/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 06:14:31,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 06:14:31,710 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 06:14:31,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 06:14:31,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 06:14:31,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 06:14:31,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 06:14:31,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 06:14:31,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 06:14:31,742 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 06:14:31,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 06:14:31,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 06:14:31,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 06:14:31,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 06:14:31,745 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 06:14:31,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 06:14:31,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 06:14:31,745 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 06:14:31,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 06:14:31,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 06:14:31,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 06:14:31,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 06:14:31,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 06:14:31,746 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 06:14:31,746 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 06:14:31,746 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 06:14:31,747 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 06:14:31,747 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 06:14:31,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 06:14:31,747 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 06:14:31,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 06:14:31,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 06:14:31,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 06:14:31,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 06:14:31,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:14:31,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 06:14:31,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 06:14:31,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 06:14:31,749 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 06:14:31,749 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 06:14:31,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 06:14:31,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 06:14:31,749 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 06:14:31,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 06:14:31,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 06:14:31,750 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 06:14:31,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 06:14:31,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 06:14:31,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 06:14:31,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 06:14:31,988 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 06:14:31,988 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 06:14:31,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i [2023-12-24 06:14:33,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 06:14:33,285 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 06:14:33,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i [2023-12-24 06:14:33,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85d0be53/040aef7038014a28b2030a9e1181b7c9/FLAGf81c9e028 [2023-12-24 06:14:33,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85d0be53/040aef7038014a28b2030a9e1181b7c9 [2023-12-24 06:14:33,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 06:14:33,305 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 06:14:33,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 06:14:33,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 06:14:33,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 06:14:33,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b904295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33, skipping insertion in model container [2023-12-24 06:14:33,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 06:14:33,445 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i[915,928] [2023-12-24 06:14:33,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:14:33,478 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 06:14:33,486 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i[915,928] [2023-12-24 06:14:33,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:14:33,520 INFO L206 MainTranslator]: Completed translation [2023-12-24 06:14:33,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33 WrapperNode [2023-12-24 06:14:33,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 06:14:33,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 06:14:33,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 06:14:33,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 06:14:33,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,565 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2023-12-24 06:14:33,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 06:14:33,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 06:14:33,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 06:14:33,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 06:14:33,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,582 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]. [2023-12-24 06:14:33,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 06:14:33,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 06:14:33,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 06:14:33,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 06:14:33,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (1/1) ... [2023-12-24 06:14:33,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:14:33,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 06:14:33,618 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) [2023-12-24 06:14:33,624 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 [2023-12-24 06:14:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 06:14:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 06:14:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 06:14:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 06:14:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 06:14:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 06:14:33,705 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 06:14:33,706 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 06:14:33,814 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 06:14:33,848 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 06:14:33,849 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 06:14:33,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:14:33 BoogieIcfgContainer [2023-12-24 06:14:33,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 06:14:33,851 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 06:14:33,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 06:14:33,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 06:14:33,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 06:14:33" (1/3) ... [2023-12-24 06:14:33,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d18857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:14:33, skipping insertion in model container [2023-12-24 06:14:33,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:14:33" (2/3) ... [2023-12-24 06:14:33,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d18857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:14:33, skipping insertion in model container [2023-12-24 06:14:33,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:14:33" (3/3) ... [2023-12-24 06:14:33,856 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-39.i [2023-12-24 06:14:33,870 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 06:14:33,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 06:14:33,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 06:14:33,928 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;@53718697, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 06:14:33,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 06:14:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-24 06:14:33,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-24 06:14:33,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:14:33,938 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:14:33,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:14:33,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:14:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1831025271, now seen corresponding path program 1 times [2023-12-24 06:14:33,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:14:33,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153613353] [2023-12-24 06:14:33,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:14:33,952 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 [2023-12-24 06:14:33,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:14:33,969 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) [2023-12-24 06:14:34,007 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 [2023-12-24 06:14:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:14:34,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 06:14:34,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:14:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-12-24 06:14:34,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:14:34,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:14:34,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153613353] [2023-12-24 06:14:34,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153613353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:14:34,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:14:34,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 06:14:34,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785730486] [2023-12-24 06:14:34,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:14:34,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 06:14:34,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:14:34,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 06:14:34,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:14:34,177 INFO L87 Difference]: Start difference. First operand has 32 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-24 06:14:34,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:14:34,200 INFO L93 Difference]: Finished difference Result 61 states and 104 transitions. [2023-12-24 06:14:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 06:14:34,202 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 72 [2023-12-24 06:14:34,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:14:34,206 INFO L225 Difference]: With dead ends: 61 [2023-12-24 06:14:34,206 INFO L226 Difference]: Without dead ends: 30 [2023-12-24 06:14:34,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:14:34,212 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:14:34,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 06:14:34,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-24 06:14:34,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-24 06:14:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-24 06:14:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2023-12-24 06:14:34,239 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 72 [2023-12-24 06:14:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:14:34,239 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2023-12-24 06:14:34,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-24 06:14:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2023-12-24 06:14:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-24 06:14:34,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:14:34,241 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:14:34,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 06:14:34,444 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 [2023-12-24 06:14:34,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:14:34,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:14:34,445 INFO L85 PathProgramCache]: Analyzing trace with hash -183788151, now seen corresponding path program 1 times [2023-12-24 06:14:34,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:14:34,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257834737] [2023-12-24 06:14:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:14:34,446 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 [2023-12-24 06:14:34,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:14:34,447 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) [2023-12-24 06:14:34,449 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 [2023-12-24 06:14:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:14:34,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-24 06:14:34,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:14:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-24 06:14:35,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:14:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-24 06:14:35,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:14:35,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257834737] [2023-12-24 06:14:35,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257834737] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 06:14:35,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 06:14:35,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-24 06:14:35,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571004220] [2023-12-24 06:14:35,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:14:35,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 06:14:35,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:14:35,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 06:14:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-24 06:14:35,616 INFO L87 Difference]: Start difference. First operand 30 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-24 06:14:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:14:35,735 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2023-12-24 06:14:35,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 06:14:35,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 72 [2023-12-24 06:14:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:14:35,738 INFO L225 Difference]: With dead ends: 36 [2023-12-24 06:14:35,739 INFO L226 Difference]: Without dead ends: 34 [2023-12-24 06:14:35,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-12-24 06:14:35,741 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:14:35,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 118 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 06:14:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-24 06:14:35,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-12-24 06:14:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-24 06:14:35,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2023-12-24 06:14:35,755 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 72 [2023-12-24 06:14:35,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:14:35,756 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2023-12-24 06:14:35,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-24 06:14:35,756 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-12-24 06:14:35,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-24 06:14:35,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:14:35,760 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:14:35,765 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 (3)] Ended with exit code 0 [2023-12-24 06:14:35,962 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 [2023-12-24 06:14:35,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:14:35,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:14:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash -183728569, now seen corresponding path program 1 times [2023-12-24 06:14:35,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:14:35,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883665602] [2023-12-24 06:14:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:14:35,964 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 [2023-12-24 06:14:35,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:14:35,965 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) [2023-12-24 06:14:35,969 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 [2023-12-24 06:14:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:14:36,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-24 06:14:36,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:14:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-24 06:14:36,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:14:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-24 06:14:37,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:14:37,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883665602] [2023-12-24 06:14:37,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883665602] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 06:14:37,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 06:14:37,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2023-12-24 06:14:37,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617082835] [2023-12-24 06:14:37,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:14:37,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 06:14:37,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:14:37,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 06:14:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-12-24 06:14:37,529 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-24 06:14:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:14:37,867 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2023-12-24 06:14:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 06:14:37,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 72 [2023-12-24 06:14:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:14:37,868 INFO L225 Difference]: With dead ends: 34 [2023-12-24 06:14:37,868 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 06:14:37,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2023-12-24 06:14:37,870 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:14:37,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 113 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 06:14:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 06:14:37,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 06:14:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 06:14:37,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 06:14:37,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2023-12-24 06:14:37,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:14:37,871 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 06:14:37,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-24 06:14:37,871 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 06:14:37,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 06:14:37,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 06:14:37,895 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 [2023-12-24 06:14:38,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 06:14:38,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 06:14:38,160 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-12-24 06:14:38,160 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 06:14:38,160 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 06:14:38,160 INFO L902 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: true [2023-12-24 06:14:38,160 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 06:14:38,160 INFO L902 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: true [2023-12-24 06:14:38,160 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2023-12-24 06:14:38,161 INFO L902 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true [2023-12-24 06:14:38,161 INFO L902 garLoopResultBuilder]: At program point L57-1(line 57) the Hoare annotation is: true [2023-12-24 06:14:38,161 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 06:14:38,161 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-12-24 06:14:38,161 INFO L902 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: true [2023-12-24 06:14:38,161 INFO L902 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: true [2023-12-24 06:14:38,161 INFO L895 garLoopResultBuilder]: At program point L70-2(lines 70 76) the Hoare annotation is: (let ((.cse5 ((_ zero_extend 24) ~var_1_1~0))) (let ((.cse4 (= .cse5 (_ bv0 32))) (.cse2 (= ~var_1_4~0 (_ bv0 8))) (.cse1 (= ~var_1_5~0 (_ bv0 8))) (.cse3 (= ~var_1_3~0 (_ bv0 8))) (.cse0 (= ~var_1_2~0 (_ bv0 8)))) (and (or .cse0 (and (not .cse1) .cse2) .cse3 (not .cse4)) (or .cse4 (and (or (not .cse2) .cse1) (not .cse3) (not .cse0) (= .cse5 (_ bv1 32))))))) [2023-12-24 06:14:38,161 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 76) no Hoare annotation was computed. [2023-12-24 06:14:38,161 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 39) no Hoare annotation was computed. [2023-12-24 06:14:38,161 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 06:14:38,162 INFO L899 garLoopResultBuilder]: For program point L58(lines 40 59) no Hoare annotation was computed. [2023-12-24 06:14:38,162 INFO L902 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: true [2023-12-24 06:14:38,162 INFO L902 garLoopResultBuilder]: At program point L54-1(line 54) the Hoare annotation is: true [2023-12-24 06:14:38,162 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-12-24 06:14:38,162 INFO L902 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: true [2023-12-24 06:14:38,162 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 06:14:38,162 INFO L902 garLoopResultBuilder]: At program point L42-1(line 42) the Hoare annotation is: true [2023-12-24 06:14:38,162 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-12-24 06:14:38,162 INFO L902 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: true [2023-12-24 06:14:38,162 INFO L902 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: true [2023-12-24 06:14:38,162 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-12-24 06:14:38,163 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 06:14:38,163 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 06:14:38,163 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 06:14:38,163 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 06:14:38,165 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-24 06:14:38,167 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 06:14:38,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 06:14:38 BoogieIcfgContainer [2023-12-24 06:14:38,175 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 06:14:38,176 INFO L158 Benchmark]: Toolchain (without parser) took 4870.50ms. Allocated memory was 294.6MB in the beginning and 374.3MB in the end (delta: 79.7MB). Free memory was 242.9MB in the beginning and 137.8MB in the end (delta: 105.1MB). Peak memory consumption was 184.0MB. Max. memory is 8.0GB. [2023-12-24 06:14:38,176 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 237.0MB. Free memory was 188.7MB in the beginning and 188.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 06:14:38,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.38ms. Allocated memory is still 294.6MB. Free memory was 242.7MB in the beginning and 230.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-24 06:14:38,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.32ms. Allocated memory is still 294.6MB. Free memory was 230.6MB in the beginning and 228.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 06:14:38,176 INFO L158 Benchmark]: Boogie Preprocessor took 26.39ms. Allocated memory is still 294.6MB. Free memory was 228.7MB in the beginning and 226.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 06:14:38,177 INFO L158 Benchmark]: RCFGBuilder took 254.40ms. Allocated memory is still 294.6MB. Free memory was 226.4MB in the beginning and 212.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-24 06:14:38,177 INFO L158 Benchmark]: TraceAbstraction took 4323.80ms. Allocated memory was 294.6MB in the beginning and 374.3MB in the end (delta: 79.7MB). Free memory was 211.5MB in the beginning and 137.8MB in the end (delta: 73.6MB). Peak memory consumption was 152.5MB. Max. memory is 8.0GB. [2023-12-24 06:14:38,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 237.0MB. Free memory was 188.7MB in the beginning and 188.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.38ms. Allocated memory is still 294.6MB. Free memory was 242.7MB in the beginning and 230.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.32ms. Allocated memory is still 294.6MB. Free memory was 230.6MB in the beginning and 228.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.39ms. Allocated memory is still 294.6MB. Free memory was 228.7MB in the beginning and 226.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 254.40ms. Allocated memory is still 294.6MB. Free memory was 226.4MB in the beginning and 212.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4323.80ms. Allocated memory was 294.6MB in the beginning and 374.3MB in the end (delta: 79.7MB). Free memory was 211.5MB in the beginning and 137.8MB in the end (delta: 73.6MB). Peak memory consumption was 152.5MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 157 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 113 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 359 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 37 PreInvPairs, 51 NumberOfFragments, 60 HoareAnnotationTreeSize, 37 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FormulaSimplificationsInter, 297 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 355 ConstructedInterpolants, 2 QuantifiedInterpolants, 1810 SizeOfPredicates, 37 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 1260/1320 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((var_1_2 == 0) || (!((var_1_5 == 0)) && (var_1_4 == 0))) || (var_1_3 == 0)) || !((var_1_1 == 0))) && ((var_1_1 == 0) || ((((!((var_1_4 == 0)) || (var_1_5 == 0)) && !((var_1_3 == 0))) && !((var_1_2 == 0))) && (var_1_1 == 1)))) RESULT: Ultimate proved your program to be correct! [2023-12-24 06:14:38,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...