (66), 14 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 13:34:37,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 307 transitions. [2023-12-16 13:34:37,209 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 307 transitions. Word has length 206 [2023-12-16 13:34:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:34:37,209 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 307 transitions. [2023-12-16 13:34:37,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 13:34:37,210 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 307 transitions. [2023-12-16 13:34:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-16 13:34:37,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:37,212 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:37,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 13:34:37,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-16 13:34:37,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 13:34:37,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:37,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:37,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2083057184, now seen corresponding path program 1 times [2023-12-16 13:34:37,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:37,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739466302] [2023-12-16 13:34:37,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:37,625 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:37,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:37,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:34:37,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 13:34:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:37,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-16 13:34:37,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 13:35:40,643 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:35:40,643 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:35:40,659 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 13:35:40,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 13:35:40,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:35:40,865 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 207 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-23-2-2-2-2-2-2-2-2-2-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-16 13:35:40,868 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 13:35:40,870 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 13:35:40,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:35:40 BoogieIcfgContainer [2023-12-16 13:35:40,871 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 13:35:40,872 INFO L158 Benchmark]: Toolchain (without parser) took 74979.32ms. Allocated memory was 220.2MB in the beginning and 376.4MB in the end (delta: 156.2MB). Free memory was 160.6MB in the beginning and 190.1MB in the end (delta: -29.5MB). Peak memory consumption was 127.3MB. Max. memory is 8.0GB. [2023-12-16 13:35:40,872 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 13:35:40,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.35ms. Allocated memory is still 220.2MB. Free memory was 160.6MB in the beginning and 142.2MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 13:35:40,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.80ms. Allocated memory is still 220.2MB. Free memory was 142.2MB in the beginning and 139.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 13:35:40,873 INFO L158 Benchmark]: Boogie Preprocessor took 43.54ms. Allocated memory is still 220.2MB. Free memory was 139.1MB in the beginning and 134.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 13:35:40,873 INFO L158 Benchmark]: RCFGBuilder took 600.95ms. Allocated memory is still 220.2MB. Free memory was 133.9MB in the beginning and 101.9MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-16 13:35:40,873 INFO L158 Benchmark]: TraceAbstraction took 73923.30ms. Allocated memory was 220.2MB in the beginning and 376.4MB in the end (delta: 156.2MB). Free memory was 101.3MB in the beginning and 190.1MB in the end (delta: -88.8MB). Peak memory consumption was 68.6MB. Max. memory is 8.0GB. [2023-12-16 13:35:40,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 351.35ms. Allocated memory is still 220.2MB. Free memory was 160.6MB in the beginning and 142.2MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.80ms. Allocated memory is still 220.2MB. Free memory was 142.2MB in the beginning and 139.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.54ms. Allocated memory is still 220.2MB. Free memory was 139.1MB in the beginning and 134.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 600.95ms. Allocated memory is still 220.2MB. Free memory was 133.9MB in the beginning and 101.9MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 73923.30ms. Allocated memory was 220.2MB in the beginning and 376.4MB in the end (delta: 156.2MB). Free memory was 101.3MB in the beginning and 190.1MB in the end (delta: -88.8MB). Peak memory consumption was 68.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 207 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-23-2-2-2-2-2-2-2-2-2-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.9s, OverallIterations: 5, TraceHistogramMax: 33, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 448 mSDsluCounter, 1427 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 912 mSDsCounter, 277 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1336 IncrementalHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 277 mSolverCounterUnsat, 515 mSDtfsCounter, 1336 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1303 GetRequests, 1243 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=4, InterpolantAutomatonStates: 51, 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, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1223 ConstructedInterpolants, 10 QuantifiedInterpolants, 4904 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1740 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 12177/12672 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown