/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:23:16,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:23:16,497 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:23:16,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:23:16,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:23:16,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:23:16,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:23:16,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:23:16,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:23:16,534 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:23:16,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:23:16,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:23:16,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:23:16,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:23:16,539 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:23:16,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:23:16,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:23:16,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:23:16,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:23:16,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:23:16,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:23:16,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:23:16,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:23:16,543 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:23:16,543 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:23:16,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:23:16,544 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:23:16,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:23:16,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:23:16,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:23:16,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:23:16,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:23:16,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:23:16,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:23:16,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:23:16,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:23:16,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:23:16,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:23:16,546 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:23:16,547 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:23:16,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:23:16,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:23:16,547 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:23:16,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:23:16,548 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:16,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:23:16,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:23:16,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:23:16,795 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:23:16,795 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:23:16,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-3.i [2024-11-05 19:23:18,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:23:18,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:23:18,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-3.i [2024-11-05 19:23:18,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96d6c2d9/4ae25b4429324301b9e809d9c50e6a88/FLAGdf256cae8 [2024-11-05 19:23:18,444 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96d6c2d9/4ae25b4429324301b9e809d9c50e6a88 [2024-11-05 19:23:18,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:23:18,448 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:23:18,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:23:18,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:23:18,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:23:18,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520c1311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18, skipping insertion in model container [2024-11-05 19:23:18,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:23:18,674 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-3.i[915,928] [2024-11-05 19:23:18,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:23:18,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:23:18,773 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-3.i[915,928] [2024-11-05 19:23:18,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:23:18,841 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:23:18,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18 WrapperNode [2024-11-05 19:23:18,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:23:18,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:23:18,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:23:18,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:23:18,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,897 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2024-11-05 19:23:18,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:23:18,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:23:18,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:23:18,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:23:18,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,930 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]. [2024-11-05 19:23:18,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:23:18,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:23:18,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:23:18,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:23:18,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (1/1) ... [2024-11-05 19:23:18,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:23:18,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:23:19,001 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) [2024-11-05 19:23:19,006 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 [2024-11-05 19:23:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:23:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:23:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:23:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:23:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:23:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:23:19,148 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:23:19,150 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:23:25,163 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-05 19:23:25,164 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:23:25,178 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:23:25,179 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:23:25,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:23:25 BoogieIcfgContainer [2024-11-05 19:23:25,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:23:25,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:23:25,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:23:25,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:23:25,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:23:18" (1/3) ... [2024-11-05 19:23:25,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17891428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:23:25, skipping insertion in model container [2024-11-05 19:23:25,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:18" (2/3) ... [2024-11-05 19:23:25,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17891428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:23:25, skipping insertion in model container [2024-11-05 19:23:25,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:23:25" (3/3) ... [2024-11-05 19:23:25,189 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-3.i [2024-11-05 19:23:25,200 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:23:25,201 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:23:25,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:23:25,259 INFO L333 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, 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;@1a6ead95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:23:25,259 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:23:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-05 19:23:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-05 19:23:25,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:23:25,283 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:23:25,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:23:25,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:23:25,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1577606440, now seen corresponding path program 1 times [2024-11-05 19:23:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:23:25,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16301504] [2024-11-05 19:23:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:23:25,304 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 [2024-11-05 19:23:25,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:23:25,308 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) [2024-11-05 19:23:25,312 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 [2024-11-05 19:23:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:23:25,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 19:23:25,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:23:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 519 proven. 72 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2024-11-05 19:23:28,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:23:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2024-11-05 19:23:29,781 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:23:29,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16301504] [2024-11-05 19:23:29,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [16301504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:23:29,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:23:29,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-05 19:23:29,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261601805] [2024-11-05 19:23:29,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:23:29,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 19:23:29,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:23:29,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 19:23:29,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-05 19:23:29,809 INFO L87 Difference]: Start difference. First operand has 94 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-05 19:23:36,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:40,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:44,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:48,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:52,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:56,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:00,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:01,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:01,709 INFO L93 Difference]: Finished difference Result 290 states and 528 transitions. [2024-11-05 19:24:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-05 19:24:01,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 193 [2024-11-05 19:24:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:01,721 INFO L225 Difference]: With dead ends: 290 [2024-11-05 19:24:01,721 INFO L226 Difference]: Without dead ends: 199 [2024-11-05 19:24:01,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-11-05 19:24:01,727 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 193 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 83 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:01,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 328 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 282 Invalid, 7 Unknown, 0 Unchecked, 31.1s Time] [2024-11-05 19:24:01,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-05 19:24:01,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 187. [2024-11-05 19:24:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 117 states have (on average 1.2905982905982907) internal successors, (151), 119 states have internal predecessors, (151), 65 states have call successors, (65), 4 states have call predecessors, (65), 4 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-05 19:24:01,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2024-11-05 19:24:01,818 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 193 [2024-11-05 19:24:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:01,819 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2024-11-05 19:24:01,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-05 19:24:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2024-11-05 19:24:01,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-05 19:24:01,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:01,828 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:01,847 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 [2024-11-05 19:24:02,030 WARN L453 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 [2024-11-05 19:24:02,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:02,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash -985539517, now seen corresponding path program 1 times [2024-11-05 19:24:02,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:02,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464021279] [2024-11-05 19:24:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:02,033 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 [2024-11-05 19:24:02,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:02,034 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) [2024-11-05 19:24:02,036 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 [2024-11-05 19:24:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:02,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 19:24:02,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:24:04,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 717 proven. 63 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2024-11-05 19:24:04,519 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 24 proven. 63 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2024-11-05 19:24:06,380 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:06,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464021279] [2024-11-05 19:24:06,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [464021279] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:24:06,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:24:06,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-05 19:24:06,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955496059] [2024-11-05 19:24:06,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:24:06,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-05 19:24:06,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-05 19:24:06,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 19:24:06,385 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-05 19:24:12,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:16,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:20,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:20,186 INFO L93 Difference]: Finished difference Result 381 states and 562 transitions. [2024-11-05 19:24:20,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-05 19:24:20,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 194 [2024-11-05 19:24:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:20,266 INFO L225 Difference]: With dead ends: 381 [2024-11-05 19:24:20,266 INFO L226 Difference]: Without dead ends: 205 [2024-11-05 19:24:20,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-05 19:24:20,272 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 148 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 42 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:20,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 238 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 157 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2024-11-05 19:24:20,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-05 19:24:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 195. [2024-11-05 19:24:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 123 states have (on average 1.2601626016260163) internal successors, (155), 125 states have internal predecessors, (155), 65 states have call successors, (65), 6 states have call predecessors, (65), 6 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-05 19:24:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 285 transitions. [2024-11-05 19:24:20,317 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 285 transitions. Word has length 194 [2024-11-05 19:24:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:20,319 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 285 transitions. [2024-11-05 19:24:20,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-05 19:24:20,320 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 285 transitions. [2024-11-05 19:24:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-05 19:24:20,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:20,324 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:20,351 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 [2024-11-05 19:24:20,524 WARN L453 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 [2024-11-05 19:24:20,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:20,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:20,525 INFO L85 PathProgramCache]: Analyzing trace with hash -284474939, now seen corresponding path program 1 times [2024-11-05 19:24:20,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:20,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472591371] [2024-11-05 19:24:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:20,526 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 [2024-11-05 19:24:20,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:20,527 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) [2024-11-05 19:24:20,528 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 [2024-11-05 19:24:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:20,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 19:24:20,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:24:22,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 663 proven. 24 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2024-11-05 19:24:22,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 144 proven. 27 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2024-11-05 19:24:26,328 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:26,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472591371] [2024-11-05 19:24:26,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [472591371] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:24:26,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:24:26,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-05 19:24:26,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682256494] [2024-11-05 19:24:26,329 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:24:26,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-05 19:24:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-05 19:24:26,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-05 19:24:26,332 INFO L87 Difference]: Start difference. First operand 195 states and 285 transitions. Second operand has 16 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 5 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) [2024-11-05 19:24:34,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:38,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:42,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:46,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:50,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:24:54,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []