/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_floatingpointinfluence_no-floats_file-29.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 19:50:49,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 19:50:49,972 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 19:50:49,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 19:50:49,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 19:50:50,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 19:50:50,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 19:50:50,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 19:50:50,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 19:50:50,005 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 19:50:50,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 19:50:50,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 19:50:50,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 19:50:50,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 19:50:50,007 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 19:50:50,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 19:50:50,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 19:50:50,008 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 19:50:50,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 19:50:50,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 19:50:50,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 19:50:50,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 19:50:50,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 19:50:50,009 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 19:50:50,009 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 19:50:50,009 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 19:50:50,010 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 19:50:50,010 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 19:50:50,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 19:50:50,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 19:50:50,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 19:50:50,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 19:50:50,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 19:50:50,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 19:50:50,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 19:50:50,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 19:50:50,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 19:50:50,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 19:50:50,012 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 19:50:50,012 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 19:50:50,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 19:50:50,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 19:50:50,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 19:50:50,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 19:50:50,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 19:50:50,013 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 19:50:50,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 19:50:50,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 19:50:50,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 19:50:50,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 19:50:50,260 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 19:50:50,260 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 19:50:50,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-29.i [2023-12-23 19:50:51,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 19:50:51,474 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 19:50:51,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-29.i [2023-12-23 19:50:51,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8177b26dc/a03f64bc4f784101923c44da1ad699ee/FLAGd2e707a29 [2023-12-23 19:50:51,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8177b26dc/a03f64bc4f784101923c44da1ad699ee [2023-12-23 19:50:51,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 19:50:51,866 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 19:50:51,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 19:50:51,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 19:50:51,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 19:50:51,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:50:51" (1/1) ... [2023-12-23 19:50:51,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c7458b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:51, skipping insertion in model container [2023-12-23 19:50:51,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:50:51" (1/1) ... [2023-12-23 19:50:51,893 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 19:50:51,983 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_floatingpointinfluence_no-floats_file-29.i[916,929] [2023-12-23 19:50:52,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 19:50:52,017 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 19:50:52,026 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_floatingpointinfluence_no-floats_file-29.i[916,929] [2023-12-23 19:50:52,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 19:50:52,058 INFO L206 MainTranslator]: Completed translation [2023-12-23 19:50:52,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52 WrapperNode [2023-12-23 19:50:52,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 19:50:52,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 19:50:52,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 19:50:52,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 19:50:52,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,087 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 80 [2023-12-23 19:50:52,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 19:50:52,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 19:50:52,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 19:50:52,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 19:50:52,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,119 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 19:50:52,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 19:50:52,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 19:50:52,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 19:50:52,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 19:50:52,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (1/1) ... [2023-12-23 19:50:52,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 19:50:52,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 19:50:52,183 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 19:50:52,220 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 19:50:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 19:50:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 19:50:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 19:50:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 19:50:52,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 19:50:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 19:50:52,333 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 19:50:52,337 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 19:50:59,118 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 19:50:59,152 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 19:50:59,152 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 19:50:59,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:50:59 BoogieIcfgContainer [2023-12-23 19:50:59,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 19:50:59,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 19:50:59,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 19:50:59,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 19:50:59,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:50:51" (1/3) ... [2023-12-23 19:50:59,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53738239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:50:59, skipping insertion in model container [2023-12-23 19:50:59,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:50:52" (2/3) ... [2023-12-23 19:50:59,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53738239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:50:59, skipping insertion in model container [2023-12-23 19:50:59,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:50:59" (3/3) ... [2023-12-23 19:50:59,161 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-29.i [2023-12-23 19:50:59,176 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 19:50:59,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 19:50:59,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 19:50:59,226 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;@2ab9d8fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 19:50:59,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 19:50:59,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-23 19:50:59,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-23 19:50:59,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:50:59,243 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 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 19:50:59,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:50:59,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:50:59,251 INFO L85 PathProgramCache]: Analyzing trace with hash -960659490, now seen corresponding path program 1 times [2023-12-23 19:50:59,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:50:59,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050237719] [2023-12-23 19:50:59,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:50:59,265 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 19:50:59,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:50:59,269 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 19:50:59,270 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 19:50:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:50:59,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 19:50:59,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:50:59,478 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-23 19:50:59,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:50:59,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:50:59,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050237719] [2023-12-23 19:50:59,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050237719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:50:59,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:50:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 19:50:59,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122784846] [2023-12-23 19:50:59,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:50:59,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 19:50:59,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:50:59,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 19:50:59,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 19:50:59,505 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-23 19:51:02,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 19:51:08,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 19:51:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:51:09,732 INFO L93 Difference]: Finished difference Result 75 states and 126 transitions. [2023-12-23 19:51:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 19:51:09,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 54 [2023-12-23 19:51:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:51:09,740 INFO L225 Difference]: With dead ends: 75 [2023-12-23 19:51:09,740 INFO L226 Difference]: Without dead ends: 43 [2023-12-23 19:51:09,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 19:51:09,744 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 12 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-12-23 19:51:09,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 70 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2023-12-23 19:51:09,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-23 19:51:09,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2023-12-23 19:51:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-23 19:51:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2023-12-23 19:51:09,785 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 54 [2023-12-23 19:51:09,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:51:09,786 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2023-12-23 19:51:09,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-23 19:51:09,787 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2023-12-23 19:51:09,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-23 19:51:09,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:51:09,791 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 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 19:51:09,798 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 19:51:09,997 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 19:51:09,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:51:09,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:51:09,999 INFO L85 PathProgramCache]: Analyzing trace with hash -649515868, now seen corresponding path program 1 times [2023-12-23 19:51:10,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:51:10,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728265346] [2023-12-23 19:51:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:51:10,000 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 19:51:10,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:51:10,002 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 19:51:10,005 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 19:51:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:51:10,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 19:51:10,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:51:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-23 19:51:10,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:51:10,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:51:10,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728265346] [2023-12-23 19:51:10,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728265346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:51:10,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:51:10,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-23 19:51:10,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113676751] [2023-12-23 19:51:10,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:51:10,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 19:51:10,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:51:10,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 19:51:10,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-23 19:51:10,397 INFO L87 Difference]: Start difference. First operand 37 states and 54 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-23 19:51:13,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 19:51:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:51:13,485 INFO L93 Difference]: Finished difference Result 76 states and 102 transitions. [2023-12-23 19:51:13,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-23 19:51:13,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-23 19:51:13,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:51:13,524 INFO L225 Difference]: With dead ends: 76 [2023-12-23 19:51:13,525 INFO L226 Difference]: Without dead ends: 40 [2023-12-23 19:51:13,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-23 19:51:13,527 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 61 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-23 19:51:13,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 79 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-23 19:51:13,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-12-23 19:51:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2023-12-23 19:51:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-23 19:51:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-12-23 19:51:13,537 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 55 [2023-12-23 19:51:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:51:13,538 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-12-23 19:51:13,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-23 19:51:13,540 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-12-23 19:51:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-23 19:51:13,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:51:13,541 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 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 19:51:13,548 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 19:51:13,742 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 [2023-12-23 19:51:13,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:51:13,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:51:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash -124422920, now seen corresponding path program 1 times [2023-12-23 19:51:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:51:13,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027157988] [2023-12-23 19:51:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:51:13,745 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 19:51:13,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:51:13,760 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) [2023-12-23 19:51:13,762 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 [2023-12-23 19:51:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:51:13,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-23 19:51:13,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:51:53,692 WARN L293 SmtUtils]: Spent 12.92s on a formula simplification. DAG size of input: 34 DAG size of output: 28 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 20:02:26,614 WARN L293 SmtUtils]: Spent 6.83s 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 20:02:33,492 WARN L293 SmtUtils]: Spent 6.88s 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 20:02:49,677 WARN L293 SmtUtils]: Spent 5.66s 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 20:02:57,460 WARN L293 SmtUtils]: Spent 7.64s 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 20:03:15,780 WARN L293 SmtUtils]: Spent 6.49s 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 20:03:38,036 WARN L293 SmtUtils]: Spent 5.87s 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 20:03:54,862 WARN L293 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 20:04:33,084 WARN L293 SmtUtils]: Spent 7.25s 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 20:04:51,034 WARN L293 SmtUtils]: Spent 6.65s 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 20:05:08,452 WARN L293 SmtUtils]: Spent 7.66s 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 20:05:18,362 WARN L293 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 20:05:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-23 20:05:26,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 20:05:26,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 20:05:26,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027157988] [2023-12-23 20:05:26,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027157988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 20:05:26,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 20:05:26,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-23 20:05:26,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271083219] [2023-12-23 20:05:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 20:05:26,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-23 20:05:26,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 20:05:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-23 20:05:26,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-23 20:05:26,353 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 10 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-23 20:05:28,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:05:29,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:05:31,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-23 20:05:32,203 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 [2023-12-23 20:05:32,203 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 20:05:33,213 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 [2023-12-23 20:05:33,404 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 [2023-12-23 20:05:33,424 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 [2023-12-23 20:05:33,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2023-12-23 20:05:33,426 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-23 20:05:33,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 43 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-23 20:05:33,428 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 20:05:33,428 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-23 20:05:33,431 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-23 20:05:33,433 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 20:05:33,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 08:05:33 BoogieIcfgContainer [2023-12-23 20:05:33,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 20:05:33,434 INFO L158 Benchmark]: Toolchain (without parser) took 881568.19ms. Allocated memory was 191.9MB in the beginning and 949.0MB in the end (delta: 757.1MB). Free memory was 127.6MB in the beginning and 544.7MB in the end (delta: -417.1MB). Peak memory consumption was 341.4MB. Max. memory is 8.0GB. [2023-12-23 20:05:33,435 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 20:05:33,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.67ms. Allocated memory is still 191.9MB. Free memory was 127.6MB in the beginning and 114.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-23 20:05:33,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.92ms. Allocated memory is still 191.9MB. Free memory was 114.8MB in the beginning and 112.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 20:05:33,435 INFO L158 Benchmark]: Boogie Preprocessor took 46.46ms. Allocated memory is still 191.9MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 20:05:33,435 INFO L158 Benchmark]: RCFGBuilder took 7019.27ms. Allocated memory was 191.9MB in the beginning and 231.7MB in the end (delta: 39.8MB). Free memory was 110.4MB in the beginning and 192.5MB in the end (delta: -82.1MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2023-12-23 20:05:33,436 INFO L158 Benchmark]: TraceAbstraction took 874277.98ms. Allocated memory was 231.7MB in the beginning and 949.0MB in the end (delta: 717.2MB). Free memory was 192.0MB in the beginning and 544.7MB in the end (delta: -352.7MB). Peak memory consumption was 364.6MB. Max. memory is 8.0GB. [2023-12-23 20:05:33,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.67ms. Allocated memory is still 191.9MB. Free memory was 127.6MB in the beginning and 114.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.92ms. Allocated memory is still 191.9MB. Free memory was 114.8MB in the beginning and 112.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.46ms. Allocated memory is still 191.9MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 7019.27ms. Allocated memory was 191.9MB in the beginning and 231.7MB in the end (delta: 39.8MB). Free memory was 110.4MB in the beginning and 192.5MB in the end (delta: -82.1MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. * TraceAbstraction took 874277.98ms. Allocated memory was 231.7MB in the beginning and 949.0MB in the end (delta: 717.2MB). Free memory was 192.0MB in the beginning and 544.7MB in the end (delta: -352.7MB). Peak memory consumption was 364.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 874.2s, OverallIterations: 3, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 18.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 18.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 78 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 31.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 852.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 161 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 19 NumberOfNonLiveVariables, 301 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 336/336 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