/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_operatoramount_amount250_file-89.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:47:37,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:47:37,640 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 14:47:37,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:47:37,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:47:37,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:47:37,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:47:37,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:47:37,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:47:37,676 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:47:37,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:47:37,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:47:37,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:47:37,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:47:37,678 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:47:37,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:47:37,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:47:37,679 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:47:37,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:47:37,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:47:37,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:47:37,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:47:37,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:47:37,680 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:47:37,680 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:47:37,680 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:47:37,680 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:47:37,680 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:47:37,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:47:37,681 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:47:37,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:47:37,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:47:37,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:47:37,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:47:37,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:47:37,682 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:47:37,682 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:47:37,682 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:47:37,682 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:47:37,683 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:47:37,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:47:37,683 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:47:37,683 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:47:37,683 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:47:37,683 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:47:37,684 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:47:37,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:47:37,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:47:37,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:47:37,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:47:37,914 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:47:37,915 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:47:37,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i [2023-12-16 14:47:38,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:47:39,114 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:47:39,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i [2023-12-16 14:47:39,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0f107f2/6e4fdd1e5ef04623a3730177c75b6b98/FLAG1c70f3597 [2023-12-16 14:47:39,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0f107f2/6e4fdd1e5ef04623a3730177c75b6b98 [2023-12-16 14:47:39,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:47:39,141 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:47:39,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:47:39,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:47:39,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:47:39,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e260adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39, skipping insertion in model container [2023-12-16 14:47:39,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,193 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:47:39,302 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_operatoramount_amount250_file-89.i[916,929] [2023-12-16 14:47:39,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:47:39,426 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:47:39,434 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_operatoramount_amount250_file-89.i[916,929] [2023-12-16 14:47:39,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:47:39,522 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:47:39,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39 WrapperNode [2023-12-16 14:47:39,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:47:39,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:47:39,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:47:39,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:47:39,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,594 INFO L138 Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 339 [2023-12-16 14:47:39,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:47:39,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:47:39,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:47:39,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:47:39,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,639 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 14:47:39,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:47:39,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:47:39,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:47:39,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:47:39,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (1/1) ... [2023-12-16 14:47:39,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:47:39,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:47:39,719 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 14:47:39,744 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 14:47:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:47:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:47:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:47:39,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:47:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:47:39,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:47:39,849 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:47:39,851 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:47:46,227 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:47:46,289 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:47:46,289 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:47:46,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:47:46 BoogieIcfgContainer [2023-12-16 14:47:46,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:47:46,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:47:46,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:47:46,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:47:46,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:47:39" (1/3) ... [2023-12-16 14:47:46,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36802018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:47:46, skipping insertion in model container [2023-12-16 14:47:46,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:47:39" (2/3) ... [2023-12-16 14:47:46,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36802018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:47:46, skipping insertion in model container [2023-12-16 14:47:46,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:47:46" (3/3) ... [2023-12-16 14:47:46,296 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-89.i [2023-12-16 14:47:46,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:47:46,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:47:46,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:47:46,363 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;@31fabaf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:47:46,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:47:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 95 states have (on average 1.568421052631579) internal successors, (149), 96 states have internal predecessors, (149), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 14:47:46,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-16 14:47:46,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:47:46,384 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:46,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:47:46,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:47:46,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1948651482, now seen corresponding path program 1 times [2023-12-16 14:47:46,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:47:46,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639809387] [2023-12-16 14:47:46,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:47:46,401 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 14:47:46,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:47:46,403 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 14:47:46,409 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 14:47:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:47:47,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:47:47,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:47:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1812 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2023-12-16 14:47:47,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:47:47,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:47:47,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639809387] [2023-12-16 14:47:47,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639809387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:47:47,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:47:47,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:47:47,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115258523] [2023-12-16 14:47:47,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:47:47,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:47:47,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:47:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:47:47,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:47:47,214 INFO L87 Difference]: Start difference. First operand has 141 states, 95 states have (on average 1.568421052631579) internal successors, (149), 96 states have internal predecessors, (149), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-16 14:47:51,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:47:51,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:47:51,443 INFO L93 Difference]: Finished difference Result 279 states and 511 transitions. [2023-12-16 14:47:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:47:51,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 279 [2023-12-16 14:47:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:47:51,520 INFO L225 Difference]: With dead ends: 279 [2023-12-16 14:47:51,520 INFO L226 Difference]: Without dead ends: 139 [2023-12-16 14:47:51,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 278 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 14:47:51,525 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 14:47:51,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 14:47:51,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-16 14:47:51,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2023-12-16 14:47:51,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 94 states have (on average 1.5319148936170213) internal successors, (144), 94 states have internal predecessors, (144), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 14:47:51,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 230 transitions. [2023-12-16 14:47:51,562 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 230 transitions. Word has length 279 [2023-12-16 14:47:51,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:47:51,562 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 230 transitions. [2023-12-16 14:47:51,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-16 14:47:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 230 transitions. [2023-12-16 14:47:51,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-16 14:47:51,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:47:51,567 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:51,587 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 14:47:51,774 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 14:47:51,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:47:51,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:47:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1692738252, now seen corresponding path program 1 times [2023-12-16 14:47:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:47:51,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697318911] [2023-12-16 14:47:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:47:51,776 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 14:47:51,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:47:51,778 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 14:47:51,782 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 14:47:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:47:52,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 14:47:52,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:47:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 658 proven. 114 refuted. 0 times theorem prover too weak. 2840 trivial. 0 not checked. [2023-12-16 14:47:54,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:47:55,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 12 proven. 114 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-16 14:47:55,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:47:55,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697318911] [2023-12-16 14:47:55,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697318911] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:47:55,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:47:55,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 14:47:55,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270911046] [2023-12-16 14:47:55,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:47:55,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 14:47:55,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:47:55,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 14:47:55,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 14:47:55,066 INFO L87 Difference]: Start difference. First operand 139 states and 230 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2023-12-16 14:48:00,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:03,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:48:03,549 INFO L93 Difference]: Finished difference Result 286 states and 467 transitions. [2023-12-16 14:48:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 14:48:03,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 279 [2023-12-16 14:48:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:48:03,552 INFO L225 Difference]: With dead ends: 286 [2023-12-16 14:48:03,552 INFO L226 Difference]: Without dead ends: 148 [2023-12-16 14:48:03,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 550 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:48:03,553 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 209 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-16 14:48:03,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 405 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2023-12-16 14:48:03,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-16 14:48:03,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2023-12-16 14:48:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 95 states have (on average 1.4526315789473685) internal successors, (138), 96 states have internal predecessors, (138), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 14:48:03,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 232 transitions. [2023-12-16 14:48:03,571 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 232 transitions. Word has length 279 [2023-12-16 14:48:03,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:48:03,572 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 232 transitions. [2023-12-16 14:48:03,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2023-12-16 14:48:03,572 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 232 transitions. [2023-12-16 14:48:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-16 14:48:03,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:48:03,575 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:48:03,604 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 14:48:03,776 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 14:48:03,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:48:03,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:48:03,777 INFO L85 PathProgramCache]: Analyzing trace with hash -933293928, now seen corresponding path program 1 times [2023-12-16 14:48:03,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:48:03,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185333970] [2023-12-16 14:48:03,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:48:03,778 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 14:48:03,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:48:03,780 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 14:48:03,784 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 14:48:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:48:04,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 14:48:04,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:48:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-16 14:48:04,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:48:04,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:48:04,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185333970] [2023-12-16 14:48:04,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185333970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:48:04,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:48:04,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:48:04,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999203151] [2023-12-16 14:48:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:48:04,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 14:48:04,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:48:04,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 14:48:04,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 14:48:04,391 INFO L87 Difference]: Start difference. First operand 145 states and 232 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 14:48:08,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:12,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:48:12,587 INFO L93 Difference]: Finished difference Result 283 states and 453 transitions. [2023-12-16 14:48:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 14:48:12,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 280 [2023-12-16 14:48:12,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:48:12,659 INFO L225 Difference]: With dead ends: 283 [2023-12-16 14:48:12,660 INFO L226 Difference]: Without dead ends: 145 [2023-12-16 14:48:12,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 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 14:48:12,661 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 96 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-12-16 14:48:12,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 331 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-12-16 14:48:12,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-12-16 14:48:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-12-16 14:48:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 96 states have internal predecessors, (137), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 14:48:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 231 transitions. [2023-12-16 14:48:12,672 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 231 transitions. Word has length 280 [2023-12-16 14:48:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:48:12,672 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 231 transitions. [2023-12-16 14:48:12,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 14:48:12,673 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 231 transitions. [2023-12-16 14:48:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-16 14:48:12,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:48:12,675 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:48:12,703 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 14:48:12,891 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 14:48:12,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:48:12,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:48:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash -273762406, now seen corresponding path program 1 times [2023-12-16 14:48:12,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:48:12,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235214813] [2023-12-16 14:48:12,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:48:12,895 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 14:48:12,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:48:12,896 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 14:48:12,897 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 14:48:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:48:13,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 14:48:13,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:48:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 918 proven. 108 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked. [2023-12-16 14:48:15,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:48:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 18 proven. 108 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-16 14:48:16,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:48:16,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235214813] [2023-12-16 14:48:16,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235214813] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:48:16,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:48:16,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 14:48:16,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316161712] [2023-12-16 14:48:16,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:48:16,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 14:48:16,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:48:16,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 14:48:16,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 14:48:16,242 INFO L87 Difference]: Start difference. First operand 145 states and 231 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-16 14:48:22,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:26,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:30,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:30,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:48:30,726 INFO L93 Difference]: Finished difference Result 297 states and 465 transitions. [2023-12-16 14:48:30,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 14:48:30,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 280 [2023-12-16 14:48:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:48:30,728 INFO L225 Difference]: With dead ends: 297 [2023-12-16 14:48:30,728 INFO L226 Difference]: Without dead ends: 159 [2023-12-16 14:48:30,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 552 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:48:30,729 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 189 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 20 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-16 14:48:30,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 405 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 301 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2023-12-16 14:48:30,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-16 14:48:30,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156. [2023-12-16 14:48:30,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 102 states have (on average 1.3823529411764706) internal successors, (141), 103 states have internal predecessors, (141), 49 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 14:48:30,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 239 transitions. [2023-12-16 14:48:30,739 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 239 transitions. Word has length 280 [2023-12-16 14:48:30,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:48:30,740 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 239 transitions. [2023-12-16 14:48:30,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-16 14:48:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 239 transitions. [2023-12-16 14:48:30,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-16 14:48:30,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:48:30,742 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:48:30,770 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 14:48:30,963 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 [2023-12-16 14:48:30,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:48:30,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:48:30,965 INFO L85 PathProgramCache]: Analyzing trace with hash -211722792, now seen corresponding path program 1 times [2023-12-16 14:48:30,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:48:30,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349859765] [2023-12-16 14:48:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:48:30,965 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 14:48:30,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:48:30,966 INFO L229 MonitoredProcess]: Starting monitored process 6 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 14:48:30,967 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 (6)] Waiting until timeout for monitored process [2023-12-16 14:48:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:48:31,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 14:48:31,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:48:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 86 proven. 246 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2023-12-16 14:48:35,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:48:36,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:48:36,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349859765] [2023-12-16 14:48:36,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349859765] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:48:36,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [363210171] [2023-12-16 14:48:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:48:36,226 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 14:48:36,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 14:48:36,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 14:48:36,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-16 14:48:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:48:36,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 14:48:36,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:48:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-16 14:48:37,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:48:37,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [363210171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:48:37,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 14:48:37,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-16 14:48:37,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645221394] [2023-12-16 14:48:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:48:37,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 14:48:37,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:48:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 14:48:37,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-16 14:48:37,234 INFO L87 Difference]: Start difference. First operand 156 states and 239 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 14:48:43,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:47,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:52,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-16 14:48:55,390 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:48:55,424 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:48:55,427 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 14:48:56,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:48:56,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-16 14:48:56,448 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 14:48:56,628 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 14:48:56,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-16 14:48:56,643 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 368 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2023-12-16 14:48:56,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 598 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 155 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time] [2023-12-16 14:48:56,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 14:48:56,644 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:48:56,646 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 14:48:56,649 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 14:48:56,650 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:48:56,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:48:56 BoogieIcfgContainer [2023-12-16 14:48:56,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:48:56,652 INFO L158 Benchmark]: Toolchain (without parser) took 77510.70ms. Allocated memory was 191.9MB in the beginning and 259.0MB in the end (delta: 67.1MB). Free memory was 136.2MB in the beginning and 188.0MB in the end (delta: -51.8MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. [2023-12-16 14:48:56,652 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:48:56,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.28ms. Allocated memory is still 191.9MB. Free memory was 136.0MB in the beginning and 160.1MB in the end (delta: -24.2MB). Peak memory consumption was 31.0MB. Max. memory is 8.0GB. [2023-12-16 14:48:56,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.54ms. Allocated memory is still 191.9MB. Free memory was 160.1MB in the beginning and 155.3MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 14:48:56,653 INFO L158 Benchmark]: Boogie Preprocessor took 94.89ms. Allocated memory is still 191.9MB. Free memory was 155.3MB in the beginning and 146.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 14:48:56,653 INFO L158 Benchmark]: RCFGBuilder took 6598.60ms. Allocated memory is still 191.9MB. Free memory was 146.4MB in the beginning and 96.6MB in the end (delta: 49.8MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2023-12-16 14:48:56,653 INFO L158 Benchmark]: TraceAbstraction took 70360.26ms. Allocated memory was 191.9MB in the beginning and 259.0MB in the end (delta: 67.1MB). Free memory was 96.1MB in the beginning and 188.0MB in the end (delta: -91.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:48:56,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.28ms. Allocated memory is still 191.9MB. Free memory was 136.0MB in the beginning and 160.1MB in the end (delta: -24.2MB). Peak memory consumption was 31.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.54ms. Allocated memory is still 191.9MB. Free memory was 160.1MB in the beginning and 155.3MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 94.89ms. Allocated memory is still 191.9MB. Free memory was 155.3MB in the beginning and 146.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 6598.60ms. Allocated memory is still 191.9MB. Free memory was 146.4MB in the beginning and 96.6MB in the end (delta: 49.8MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * TraceAbstraction took 70360.26ms. Allocated memory was 191.9MB in the beginning and 259.0MB in the end (delta: 67.1MB). Free memory was 96.1MB in the beginning and 188.0MB in the end (delta: -91.9MB). There was no memory consumed. 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.3s, OverallIterations: 5, TraceHistogramMax: 43, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 55.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 872 SdHoareTripleChecker+Valid, 53.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 862 mSDsluCounter, 1966 SdHoareTripleChecker+Invalid, 53.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 981 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 744 IncrementalHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 985 mSDtfsCounter, 744 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2281 GetRequests, 2247 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 1678 NumberOfCodeBlocks, 1678 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 2229 ConstructedInterpolants, 0 QuantifiedInterpolants, 5621 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2846 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 28206/28896 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