/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/eca-rers2012/Problem19_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 17:49:44,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 17:49:45,011 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 17:49:45,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 17:49:45,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 17:49:45,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 17:49:45,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 17:49:45,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 17:49:45,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 17:49:45,042 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 17:49:45,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 17:49:45,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 17:49:45,043 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 17:49:45,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 17:49:45,043 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 17:49:45,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 17:49:45,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 17:49:45,044 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 17:49:45,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 17:49:45,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 17:49:45,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 17:49:45,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 17:49:45,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 17:49:45,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 17:49:45,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 17:49:45,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 17:49:45,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 17:49:45,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:49:45,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 17:49:45,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 17:49:45,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 17:49:45,048 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 17:49:45,048 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 17:49:45,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 17:49:45,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 17:49:45,049 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 17:49:45,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 17:49:45,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 17:49:45,049 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 17:49:45,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 17:49:45,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 17:49:45,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 17:49:45,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 17:49:45,259 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 17:49:45,260 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 17:49:45,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label48.c [2023-12-22 17:49:46,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 17:49:46,761 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 17:49:46,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label48.c [2023-12-22 17:49:46,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d8ac1237/0b04fe95848b48068084f76d15fa785c/FLAGc14954fbd [2023-12-22 17:49:46,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d8ac1237/0b04fe95848b48068084f76d15fa785c [2023-12-22 17:49:46,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 17:49:46,815 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 17:49:46,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 17:49:46,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 17:49:46,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 17:49:46,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:49:46" (1/1) ... [2023-12-22 17:49:46,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4255e847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:46, skipping insertion in model container [2023-12-22 17:49:46,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:49:46" (1/1) ... [2023-12-22 17:49:46,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 17:49:47,233 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label48.c[8401,8414] [2023-12-22 17:49:48,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:49:48,308 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 17:49:48,328 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label48.c[8401,8414] [2023-12-22 17:49:48,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:49:48,995 INFO L206 MainTranslator]: Completed translation [2023-12-22 17:49:48,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48 WrapperNode [2023-12-22 17:49:48,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 17:49:48,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 17:49:48,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 17:49:48,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 17:49:49,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,289 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9424 [2023-12-22 17:49:49,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 17:49:49,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 17:49:49,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 17:49:49,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 17:49:49,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,431 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]. [2023-12-22 17:49:49,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 17:49:49,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 17:49:49,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 17:49:49,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 17:49:49,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (1/1) ... [2023-12-22 17:49:49,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:49:49,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 17:49:49,918 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) [2023-12-22 17:49:49,983 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 [2023-12-22 17:49:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 17:49:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 17:49:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 17:49:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 17:49:50,100 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 17:49:50,102 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 17:50:54,699 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 17:50:54,762 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 17:50:54,762 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 17:50:54,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:50:54 BoogieIcfgContainer [2023-12-22 17:50:54,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 17:50:54,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 17:50:54,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 17:50:54,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 17:50:54,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:49:46" (1/3) ... [2023-12-22 17:50:54,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fff73b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:50:54, skipping insertion in model container [2023-12-22 17:50:54,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:49:48" (2/3) ... [2023-12-22 17:50:54,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fff73b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:50:54, skipping insertion in model container [2023-12-22 17:50:54,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:50:54" (3/3) ... [2023-12-22 17:50:54,769 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label48.c [2023-12-22 17:50:54,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 17:50:54,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 17:50:54,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 17:50:54,863 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;@1762ee43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 17:50:54,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 17:50:54,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 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) [2023-12-22 17:50:54,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 17:50:54,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:50:54,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:50:54,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:50:54,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:50:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1802008972, now seen corresponding path program 1 times [2023-12-22 17:50:54,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:50:54,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405105239] [2023-12-22 17:50:54,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:50:54,898 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 [2023-12-22 17:50:54,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:50:54,900 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) [2023-12-22 17:50:54,904 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 [2023-12-22 17:50:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:50:54,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 17:50:54,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:50:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:50:54,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:50:54,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:50:54,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405105239] [2023-12-22 17:50:54,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405105239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:50:54,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:50:54,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:50:54,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137201228] [2023-12-22 17:50:54,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:50:54,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 17:50:54,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:50:55,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 17:50:55,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:50:55,005 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 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) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-22 17:50:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:50:55,196 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-22 17:50:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 17:50:55,200 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) Word has length 64 [2023-12-22 17:50:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:50:55,220 INFO L225 Difference]: With dead ends: 3371 [2023-12-22 17:50:55,221 INFO L226 Difference]: Without dead ends: 1684 [2023-12-22 17:50:55,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:50:55,229 INFO L413 NwaCegarLoop]: 3138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 17:50:55,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 17:50:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-22 17:50:55,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-22 17:50:55,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 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) [2023-12-22 17:50:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-22 17:50:55,318 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 64 [2023-12-22 17:50:55,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:50:55,319 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-22 17:50:55,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-22 17:50:55,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-22 17:50:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 17:50:55,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:50:55,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:50:55,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 17:50:55,524 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 [2023-12-22 17:50:55,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:50:55,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:50:55,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1194989488, now seen corresponding path program 1 times [2023-12-22 17:50:55,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:50:55,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878022080] [2023-12-22 17:50:55,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:50:55,526 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 [2023-12-22 17:50:55,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:50:55,546 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) [2023-12-22 17:50:55,567 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 [2023-12-22 17:50:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:50:55,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:50:55,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:50:55,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:50:55,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:50:55,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:50:55,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878022080] [2023-12-22 17:50:55,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878022080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:50:55,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:50:55,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:50:55,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793709049] [2023-12-22 17:50:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:50:55,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:50:55,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:50:55,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:50:55,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:50:55,902 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-22 17:52:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:52:38,831 INFO L93 Difference]: Finished difference Result 4845 states and 9098 transitions. [2023-12-22 17:52:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:52:38,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) Word has length 64 [2023-12-22 17:52:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:52:38,843 INFO L225 Difference]: With dead ends: 4845 [2023-12-22 17:52:38,843 INFO L226 Difference]: Without dead ends: 3162 [2023-12-22 17:52:38,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:52:38,847 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 1466 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4611 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 4611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.5s IncrementalHoareTripleChecker+Time [2023-12-22 17:52:38,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 1468 Invalid, 5674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1063 Valid, 4611 Invalid, 0 Unknown, 0 Unchecked, 102.5s Time] [2023-12-22 17:52:38,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2023-12-22 17:52:38,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3122. [2023-12-22 17:52:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 1.6270426145466197) internal successors, (5078), 3121 states have internal predecessors, (5078), 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) [2023-12-22 17:52:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5078 transitions. [2023-12-22 17:52:38,907 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5078 transitions. Word has length 64 [2023-12-22 17:52:38,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:52:38,908 INFO L495 AbstractCegarLoop]: Abstraction has 3122 states and 5078 transitions. [2023-12-22 17:52:38,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-22 17:52:38,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5078 transitions. [2023-12-22 17:52:38,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 17:52:38,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:52:38,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:52:38,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 17:52:39,112 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 [2023-12-22 17:52:39,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:52:39,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:52:39,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1899140024, now seen corresponding path program 1 times [2023-12-22 17:52:39,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:52:39,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577700202] [2023-12-22 17:52:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:52:39,120 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 [2023-12-22 17:52:39,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:52:39,124 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) [2023-12-22 17:52:39,137 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 [2023-12-22 17:52:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:52:39,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:52:39,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:52:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:52:39,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:52:39,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:52:39,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577700202] [2023-12-22 17:52:39,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577700202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:52:39,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:52:39,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:52:39,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150907422] [2023-12-22 17:52:39,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:52:39,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:52:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:52:39,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:52:39,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:52:39,779 INFO L87 Difference]: Start difference. First operand 3122 states and 5078 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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) [2023-12-22 17:54:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:54:25,763 INFO L93 Difference]: Finished difference Result 9036 states and 14796 transitions. [2023-12-22 17:54:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:54:25,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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) Word has length 135 [2023-12-22 17:54:25,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:54:25,788 INFO L225 Difference]: With dead ends: 9036 [2023-12-22 17:54:25,788 INFO L226 Difference]: Without dead ends: 5915 [2023-12-22 17:54:25,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:54:25,795 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 1514 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 4741 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 5651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.6s IncrementalHoareTripleChecker+Time [2023-12-22 17:54:25,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1540 Invalid, 5651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [910 Valid, 4741 Invalid, 0 Unknown, 0 Unchecked, 105.6s Time] [2023-12-22 17:54:25,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2023-12-22 17:54:25,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5885. [2023-12-22 17:54:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5885 states, 5884 states have (on average 1.424201223657376) internal successors, (8380), 5884 states have internal predecessors, (8380), 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) [2023-12-22 17:54:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5885 states to 5885 states and 8380 transitions. [2023-12-22 17:54:25,879 INFO L78 Accepts]: Start accepts. Automaton has 5885 states and 8380 transitions. Word has length 135 [2023-12-22 17:54:25,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:54:25,880 INFO L495 AbstractCegarLoop]: Abstraction has 5885 states and 8380 transitions. [2023-12-22 17:54:25,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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) [2023-12-22 17:54:25,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5885 states and 8380 transitions. [2023-12-22 17:54:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-22 17:54:25,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:54:25,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:54:25,890 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 (4)] Ended with exit code 0 [2023-12-22 17:54:26,090 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 [2023-12-22 17:54:26,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:54:26,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:54:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1983555769, now seen corresponding path program 1 times [2023-12-22 17:54:26,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:54:26,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850867904] [2023-12-22 17:54:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:54:26,093 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 [2023-12-22 17:54:26,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:54:26,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:54:26,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 17:54:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:54:26,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:54:26,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:54:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:54:26,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:54:26,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:54:26,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850867904] [2023-12-22 17:54:26,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850867904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:54:26,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:54:26,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:54:26,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172097879] [2023-12-22 17:54:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:54:26,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:54:26,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:54:26,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:54:26,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:54:26,935 INFO L87 Difference]: Start difference. First operand 5885 states and 8380 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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) [2023-12-22 17:56:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:56:17,260 INFO L93 Difference]: Finished difference Result 17446 states and 24868 transitions. [2023-12-22 17:56:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:56:17,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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) Word has length 161 [2023-12-22 17:56:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:56:17,311 INFO L225 Difference]: With dead ends: 17446 [2023-12-22 17:56:17,311 INFO L226 Difference]: Without dead ends: 11562 [2023-12-22 17:56:17,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:56:17,323 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1746 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 4710 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 5653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 4710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:56:17,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 1805 Invalid, 5653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [943 Valid, 4710 Invalid, 0 Unknown, 0 Unchecked, 109.9s Time] [2023-12-22 17:56:17,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11562 states. [2023-12-22 17:56:17,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11562 to 11545. [2023-12-22 17:56:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11545 states, 11544 states have (on average 1.2802321552321552) internal successors, (14779), 11544 states have internal predecessors, (14779), 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) [2023-12-22 17:56:17,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11545 states to 11545 states and 14779 transitions. [2023-12-22 17:56:17,487 INFO L78 Accepts]: Start accepts. Automaton has 11545 states and 14779 transitions. Word has length 161 [2023-12-22 17:56:17,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:56:17,487 INFO L495 AbstractCegarLoop]: Abstraction has 11545 states and 14779 transitions. [2023-12-22 17:56:17,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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) [2023-12-22 17:56:17,488 INFO L276 IsEmpty]: Start isEmpty. Operand 11545 states and 14779 transitions. [2023-12-22 17:56:17,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-22 17:56:17,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:56:17,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:56:17,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 17:56:17,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:56:17,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:56:17,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:56:17,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1263210971, now seen corresponding path program 1 times [2023-12-22 17:56:17,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:56:17,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138093700] [2023-12-22 17:56:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:56:17,700 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 [2023-12-22 17:56:17,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:56:17,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:56:17,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 17:56:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:56:17,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:56:17,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:56:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:56:18,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:56:18,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:56:18,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138093700] [2023-12-22 17:56:18,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138093700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:56:18,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:56:18,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:56:18,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245721045] [2023-12-22 17:56:18,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:56:18,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:56:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:56:18,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:56:18,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:56:18,563 INFO L87 Difference]: Start difference. First operand 11545 states and 14779 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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) [2023-12-22 17:58:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:58:12,780 INFO L93 Difference]: Finished difference Result 34048 states and 43521 transitions. [2023-12-22 17:58:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:58:12,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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) Word has length 169 [2023-12-22 17:58:12,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:58:12,851 INFO L225 Difference]: With dead ends: 34048 [2023-12-22 17:58:12,852 INFO L226 Difference]: Without dead ends: 22504 [2023-12-22 17:58:12,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:58:12,870 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1356 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 4628 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 5767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1139 IncrementalHoareTripleChecker+Valid, 4628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.7s IncrementalHoareTripleChecker+Time [2023-12-22 17:58:12,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1879 Invalid, 5767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1139 Valid, 4628 Invalid, 0 Unknown, 0 Unchecked, 113.7s Time] [2023-12-22 17:58:12,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22504 states. [2023-12-22 17:58:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22504 to 22499. [2023-12-22 17:58:13,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22498 states have (on average 1.1801048982131745) internal successors, (26550), 22498 states have internal predecessors, (26550), 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) [2023-12-22 17:58:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 26550 transitions. [2023-12-22 17:58:13,147 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 26550 transitions. Word has length 169 [2023-12-22 17:58:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:58:13,148 INFO L495 AbstractCegarLoop]: Abstraction has 22499 states and 26550 transitions. [2023-12-22 17:58:13,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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) [2023-12-22 17:58:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 26550 transitions. [2023-12-22 17:58:13,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 17:58:13,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:58:13,157 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:58:13,160 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 (6)] Ended with exit code 0 [2023-12-22 17:58:13,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2023-12-22 17:58:13,360 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:58:13,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:58:13,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1741656374, now seen corresponding path program 1 times [2023-12-22 17:58:13,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:58:13,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820064077] [2023-12-22 17:58:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:58:13,363 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 [2023-12-22 17:58:13,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:58:13,365 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-22 17:58:13,365 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 (7)] Waiting until timeout for monitored process [2023-12-22 17:58:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:58:13,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:58:13,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:58:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-22 17:58:14,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:58:14,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:58:14,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820064077] [2023-12-22 17:58:14,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820064077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:58:14,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:58:14,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:58:14,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651195833] [2023-12-22 17:58:14,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:58:14,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:58:14,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:58:14,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:58:14,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:58:14,340 INFO L87 Difference]: Start difference. First operand 22499 states and 26550 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 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) [2023-12-22 18:00:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:00:24,350 INFO L93 Difference]: Finished difference Result 47682 states and 57969 transitions. [2023-12-22 18:00:24,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:00:24,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 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) Word has length 246 [2023-12-22 18:00:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:00:24,468 INFO L225 Difference]: With dead ends: 47682 [2023-12-22 18:00:24,468 INFO L226 Difference]: Without dead ends: 26549 [2023-12-22 18:00:24,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:00:24,519 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2469 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5282 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 5547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 5282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129.5s IncrementalHoareTripleChecker+Time [2023-12-22 18:00:24,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 984 Invalid, 5547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 5282 Invalid, 0 Unknown, 0 Unchecked, 129.5s Time] [2023-12-22 18:00:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26549 states. [2023-12-22 18:00:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26549 to 26546. [2023-12-22 18:00:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26546 states, 26545 states have (on average 1.1935204369937842) internal successors, (31682), 26545 states have internal predecessors, (31682), 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) [2023-12-22 18:00:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26546 states to 26546 states and 31682 transitions. [2023-12-22 18:00:25,146 INFO L78 Accepts]: Start accepts. Automaton has 26546 states and 31682 transitions. Word has length 246 [2023-12-22 18:00:25,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:00:25,146 INFO L495 AbstractCegarLoop]: Abstraction has 26546 states and 31682 transitions. [2023-12-22 18:00:25,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 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) [2023-12-22 18:00:25,146 INFO L276 IsEmpty]: Start isEmpty. Operand 26546 states and 31682 transitions. [2023-12-22 18:00:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-22 18:00:25,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:00:25,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:00:25,169 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 (7)] Forceful destruction successful, exit code 0 [2023-12-22 18:00:25,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-22 18:00:25,355 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:00:25,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:00:25,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1783310780, now seen corresponding path program 1 times [2023-12-22 18:00:25,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:00:25,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429672635] [2023-12-22 18:00:25,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:00:25,357 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 [2023-12-22 18:00:25,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:00:25,359 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-22 18:00:25,397 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 (8)] Waiting until timeout for monitored process [2023-12-22 18:00:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:00:25,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 18:00:25,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:00:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:00:28,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:00:28,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:00:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429672635] [2023-12-22 18:00:28,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429672635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:00:28,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:00:28,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:00:28,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627685168] [2023-12-22 18:00:28,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:00:28,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:00:28,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:00:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:00:28,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:00:28,901 INFO L87 Difference]: Start difference. First operand 26546 states and 31682 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 2 states have internal predecessors, (271), 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) [2023-12-22 18:02:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:02:02,868 INFO L93 Difference]: Finished difference Result 44887 states and 54555 transitions. [2023-12-22 18:02:02,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:02:02,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 2 states have internal predecessors, (271), 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) Word has length 271 [2023-12-22 18:02:02,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:02:02,918 INFO L225 Difference]: With dead ends: 44887 [2023-12-22 18:02:02,918 INFO L226 Difference]: Without dead ends: 27911 [2023-12-22 18:02:02,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:02:02,938 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1161 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.5s IncrementalHoareTripleChecker+Time [2023-12-22 18:02:02,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1945 Invalid, 4343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4338 Invalid, 0 Unknown, 0 Unchecked, 93.5s Time] [2023-12-22 18:02:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27911 states. [2023-12-22 18:02:03,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27911 to 27911. [2023-12-22 18:02:03,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27911 states, 27910 states have (on average 1.184270870655679) internal successors, (33053), 27910 states have internal predecessors, (33053), 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) [2023-12-22 18:02:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27911 states to 27911 states and 33053 transitions. [2023-12-22 18:02:03,208 INFO L78 Accepts]: Start accepts. Automaton has 27911 states and 33053 transitions. Word has length 271 [2023-12-22 18:02:03,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:02:03,208 INFO L495 AbstractCegarLoop]: Abstraction has 27911 states and 33053 transitions. [2023-12-22 18:02:03,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 2 states have internal predecessors, (271), 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) [2023-12-22 18:02:03,208 INFO L276 IsEmpty]: Start isEmpty. Operand 27911 states and 33053 transitions. [2023-12-22 18:02:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-22 18:02:03,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:02:03,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:02:03,242 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 (8)] Ended with exit code 0 [2023-12-22 18:02:03,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2023-12-22 18:02:03,419 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:02:03,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:02:03,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2142279190, now seen corresponding path program 1 times [2023-12-22 18:02:03,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:02:03,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243177016] [2023-12-22 18:02:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:02:03,421 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 [2023-12-22 18:02:03,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:02:03,423 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-22 18:02:03,423 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 (9)] Waiting until timeout for monitored process [2023-12-22 18:02:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:02:03,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 18:02:03,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:02:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-22 18:02:11,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:02:11,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:02:11,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243177016] [2023-12-22 18:02:11,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243177016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:02:11,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:02:11,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 18:02:11,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021030047] [2023-12-22 18:02:11,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:02:11,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 18:02:11,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:02:11,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 18:02:11,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 18:02:11,436 INFO L87 Difference]: Start difference. First operand 27911 states and 33053 transitions. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 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) [2023-12-22 18:03:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:03:53,623 INFO L93 Difference]: Finished difference Result 44918 states and 54574 transitions. [2023-12-22 18:03:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 18:03:53,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 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) Word has length 459 [2023-12-22 18:03:53,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:03:53,660 INFO L225 Difference]: With dead ends: 44918 [2023-12-22 18:03:53,660 INFO L226 Difference]: Without dead ends: 19707 [2023-12-22 18:03:53,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 18:03:53,672 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1151 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5714 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 5722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.6s IncrementalHoareTripleChecker+Time [2023-12-22 18:03:53,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1949 Invalid, 5722 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 5714 Invalid, 0 Unknown, 0 Unchecked, 101.6s Time] [2023-12-22 18:03:53,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19707 states. [2023-12-22 18:03:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19707 to 19707. [2023-12-22 18:03:53,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19707 states, 19706 states have (on average 1.229371764944687) internal successors, (24226), 19706 states have internal predecessors, (24226), 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) [2023-12-22 18:03:53,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19707 states to 19707 states and 24226 transitions. [2023-12-22 18:03:53,895 INFO L78 Accepts]: Start accepts. Automaton has 19707 states and 24226 transitions. Word has length 459 [2023-12-22 18:03:53,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:03:53,896 INFO L495 AbstractCegarLoop]: Abstraction has 19707 states and 24226 transitions. [2023-12-22 18:03:53,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 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) [2023-12-22 18:03:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 19707 states and 24226 transitions. [2023-12-22 18:03:53,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2023-12-22 18:03:53,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:03:53,905 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:03:53,924 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 (9)] Ended with exit code 0 [2023-12-22 18:03:54,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-22 18:03:54,111 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:03:54,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:03:54,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1313695844, now seen corresponding path program 1 times [2023-12-22 18:03:54,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:03:54,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344174186] [2023-12-22 18:03:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:03:54,117 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 [2023-12-22 18:03:54,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:03:54,118 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-22 18:03:54,126 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 (10)] Waiting until timeout for monitored process [2023-12-22 18:03:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:03:54,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 18:03:54,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:03:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 125 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:03:59,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 18:04:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:04:00,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:04:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344174186] [2023-12-22 18:04:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344174186] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 18:04:00,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 18:04:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 18:04:00,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182351946] [2023-12-22 18:04:00,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:04:00,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:04:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:04:00,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:04:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 18:04:00,959 INFO L87 Difference]: Start difference. First operand 19707 states and 24226 transitions. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 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) [2023-12-22 18:04:12,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 18:04:15,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 18:04:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:04:21,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1308 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 18:04:21,750 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 876 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2023-12-22 18:04:21,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 83 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2023-12-22 18:04:21,751 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 18:04:21,760 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 (10)] Ended with exit code 0 [2023-12-22 18:04:21,763 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 18:04:21,763 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 18:04:21,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-22 18:04:21,953 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (19707states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (4979 states constructed, input type IntersectNwa). [2023-12-22 18:04:21,957 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:04:21,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 18:04:21,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:04:21 BoogieIcfgContainer [2023-12-22 18:04:21,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 18:04:21,960 INFO L158 Benchmark]: Toolchain (without parser) took 875145.26ms. Allocated memory was 296.7MB in the beginning and 1.1GB in the end (delta: 753.9MB). Free memory was 217.7MB in the beginning and 710.9MB in the end (delta: -493.2MB). Peak memory consumption was 782.9MB. Max. memory is 8.0GB. [2023-12-22 18:04:21,961 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 211.8MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 18:04:21,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2179.48ms. Allocated memory was 296.7MB in the beginning and 525.3MB in the end (delta: 228.6MB). Free memory was 217.2MB in the beginning and 390.4MB in the end (delta: -173.2MB). Peak memory consumption was 119.3MB. Max. memory is 8.0GB. [2023-12-22 18:04:21,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 291.30ms. Allocated memory is still 525.3MB. Free memory was 390.4MB in the beginning and 321.2MB in the end (delta: 69.2MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-22 18:04:21,961 INFO L158 Benchmark]: Boogie Preprocessor took 587.16ms. Allocated memory is still 525.3MB. Free memory was 321.2MB in the beginning and 359.4MB in the end (delta: -38.3MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. [2023-12-22 18:04:21,961 INFO L158 Benchmark]: RCFGBuilder took 64885.33ms. Allocated memory was 525.3MB in the beginning and 1.1GB in the end (delta: 525.3MB). Free memory was 359.4MB in the beginning and 597.5MB in the end (delta: -238.0MB). Peak memory consumption was 310.9MB. Max. memory is 8.0GB. [2023-12-22 18:04:21,962 INFO L158 Benchmark]: TraceAbstraction took 807195.48ms. Allocated memory is still 1.1GB. Free memory was 596.9MB in the beginning and 710.9MB in the end (delta: -113.9MB). Peak memory consumption was 406.7MB. Max. memory is 8.0GB. [2023-12-22 18:04:21,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 211.8MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2179.48ms. Allocated memory was 296.7MB in the beginning and 525.3MB in the end (delta: 228.6MB). Free memory was 217.2MB in the beginning and 390.4MB in the end (delta: -173.2MB). Peak memory consumption was 119.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 291.30ms. Allocated memory is still 525.3MB. Free memory was 390.4MB in the beginning and 321.2MB in the end (delta: 69.2MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 587.16ms. Allocated memory is still 525.3MB. Free memory was 321.2MB in the beginning and 359.4MB in the end (delta: -38.3MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. * RCFGBuilder took 64885.33ms. Allocated memory was 525.3MB in the beginning and 1.1GB in the end (delta: 525.3MB). Free memory was 359.4MB in the beginning and 597.5MB in the end (delta: -238.0MB). Peak memory consumption was 310.9MB. Max. memory is 8.0GB. * TraceAbstraction took 807195.48ms. Allocated memory is still 1.1GB. Free memory was 596.9MB in the beginning and 710.9MB in the end (delta: -113.9MB). Peak memory consumption was 406.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 221]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 221). Cancelled while NwaCegarLoop was constructing difference of abstraction (19707states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (4979 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 807.1s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 781.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11739 SdHoareTripleChecker+Valid, 777.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11739 mSDsluCounter, 14791 SdHoareTripleChecker+Invalid, 645.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1493 mSDsCounter, 4438 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35226 IncrementalHoareTripleChecker+Invalid, 39664 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4438 mSolverCounterUnsat, 13298 mSDtfsCounter, 35226 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2869 GetRequests, 2858 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27911occurred in iteration=7, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 95 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 21.1s InterpolantComputationTime, 2224 NumberOfCodeBlocks, 2224 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2869 ConstructedInterpolants, 0 QuantifiedInterpolants, 12692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2608 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1076/1179 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown