/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 17:18:37,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 17:18:37,248 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 17:18:37,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 17:18:37,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 17:18:37,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 17:18:37,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 17:18:37,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 17:18:37,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 17:18:37,296 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 17:18:37,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 17:18:37,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 17:18:37,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 17:18:37,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 17:18:37,299 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 17:18:37,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 17:18:37,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 17:18:37,300 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 17:18:37,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 17:18:37,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 17:18:37,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 17:18:37,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 17:18:37,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 17:18:37,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 17:18:37,302 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 17:18:37,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 17:18:37,302 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 17:18:37,302 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 17:18:37,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 17:18:37,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 17:18:37,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 17:18:37,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 17:18:37,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 17:18:37,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 17:18:37,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:18:37,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 17:18:37,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 17:18:37,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 17:18:37,305 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 17:18:37,305 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 17:18:37,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 17:18:37,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 17:18:37,306 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 17:18:37,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 17:18:37,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 17:18:37,306 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 17:18:37,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 17:18:37,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 17:18:37,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 17:18:37,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 17:18:37,572 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 17:18:37,572 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 17:18:37,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label17.c [2023-12-22 17:18:38,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 17:18:39,390 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 17:18:39,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label17.c [2023-12-22 17:18:39,456 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92e84975c/4e2bb59ee418487e867249a30055bcae/FLAG4af733a0e [2023-12-22 17:18:39,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92e84975c/4e2bb59ee418487e867249a30055bcae [2023-12-22 17:18:39,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 17:18:39,475 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 17:18:39,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 17:18:39,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 17:18:39,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 17:18:39,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:18:39" (1/1) ... [2023-12-22 17:18:39,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609d485d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:39, skipping insertion in model container [2023-12-22 17:18:39,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:18:39" (1/1) ... [2023-12-22 17:18:39,675 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 17:18:39,907 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_label17.c[1799,1812] [2023-12-22 17:18:41,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:18:41,197 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 17:18:41,212 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_label17.c[1799,1812] [2023-12-22 17:18:41,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:18:42,022 INFO L206 MainTranslator]: Completed translation [2023-12-22 17:18:42,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42 WrapperNode [2023-12-22 17:18:42,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 17:18:42,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 17:18:42,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 17:18:42,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 17:18:42,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,435 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9424 [2023-12-22 17:18:42,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 17:18:42,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 17:18:42,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 17:18:42,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 17:18:42,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,626 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 17:18:42,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 17:18:42,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 17:18:42,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 17:18:42,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 17:18:42,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (1/1) ... [2023-12-22 17:18:42,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:18:42,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 17:18:42,989 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 17:18:43,007 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 17:18:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 17:18:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 17:18:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 17:18:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 17:18:43,111 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 17:18:43,113 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 17:19:44,062 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 17:19:44,154 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 17:19:44,154 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 17:19:44,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:19:44 BoogieIcfgContainer [2023-12-22 17:19:44,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 17:19:44,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 17:19:44,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 17:19:44,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 17:19:44,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:18:39" (1/3) ... [2023-12-22 17:19:44,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cea69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:19:44, skipping insertion in model container [2023-12-22 17:19:44,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:18:42" (2/3) ... [2023-12-22 17:19:44,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cea69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:19:44, skipping insertion in model container [2023-12-22 17:19:44,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:19:44" (3/3) ... [2023-12-22 17:19:44,164 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label17.c [2023-12-22 17:19:44,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 17:19:44,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 17:19:44,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 17:19:44,260 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;@707f6e0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 17:19:44,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 17:19:44,272 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 17:19:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-22 17:19:44,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:19:44,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:19:44,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:19:44,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:19:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1826423932, now seen corresponding path program 1 times [2023-12-22 17:19:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:19:44,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602419997] [2023-12-22 17:19:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:19:44,302 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 17:19:44,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:19:44,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:19:44,328 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 17:19:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:19:44,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 17:19:44,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:19:44,412 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 17:19:44,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:19:44,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:19:44,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602419997] [2023-12-22 17:19:44,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602419997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:19:44,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:19:44,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:19:44,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149625186] [2023-12-22 17:19:44,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:19:44,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 17:19:44,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:19:44,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 17:19:44,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:19:44,453 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 17:19:44,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:19:44,584 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-22 17:19:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 17:19:44,587 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-12-22 17:19:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:19:44,609 INFO L225 Difference]: With dead ends: 3371 [2023-12-22 17:19:44,609 INFO L226 Difference]: Without dead ends: 1684 [2023-12-22 17:19:44,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 17:19:44,620 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 17:19:44,621 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 17:19:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-22 17:19:44,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-22 17:19:44,715 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 17:19:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-22 17:19:44,720 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 9 [2023-12-22 17:19:44,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:19:44,721 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-22 17:19:44,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 17:19:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-22 17:19:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-22 17:19:44,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:19:44,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:19:44,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 17:19:44,929 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 17:19:44,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:19:44,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:19:44,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1578169763, now seen corresponding path program 1 times [2023-12-22 17:19:44,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:19:44,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721496696] [2023-12-22 17:19:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:19:44,932 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 17:19:44,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:19:44,933 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 17:19:44,935 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 17:19:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:19:44,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:19:44,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:19:45,029 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 17:19:45,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:19:45,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:19:45,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721496696] [2023-12-22 17:19:45,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721496696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:19:45,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:19:45,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:19:45,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103390899] [2023-12-22 17:19:45,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:19:45,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:19:45,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:19:45,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:19:45,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:19:45,032 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 17:21:09,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:21:09,293 INFO L93 Difference]: Finished difference Result 4845 states and 9098 transitions. [2023-12-22 17:21:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:21:09,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-12-22 17:21:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:21:09,307 INFO L225 Difference]: With dead ends: 4845 [2023-12-22 17:21:09,307 INFO L226 Difference]: Without dead ends: 3162 [2023-12-22 17:21:09,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 17:21:09,311 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 1521 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4611 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 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, 83.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:21:09,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1468 Invalid, 5674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1063 Valid, 4611 Invalid, 0 Unknown, 0 Unchecked, 83.9s Time] [2023-12-22 17:21:09,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2023-12-22 17:21:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3122. [2023-12-22 17:21:09,362 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 17:21:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5078 transitions. [2023-12-22 17:21:09,370 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5078 transitions. Word has length 9 [2023-12-22 17:21:09,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:21:09,371 INFO L495 AbstractCegarLoop]: Abstraction has 3122 states and 5078 transitions. [2023-12-22 17:21:09,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 17:21:09,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5078 transitions. [2023-12-22 17:21:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-22 17:21:09,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:21:09,373 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 17:21:09,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 17:21:09,576 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 17:21:09,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:21:09,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:21:09,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1126851332, now seen corresponding path program 1 times [2023-12-22 17:21:09,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:21:09,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438314782] [2023-12-22 17:21:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:21:09,579 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 17:21:09,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:21:09,580 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 17:21:09,585 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 17:21:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:21:09,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:21:09,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:21:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:21:10,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:21:10,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:21:10,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438314782] [2023-12-22 17:21:10,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438314782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:21:10,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:21:10,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:21:10,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51352576] [2023-12-22 17:21:10,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:21:10,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:21:10,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:21:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:21:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:21:10,078 INFO L87 Difference]: Start difference. First operand 3122 states and 5078 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 17:22:38,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:22:38,949 INFO L93 Difference]: Finished difference Result 9036 states and 14796 transitions. [2023-12-22 17:22:38,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:22:38,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-12-22 17:22:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:22:38,976 INFO L225 Difference]: With dead ends: 9036 [2023-12-22 17:22:38,976 INFO L226 Difference]: Without dead ends: 5915 [2023-12-22 17:22:38,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 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 17:22:38,983 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 1514 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 4741 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.0s 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, 88.5s IncrementalHoareTripleChecker+Time [2023-12-22 17:22:38,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1540 Invalid, 5651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [910 Valid, 4741 Invalid, 0 Unknown, 0 Unchecked, 88.5s Time] [2023-12-22 17:22:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2023-12-22 17:22:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5885. [2023-12-22 17:22:39,083 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 17:22:39,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5885 states to 5885 states and 8380 transitions. [2023-12-22 17:22:39,096 INFO L78 Accepts]: Start accepts. Automaton has 5885 states and 8380 transitions. Word has length 80 [2023-12-22 17:22:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:22:39,097 INFO L495 AbstractCegarLoop]: Abstraction has 5885 states and 8380 transitions. [2023-12-22 17:22:39,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 17:22:39,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5885 states and 8380 transitions. [2023-12-22 17:22:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-22 17:22:39,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:22:39,105 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 17:22:39,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 17:22:39,310 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 17:22:39,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:22:39,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:22:39,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1466059533, now seen corresponding path program 1 times [2023-12-22 17:22:39,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:22:39,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137864433] [2023-12-22 17:22:39,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:22:39,313 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 17:22:39,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:22:39,314 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 17:22:39,328 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 17:22:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:22:39,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:22:39,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:22:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:22:39,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:22:39,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:22:39,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137864433] [2023-12-22 17:22:39,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137864433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:22:39,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:22:39,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:22:39,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838986243] [2023-12-22 17:22:39,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:22:39,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:22:39,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:22:39,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:22:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:22:39,999 INFO L87 Difference]: Start difference. First operand 5885 states and 8380 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 17:24:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:24:09,456 INFO L93 Difference]: Finished difference Result 17446 states and 24868 transitions. [2023-12-22 17:24:09,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:24:09,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 106 [2023-12-22 17:24:09,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:24:09,512 INFO L225 Difference]: With dead ends: 17446 [2023-12-22 17:24:09,513 INFO L226 Difference]: Without dead ends: 11562 [2023-12-22 17:24:09,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 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 17:24:09,526 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1746 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 4710 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.4s 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, 89.1s IncrementalHoareTripleChecker+Time [2023-12-22 17:24:09,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 1805 Invalid, 5653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [943 Valid, 4710 Invalid, 0 Unknown, 0 Unchecked, 89.1s Time] [2023-12-22 17:24:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11562 states. [2023-12-22 17:24:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11562 to 11545. [2023-12-22 17:24:09,718 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 17:24:09,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11545 states to 11545 states and 14779 transitions. [2023-12-22 17:24:09,741 INFO L78 Accepts]: Start accepts. Automaton has 11545 states and 14779 transitions. Word has length 106 [2023-12-22 17:24:09,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:24:09,742 INFO L495 AbstractCegarLoop]: Abstraction has 11545 states and 14779 transitions. [2023-12-22 17:24:09,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 17:24:09,743 INFO L276 IsEmpty]: Start isEmpty. Operand 11545 states and 14779 transitions. [2023-12-22 17:24:09,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 17:24:09,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:24:09,746 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 17:24:09,755 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 17:24:09,952 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 17:24:09,953 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:24:09,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:24:09,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1889016327, now seen corresponding path program 1 times [2023-12-22 17:24:09,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:24:09,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807390699] [2023-12-22 17:24:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:24:09,955 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 17:24:09,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:24:09,957 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 17:24:09,961 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 17:24:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:24:10,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:24:10,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:24:10,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:24:10,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:24:10,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:24:10,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807390699] [2023-12-22 17:24:10,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807390699] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:24:10,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:24:10,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:24:10,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717003121] [2023-12-22 17:24:10,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:24:10,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:24:10,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:24:10,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:24:10,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:24:10,585 INFO L87 Difference]: Start difference. First operand 11545 states and 14779 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 17:25:54,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:25:54,503 INFO L93 Difference]: Finished difference Result 34048 states and 43521 transitions. [2023-12-22 17:25:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:25:54,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 114 [2023-12-22 17:25:54,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:25:54,582 INFO L225 Difference]: With dead ends: 34048 [2023-12-22 17:25:54,583 INFO L226 Difference]: Without dead ends: 22504 [2023-12-22 17:25:54,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 17:25:54,603 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1356 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 4628 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.8s 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, 103.5s IncrementalHoareTripleChecker+Time [2023-12-22 17:25:54,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1879 Invalid, 5767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1139 Valid, 4628 Invalid, 0 Unknown, 0 Unchecked, 103.5s Time] [2023-12-22 17:25:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22504 states. [2023-12-22 17:25:54,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22504 to 22499. [2023-12-22 17:25:54,952 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 17:25:54,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 26550 transitions. [2023-12-22 17:25:54,985 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 26550 transitions. Word has length 114 [2023-12-22 17:25:54,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:25:54,986 INFO L495 AbstractCegarLoop]: Abstraction has 22499 states and 26550 transitions. [2023-12-22 17:25:54,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 17:25:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 26550 transitions. [2023-12-22 17:25:54,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-22 17:25:54,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:25:54,998 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:25:55,008 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 17:25:55,198 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 17:25:55,199 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:25:55,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:25:55,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1107291625, now seen corresponding path program 1 times [2023-12-22 17:25:55,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:25:55,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785235826] [2023-12-22 17:25:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:25:55,201 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 17:25:55,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:25:55,202 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 17:25:55,203 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 17:25:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:25:55,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:25:55,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:25:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-22 17:25:56,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:25:56,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:25:56,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785235826] [2023-12-22 17:25:56,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785235826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:25:56,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:25:56,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:25:56,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158169929] [2023-12-22 17:25:56,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:25:56,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:25:56,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:25:56,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:25:56,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:25:56,126 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 17:27:53,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:27:53,199 INFO L93 Difference]: Finished difference Result 47682 states and 57969 transitions. [2023-12-22 17:27:53,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:27:53,200 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 191 [2023-12-22 17:27:53,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:27:53,253 INFO L225 Difference]: With dead ends: 47682 [2023-12-22 17:27:53,253 INFO L226 Difference]: Without dead ends: 26549 [2023-12-22 17:27:53,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 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 17:27:53,276 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2469 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5282 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.7s 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, 116.6s IncrementalHoareTripleChecker+Time [2023-12-22 17:27:53,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 984 Invalid, 5547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 5282 Invalid, 0 Unknown, 0 Unchecked, 116.6s Time] [2023-12-22 17:27:53,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26549 states. [2023-12-22 17:27:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26549 to 26546. [2023-12-22 17:27:53,573 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 17:27:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26546 states to 26546 states and 31682 transitions. [2023-12-22 17:27:53,616 INFO L78 Accepts]: Start accepts. Automaton has 26546 states and 31682 transitions. Word has length 191 [2023-12-22 17:27:53,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:27:53,617 INFO L495 AbstractCegarLoop]: Abstraction has 26546 states and 31682 transitions. [2023-12-22 17:27:53,619 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 17:27:53,619 INFO L276 IsEmpty]: Start isEmpty. Operand 26546 states and 31682 transitions. [2023-12-22 17:27:53,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-22 17:27:53,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:27:53,621 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 17:27:53,626 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 17:27:53,826 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 17:27:53,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:27:53,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:27:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash -420079888, now seen corresponding path program 1 times [2023-12-22 17:27:53,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:27:53,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451219048] [2023-12-22 17:27:53,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:27:53,829 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 17:27:53,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:27:53,830 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 17:27:53,831 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 17:27:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:27:53,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 17:27:53,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:27:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:27:57,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:27:57,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:27:57,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451219048] [2023-12-22 17:27:57,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451219048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:27:57,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:27:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:27:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965456324] [2023-12-22 17:27:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:27:57,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:27:57,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:27:57,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:27:57,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:27:57,605 INFO L87 Difference]: Start difference. First operand 26546 states and 31682 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 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 17:29:18,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:29:18,387 INFO L93 Difference]: Finished difference Result 44887 states and 54555 transitions. [2023-12-22 17:29:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:29:18,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 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 216 [2023-12-22 17:29:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:29:18,429 INFO L225 Difference]: With dead ends: 44887 [2023-12-22 17:29:18,429 INFO L226 Difference]: Without dead ends: 27911 [2023-12-22 17:29:18,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 214 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 17:29:18,451 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1161 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.7s 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, 80.3s IncrementalHoareTripleChecker+Time [2023-12-22 17:29:18,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1945 Invalid, 4343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4338 Invalid, 0 Unknown, 0 Unchecked, 80.3s Time] [2023-12-22 17:29:18,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27911 states. [2023-12-22 17:29:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27911 to 27911. [2023-12-22 17:29:18,724 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 17:29:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27911 states to 27911 states and 33053 transitions. [2023-12-22 17:29:18,768 INFO L78 Accepts]: Start accepts. Automaton has 27911 states and 33053 transitions. Word has length 216 [2023-12-22 17:29:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:29:18,768 INFO L495 AbstractCegarLoop]: Abstraction has 27911 states and 33053 transitions. [2023-12-22 17:29:18,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 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 17:29:18,769 INFO L276 IsEmpty]: Start isEmpty. Operand 27911 states and 33053 transitions. [2023-12-22 17:29:18,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2023-12-22 17:29:18,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:29:18,774 INFO L195 NwaCegarLoop]: trace histogram [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, 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 17:29:18,780 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 (8)] Forceful destruction successful, exit code 0 [2023-12-22 17:29:18,980 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 17:29:18,981 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:29:18,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:29:18,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1987862371, now seen corresponding path program 1 times [2023-12-22 17:29:18,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:29:18,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028798949] [2023-12-22 17:29:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:29:18,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:29:18,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:29:18,985 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 17:29:18,986 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 17:29:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:29:19,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 17:29:19,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:29:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:29:26,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:29:26,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:29:26,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028798949] [2023-12-22 17:29:26,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028798949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:29:26,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:29:26,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 17:29:26,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835568379] [2023-12-22 17:29:26,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:29:26,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 17:29:26,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:29:26,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 17:29:26,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 17:29:26,134 INFO L87 Difference]: Start difference. First operand 27911 states and 33053 transitions. Second operand has 4 states, 4 states have (on average 101.0) internal successors, (404), 3 states have internal predecessors, (404), 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 17:30:46,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:30:46,518 INFO L93 Difference]: Finished difference Result 44918 states and 54574 transitions. [2023-12-22 17:30:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 17:30:46,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 3 states have internal predecessors, (404), 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 404 [2023-12-22 17:30:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:30:46,551 INFO L225 Difference]: With dead ends: 44918 [2023-12-22 17:30:46,551 INFO L226 Difference]: Without dead ends: 19707 [2023-12-22 17:30:46,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 401 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 17:30:46,563 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1151 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5714 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.9s 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, 79.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:30:46,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1949 Invalid, 5722 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 5714 Invalid, 0 Unknown, 0 Unchecked, 79.9s Time] [2023-12-22 17:30:46,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19707 states. [2023-12-22 17:30:46,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19707 to 19707. [2023-12-22 17:30:46,764 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 17:30:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19707 states to 19707 states and 24226 transitions. [2023-12-22 17:30:46,790 INFO L78 Accepts]: Start accepts. Automaton has 19707 states and 24226 transitions. Word has length 404 [2023-12-22 17:30:46,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:30:46,791 INFO L495 AbstractCegarLoop]: Abstraction has 19707 states and 24226 transitions. [2023-12-22 17:30:46,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 3 states have internal predecessors, (404), 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 17:30:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 19707 states and 24226 transitions. [2023-12-22 17:30:46,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2023-12-22 17:30:46,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:30:46,802 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:46,807 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 (9)] Forceful destruction successful, exit code 0 [2023-12-22 17:30:47,007 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 17:30:47,008 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:30:47,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:30:47,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1037475415, now seen corresponding path program 1 times [2023-12-22 17:30:47,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:30:47,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113199669] [2023-12-22 17:30:47,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:30:47,012 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 17:30:47,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:30:47,013 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 17:30:47,014 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 17:30:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:30:47,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 17:30:47,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:30:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 15 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:30:51,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:30:52,416 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:30:52,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:30:52,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113199669] [2023-12-22 17:30:52,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113199669] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 17:30:52,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 17:30:52,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 17:30:52,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571214055] [2023-12-22 17:30:52,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:30:52,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:30:52,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:30:52,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:30:52,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 17:30:52,419 INFO L87 Difference]: Start difference. First operand 19707 states and 24226 transitions. Second operand has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 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 17:31:00,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:31:02,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:31:56,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:32:21,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:32:27,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 17:32:59,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:32:59,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1195 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 17:32:59,098 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 1514 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3826 mSolverCounterSat, 1451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 5277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1451 IncrementalHoareTripleChecker+Valid, 3826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.2s IncrementalHoareTripleChecker+Time [2023-12-22 17:32:59,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1202 Invalid, 5277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1451 Valid, 3826 Invalid, 0 Unknown, 0 Unchecked, 126.2s Time] [2023-12-22 17:32:59,099 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 17:32:59,104 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 (10)] Forceful destruction successful, exit code 0 [2023-12-22 17:32:59,112 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 17:32:59,112 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 17:32:59,299 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 17:32:59,300 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 (39926 states constructed, input type IntersectNwa). [2023-12-22 17:32:59,304 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:32:59,306 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 17:32:59,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:32:59 BoogieIcfgContainer [2023-12-22 17:32:59,308 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 17:32:59,308 INFO L158 Benchmark]: Toolchain (without parser) took 859833.61ms. Allocated memory was 198.2MB in the beginning and 962.6MB in the end (delta: 764.4MB). Free memory was 120.0MB in the beginning and 611.1MB in the end (delta: -491.1MB). Peak memory consumption was 721.1MB. Max. memory is 8.0GB. [2023-12-22 17:32:59,309 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 198.2MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 17:32:59,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2546.90ms. Allocated memory was 198.2MB in the beginning and 357.6MB in the end (delta: 159.4MB). Free memory was 119.7MB in the beginning and 213.2MB in the end (delta: -93.5MB). Peak memory consumption was 219.8MB. Max. memory is 8.0GB. [2023-12-22 17:32:59,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 411.61ms. Allocated memory was 357.6MB in the beginning and 576.7MB in the end (delta: 219.2MB). Free memory was 212.6MB in the beginning and 453.3MB in the end (delta: -240.6MB). Peak memory consumption was 108.0MB. Max. memory is 8.0GB. [2023-12-22 17:32:59,309 INFO L158 Benchmark]: Boogie Preprocessor took 525.33ms. Allocated memory is still 576.7MB. Free memory was 453.3MB in the beginning and 407.2MB in the end (delta: 46.1MB). Peak memory consumption was 58.2MB. Max. memory is 8.0GB. [2023-12-22 17:32:59,310 INFO L158 Benchmark]: RCFGBuilder took 61192.43ms. Allocated memory was 576.7MB in the beginning and 962.6MB in the end (delta: 385.9MB). Free memory was 407.2MB in the beginning and 435.5MB in the end (delta: -28.3MB). Peak memory consumption was 358.6MB. Max. memory is 8.0GB. [2023-12-22 17:32:59,310 INFO L158 Benchmark]: TraceAbstraction took 795149.69ms. Allocated memory is still 962.6MB. Free memory was 434.9MB in the beginning and 611.1MB in the end (delta: -176.2MB). Peak memory consumption was 270.0MB. Max. memory is 8.0GB. [2023-12-22 17:32:59,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 198.2MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2546.90ms. Allocated memory was 198.2MB in the beginning and 357.6MB in the end (delta: 159.4MB). Free memory was 119.7MB in the beginning and 213.2MB in the end (delta: -93.5MB). Peak memory consumption was 219.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 411.61ms. Allocated memory was 357.6MB in the beginning and 576.7MB in the end (delta: 219.2MB). Free memory was 212.6MB in the beginning and 453.3MB in the end (delta: -240.6MB). Peak memory consumption was 108.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 525.33ms. Allocated memory is still 576.7MB. Free memory was 453.3MB in the beginning and 407.2MB in the end (delta: 46.1MB). Peak memory consumption was 58.2MB. Max. memory is 8.0GB. * RCFGBuilder took 61192.43ms. Allocated memory was 576.7MB in the beginning and 962.6MB in the end (delta: 385.9MB). Free memory was 407.2MB in the beginning and 435.5MB in the end (delta: -28.3MB). Peak memory consumption was 358.6MB. Max. memory is 8.0GB. * TraceAbstraction took 795149.69ms. Allocated memory is still 962.6MB. Free memory was 434.9MB in the beginning and 611.1MB in the end (delta: -176.2MB). Peak memory consumption was 270.0MB. 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: 56]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 56). 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 (39926 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 795.1s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 772.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12432 SdHoareTripleChecker+Valid, 768.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12432 mSDsluCounter, 15910 SdHoareTripleChecker+Invalid, 640.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1621 mSDsCounter, 5784 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37852 IncrementalHoareTripleChecker+Invalid, 43636 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5784 mSolverCounterUnsat, 14289 mSDtfsCounter, 37852 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2319 GetRequests, 2308 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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: 1.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 95 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2319 ConstructedInterpolants, 0 QuantifiedInterpolants, 12032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2104 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 416/519 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