/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-while_file-33.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 22:46:13,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 22:46:13,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 22:46:13,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 22:46:13,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 22:46:13,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 22:46:13,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 22:46:13,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 22:46:13,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 22:46:13,673 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 22:46:13,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 22:46:13,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 22:46:13,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 22:46:13,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 22:46:13,675 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 22:46:13,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 22:46:13,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 22:46:13,676 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 22:46:13,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 22:46:13,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 22:46:13,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 22:46:13,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 22:46:13,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 22:46:13,678 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 22:46:13,678 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 22:46:13,678 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 22:46:13,678 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 22:46:13,679 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 22:46:13,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 22:46:13,679 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 22:46:13,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 22:46:13,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 22:46:13,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 22:46:13,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 22:46:13,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 22:46:13,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 22:46:13,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 22:46:13,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 22:46:13,682 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 22:46:13,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 22:46:13,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 22:46:13,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 22:46:13,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 22:46:13,903 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 22:46:13,903 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 22:46:13,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-33.i [2023-12-23 22:46:14,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 22:46:15,131 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 22:46:15,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-33.i [2023-12-23 22:46:15,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1521d7497/fda68b277fcb43bcad03be1a799a4755/FLAG61ca9db79 [2023-12-23 22:46:15,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1521d7497/fda68b277fcb43bcad03be1a799a4755 [2023-12-23 22:46:15,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 22:46:15,158 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 22:46:15,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 22:46:15,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 22:46:15,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 22:46:15,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4175dc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15, skipping insertion in model container [2023-12-23 22:46:15,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,195 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 22:46:15,312 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-while_file-33.i[916,929] [2023-12-23 22:46:15,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 22:46:15,385 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 22:46:15,393 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-while_file-33.i[916,929] [2023-12-23 22:46:15,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 22:46:15,458 INFO L206 MainTranslator]: Completed translation [2023-12-23 22:46:15,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15 WrapperNode [2023-12-23 22:46:15,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 22:46:15,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 22:46:15,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 22:46:15,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 22:46:15,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,500 INFO L138 Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 234 [2023-12-23 22:46:15,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 22:46:15,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 22:46:15,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 22:46:15,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 22:46:15,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,534 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]. [2023-12-23 22:46:15,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 22:46:15,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 22:46:15,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 22:46:15,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 22:46:15,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (1/1) ... [2023-12-23 22:46:15,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 22:46:15,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 22:46:15,596 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) [2023-12-23 22:46:15,638 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 [2023-12-23 22:46:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 22:46:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 22:46:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 22:46:15,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 22:46:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 22:46:15,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 22:46:15,725 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 22:46:15,727 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 22:46:19,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 22:46:19,633 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 22:46:19,633 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 22:46:19,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:46:19 BoogieIcfgContainer [2023-12-23 22:46:19,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 22:46:19,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 22:46:19,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 22:46:19,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 22:46:19,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:46:15" (1/3) ... [2023-12-23 22:46:19,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddb8afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:46:19, skipping insertion in model container [2023-12-23 22:46:19,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:46:15" (2/3) ... [2023-12-23 22:46:19,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddb8afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:46:19, skipping insertion in model container [2023-12-23 22:46:19,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:46:19" (3/3) ... [2023-12-23 22:46:19,639 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-33.i [2023-12-23 22:46:19,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 22:46:19,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 22:46:19,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 22:46:19,691 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;@25538890, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 22:46:19,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 22:46:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 56 states have (on average 1.375) internal successors, (77), 57 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 22:46:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-23 22:46:19,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:46:19,708 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:46:19,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:46:19,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:46:19,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1644179058, now seen corresponding path program 1 times [2023-12-23 22:46:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:46:19,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509763071] [2023-12-23 22:46:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:46:19,722 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 [2023-12-23 22:46:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:46:19,724 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) [2023-12-23 22:46:19,729 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 [2023-12-23 22:46:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:46:20,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 22:46:20,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:46:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1274 proven. 0 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2023-12-23 22:46:20,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 22:46:20,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 22:46:20,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509763071] [2023-12-23 22:46:20,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509763071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 22:46:20,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 22:46:20,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 22:46:20,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989882389] [2023-12-23 22:46:20,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 22:46:20,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 22:46:20,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 22:46:20,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 22:46:20,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 22:46:20,362 INFO L87 Difference]: Start difference. First operand has 97 states, 56 states have (on average 1.375) internal successors, (77), 57 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 22:46:22,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:46:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 22:46:22,433 INFO L93 Difference]: Finished difference Result 191 states and 342 transitions. [2023-12-23 22:46:22,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 22:46:22,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 235 [2023-12-23 22:46:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 22:46:22,469 INFO L225 Difference]: With dead ends: 191 [2023-12-23 22:46:22,469 INFO L226 Difference]: Without dead ends: 95 [2023-12-23 22:46:22,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 22:46:22,474 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-23 22:46:22,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-23 22:46:22,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-23 22:46:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-23 22:46:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 55 states have (on average 1.309090909090909) internal successors, (72), 55 states have internal predecessors, (72), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 22:46:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2023-12-23 22:46:22,509 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 235 [2023-12-23 22:46:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 22:46:22,509 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2023-12-23 22:46:22,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 22:46:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2023-12-23 22:46:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-23 22:46:22,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:46:22,513 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:46:22,537 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 (2)] Ended with exit code 0 [2023-12-23 22:46:22,723 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 [2023-12-23 22:46:22,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:46:22,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:46:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1580632694, now seen corresponding path program 1 times [2023-12-23 22:46:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:46:22,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151590783] [2023-12-23 22:46:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:46:22,725 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 [2023-12-23 22:46:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:46:22,728 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) [2023-12-23 22:46:22,731 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 [2023-12-23 22:46:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:46:23,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 22:46:23,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:46:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 37 proven. 111 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2023-12-23 22:46:23,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 22:46:23,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 22:46:23,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151590783] [2023-12-23 22:46:23,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151590783] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 22:46:23,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [705518547] [2023-12-23 22:46:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:46:23,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 22:46:23,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 22:46:24,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 22:46:24,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 22:46:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:46:25,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 22:46:25,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:46:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 37 proven. 111 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2023-12-23 22:46:25,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 22:46:26,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [705518547] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 22:46:26,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 22:46:26,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 9 [2023-12-23 22:46:26,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312893184] [2023-12-23 22:46:26,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 22:46:26,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 22:46:26,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 22:46:26,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 22:46:26,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-23 22:46:26,339 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 22:46:29,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 22:46:32,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 22:46:34,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 22:46:34,524 INFO L93 Difference]: Finished difference Result 349 states and 534 transitions. [2023-12-23 22:46:34,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-23 22:46:34,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) Word has length 235 [2023-12-23 22:46:34,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 22:46:34,539 INFO L225 Difference]: With dead ends: 349 [2023-12-23 22:46:34,540 INFO L226 Difference]: Without dead ends: 255 [2023-12-23 22:46:34,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 498 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2023-12-23 22:46:34,542 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 287 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-23 22:46:34,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 797 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-23 22:46:34,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-23 22:46:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 141. [2023-12-23 22:46:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 93 states have internal predecessors, (123), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-23 22:46:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 211 transitions. [2023-12-23 22:46:34,569 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 211 transitions. Word has length 235 [2023-12-23 22:46:34,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 22:46:34,570 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 211 transitions. [2023-12-23 22:46:34,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 22:46:34,570 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 211 transitions. [2023-12-23 22:46:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-23 22:46:34,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:46:34,573 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:46:34,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-23 22:46:34,792 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 [2023-12-23 22:46:34,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-23 22:46:34,983 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:46:34,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:46:34,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1523374392, now seen corresponding path program 1 times [2023-12-23 22:46:34,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:46:34,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048328544] [2023-12-23 22:46:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:46:34,984 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 [2023-12-23 22:46:34,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:46:34,987 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) [2023-12-23 22:46:35,004 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 [2023-12-23 22:46:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:46:35,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 75 conjunts are in the unsatisfiable core [2023-12-23 22:46:35,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:47:55,821 WARN L293 SmtUtils]: Spent 7.85s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:01,640 WARN L293 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:08,594 WARN L293 SmtUtils]: Spent 6.95s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:14,193 WARN L293 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:20,448 WARN L293 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:30,812 WARN L293 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:36,111 WARN L293 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:42,167 WARN L293 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:49,999 WARN L293 SmtUtils]: Spent 7.83s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:48:59,703 WARN L293 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:49:18,235 WARN L293 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:49:23,537 WARN L293 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:49:37,653 WARN L293 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:49:43,117 WARN L293 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:49:51,205 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:49:57,986 WARN L293 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:50:11,596 WARN L293 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:50:16,860 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:50:30,139 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:51:01,825 WARN L293 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:51:08,519 WARN L293 SmtUtils]: Spent 6.69s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:51:29,262 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:51:35,570 WARN L293 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:52:11,717 WARN L293 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:52:25,277 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:52:33,696 WARN L293 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:52:41,785 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:52:47,110 WARN L293 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:52:53,583 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse6 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (let ((.cse2 ((_ zero_extend 16) c_~var_1_33~0)) (.cse4 ((_ sign_extend 24) c_~var_1_19~0)) (.cse5 ((_ sign_extend 24) c_~var_1_8~0)) (.cse10 ((_ sign_extend 24) c_~var_1_5~0)) (.cse13 ((_ sign_extend 24) c_~var_1_6~0)) (.cse12 ((_ zero_extend 24) c_~var_1_10~0)) (.cse0 ((_ zero_extend 24) c_~var_1_29~0)) (.cse11 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0)) (.cse17 ((_ zero_extend 24) c_~var_1_22~0)) (.cse1 ((_ sign_extend 24) c_~var_1_7~0)) (.cse3 ((_ zero_extend 16) c_~var_1_26~0)) (.cse9 (fp.neg .cse6)) (.cse8 (fp.neg .cse7))) (and (= c_~var_1_27~0 ((_ extract 7 0) (bvadd (bvneg (bvadd .cse0 (_ bv4294967288 32) ((_ zero_extend 24) c_~var_1_30~0))) ((_ zero_extend 24) c_~var_1_28~0)))) (bvsle .cse1 (_ bv63 32)) (= (bvadd (_ bv256 32) c_~var_1_1~0) (bvadd c_~var_1_2~0 (bvneg .cse2))) (= ((_ extract 15 0) (bvadd .cse3 (bvneg .cse4))) c_~var_1_25~0) (= c_~var_1_29~0 c_~var_1_41~0) (= c_~var_1_35~0 c_~var_1_42~0) (= c_~var_1_23~0 (_ bv0 8)) (not (= (bvadd .cse4 .cse2) .cse5)) (or (and (fp.leq c_~var_1_38~0 .cse6) (fp.geq c_~var_1_38~0 .cse7)) (and (fp.leq c_~var_1_38~0 .cse8) (fp.geq c_~var_1_38~0 .cse9))) (bvsle .cse10 (_ bv32 32)) (fp.leq c_~var_1_14~0 .cse11) (= ((_ extract 7 0) (bvadd .cse12 (_ bv1 32))) c_~var_1_9~0) (= .cse10 c_~var_1_15~0) (or (and (fp.geq c_~var_1_37~0 .cse9) (fp.leq c_~var_1_37~0 .cse8)) (and (fp.geq c_~var_1_37~0 .cse7) (fp.leq c_~var_1_37~0 .cse6))) (bvsge .cse13 (_ bv4294967265 32)) (bvugt .cse4 (bvadd .cse5 c_~var_1_32~0)) (= c_~var_1_22~0 c_~var_1_18~0) (fp.geq c_~var_1_14~0 .cse7) (bvsgt c_~var_1_15~0 (_ bv4294967295 32)) (bvsle ((_ zero_extend 24) c_~var_1_24~0) (_ bv0 32)) (= ((_ zero_extend 8) c_~var_1_10~0) c_~var_1_31~0) (let ((.cse15 (bvadd .cse13 .cse1 .cse10))) (let ((.cse14 (bvsgt .cse15 .cse5))) (or (and (= c_~var_1_4~0 ((_ extract 7 0) .cse5)) (not .cse14)) (and .cse14 (= ((_ extract 7 0) .cse15) c_~var_1_4~0))))) (bvsle .cse13 (_ bv31 32)) (not (bvslt c_~var_1_1~0 (bvand c_~var_1_1~0 (bvor .cse1 .cse12)))) (bvsge ((_ zero_extend 24) c_~var_1_21~0) (_ bv1 32)) (= c_~last_1_var_1_25~0 (_ bv32 16)) (let ((.cse16 (bvslt c_~var_1_1~0 .cse0))) (or (and (not .cse16) (= .cse0 c_~var_1_32~0)) (and .cse16 (= c_~var_1_1~0 c_~var_1_32~0)))) (bvsle .cse17 (_ bv1 32)) (fp.leq c_~var_1_39~0 .cse11) (fp.geq c_~var_1_39~0 .cse7) (bvsge .cse17 (_ bv1 32)) (bvslt (_ bv32 32) .cse1) (or (and (fp.leq c_~var_1_36~0 .cse8) (fp.geq c_~var_1_36~0 .cse9)) (and (fp.leq c_~var_1_36~0 .cse6) (fp.geq c_~var_1_36~0 .cse7))) (bvsge ((_ zero_extend 24) c_~var_1_20~0) (_ bv1 32)) (let ((.cse19 (fp.lt c_~var_1_37~0 c_~var_1_38~0))) (let ((.cse18 (fp.lt c_~var_1_35~0 c_~var_1_36~0)) (.cse20 (fp.sub c_currentRoundingMode c_~var_1_14~0 c_~var_1_39~0)) (.cse21 (not .cse19))) (or (and .cse18 (or (and .cse19 (= c_~var_1_34~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_35~0 c_~var_1_37~0) .cse20))) (and .cse21 (= (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_35~0 c_~var_1_38~0) .cse20) c_~var_1_34~0)))) (and (not .cse18) (or (and (= (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_36~0 c_~var_1_37~0) .cse20) c_~var_1_34~0) .cse19) (and (= c_~var_1_34~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_36~0 c_~var_1_38~0) .cse20)) .cse21)))))) (= ((_ extract 15 0) (bvadd .cse3 (bvneg c_~var_1_15~0))) c_~var_1_33~0) (= c_currentRoundingMode roundNearestTiesToEven) (or (and (fp.leq c_~var_1_35~0 .cse6) (fp.geq c_~var_1_35~0 .cse7)) (and (fp.geq c_~var_1_35~0 .cse9) (fp.leq c_~var_1_35~0 .cse8)))))) is different from true