/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/Problem14_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 12:15:34,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 12:15:34,607 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 12:15:34,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 12:15:34,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 12:15:34,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 12:15:34,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 12:15:34,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 12:15:34,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 12:15:34,626 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 12:15:34,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 12:15:34,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 12:15:34,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 12:15:34,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 12:15:34,627 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 12:15:34,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 12:15:34,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 12:15:34,627 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 12:15:34,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 12:15:34,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 12:15:34,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 12:15:34,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 12:15:34,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 12:15:34,636 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 12:15:34,636 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 12:15:34,637 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 12:15:34,637 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 12:15:34,637 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 12:15:34,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 12:15:34,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 12:15:34,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 12:15:34,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 12:15:34,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 12:15:34,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 12:15:34,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:15:34,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 12:15:34,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 12:15:34,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 12:15:34,639 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 12:15:34,639 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 12:15:34,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 12:15:34,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 12:15:34,640 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 12:15:34,640 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 12:15:34,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 12:15:34,640 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 12:15:34,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 12:15:34,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 12:15:34,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 12:15:34,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 12:15:34,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 12:15:34,852 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 12:15:34,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2023-12-22 12:15:35,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 12:15:36,063 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 12:15:36,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2023-12-22 12:15:36,074 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c05776f/ca03d70ae4e04c08b0495ee86df404f2/FLAGb2b0d593f [2023-12-22 12:15:36,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c05776f/ca03d70ae4e04c08b0495ee86df404f2 [2023-12-22 12:15:36,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 12:15:36,383 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 12:15:36,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 12:15:36,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 12:15:36,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 12:15:36,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:36,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab150c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36, skipping insertion in model container [2023-12-22 12:15:36,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:36,449 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 12:15:36,615 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/Problem14_label17.c[5746,5759] [2023-12-22 12:15:36,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:15:36,755 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 12:15:36,776 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/Problem14_label17.c[5746,5759] [2023-12-22 12:15:36,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:15:36,881 INFO L206 MainTranslator]: Completed translation [2023-12-22 12:15:36,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36 WrapperNode [2023-12-22 12:15:36,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 12:15:36,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 12:15:36,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 12:15:36,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 12:15:36,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:36,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:36,963 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-22 12:15:36,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 12:15:36,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 12:15:36,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 12:15:36,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 12:15:36,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:36,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:36,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,016 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 12:15:37,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 12:15:37,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 12:15:37,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 12:15:37,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 12:15:37,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (1/1) ... [2023-12-22 12:15:37,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:15:37,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 12:15:37,136 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 12:15:37,156 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 12:15:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 12:15:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 12:15:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 12:15:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 12:15:37,229 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 12:15:37,230 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 12:15:39,505 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 12:15:39,558 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 12:15:39,558 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 12:15:39,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:15:39 BoogieIcfgContainer [2023-12-22 12:15:39,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 12:15:39,561 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 12:15:39,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 12:15:39,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 12:15:39,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:15:36" (1/3) ... [2023-12-22 12:15:39,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8b58f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:15:39, skipping insertion in model container [2023-12-22 12:15:39,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:15:36" (2/3) ... [2023-12-22 12:15:39,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8b58f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:15:39, skipping insertion in model container [2023-12-22 12:15:39,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:15:39" (3/3) ... [2023-12-22 12:15:39,565 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2023-12-22 12:15:39,577 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 12:15:39,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 12:15:39,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 12:15:39,625 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;@41faca27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 12:15:39,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 12:15:39,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 12:15:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 12:15:39,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:15:39,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:15:39,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:15:39,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:15:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash 482238175, now seen corresponding path program 1 times [2023-12-22 12:15:39,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:15:39,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900508631] [2023-12-22 12:15:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:15:39,647 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 12:15:39,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:15:39,649 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 12:15:39,653 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 12:15:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:15:39,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 12:15:39,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:15:39,734 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 12:15:39,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:15:39,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:15:39,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900508631] [2023-12-22 12:15:39,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900508631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:15:39,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:15:39,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:15:39,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666333328] [2023-12-22 12:15:39,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:15:39,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 12:15:39,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:15:39,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 12:15:39,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 12:15:39,772 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 12:15:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:15:39,821 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-22 12:15:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 12:15:39,824 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2023-12-22 12:15:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:15:39,834 INFO L225 Difference]: With dead ends: 365 [2023-12-22 12:15:39,834 INFO L226 Difference]: Without dead ends: 181 [2023-12-22 12:15:39,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 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 12:15:39,840 INFO L413 NwaCegarLoop]: 295 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, 295 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 12:15:39,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 12:15:39,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-22 12:15:39,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-22 12:15:39,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 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 12:15:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-22 12:15:39,882 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 55 [2023-12-22 12:15:39,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:15:39,882 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-22 12:15:39,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 12:15:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-22 12:15:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 12:15:39,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:15:39,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:15:39,889 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 12:15:40,086 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 12:15:40,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:15:40,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:15:40,087 INFO L85 PathProgramCache]: Analyzing trace with hash 254476582, now seen corresponding path program 1 times [2023-12-22 12:15:40,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:15:40,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588191462] [2023-12-22 12:15:40,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:15:40,088 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 12:15:40,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:15:40,089 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 12:15:40,111 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 12:15:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:15:40,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:15:40,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:15:40,256 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 12:15:40,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:15:40,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:15:40,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588191462] [2023-12-22 12:15:40,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588191462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:15:40,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:15:40,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:15:40,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211509525] [2023-12-22 12:15:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:15:40,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:15:40,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:15:40,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:15:40,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:15:40,259 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 12:15:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:15:42,888 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-22 12:15:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:15:42,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2023-12-22 12:15:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:15:42,891 INFO L225 Difference]: With dead ends: 539 [2023-12-22 12:15:42,891 INFO L226 Difference]: Without dead ends: 359 [2023-12-22 12:15:42,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 12:15:42,892 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:15:42,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 64 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-22 12:15:42,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-22 12:15:42,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-22 12:15:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.488826815642458) internal successors, (533), 358 states have internal predecessors, (533), 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 12:15:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2023-12-22 12:15:42,904 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 55 [2023-12-22 12:15:42,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:15:42,905 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2023-12-22 12:15:42,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 12:15:42,905 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2023-12-22 12:15:42,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 12:15:42,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:15:42,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:15:42,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 12:15:43,109 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 12:15:43,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:15:43,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:15:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1881402764, now seen corresponding path program 1 times [2023-12-22 12:15:43,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:15:43,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188852969] [2023-12-22 12:15:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:15:43,111 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 12:15:43,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:15:43,113 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 12:15:43,114 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 12:15:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:15:43,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:15:43,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:15:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:15:43,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:15:43,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:15:43,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188852969] [2023-12-22 12:15:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188852969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:15:43,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:15:43,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:15:43,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014715391] [2023-12-22 12:15:43,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:15:43,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:15:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:15:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:15:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:15:43,261 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 12:15:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:15:46,267 INFO L93 Difference]: Finished difference Result 1073 states and 1596 transitions. [2023-12-22 12:15:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:15:46,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 120 [2023-12-22 12:15:46,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:15:46,270 INFO L225 Difference]: With dead ends: 1073 [2023-12-22 12:15:46,270 INFO L226 Difference]: Without dead ends: 715 [2023-12-22 12:15:46,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 12:15:46,272 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:15:46,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 100 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 12:15:46,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-22 12:15:46,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-22 12:15:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3459383753501402) internal successors, (961), 714 states have internal predecessors, (961), 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 12:15:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 961 transitions. [2023-12-22 12:15:46,292 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 961 transitions. Word has length 120 [2023-12-22 12:15:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:15:46,293 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 961 transitions. [2023-12-22 12:15:46,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 12:15:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 961 transitions. [2023-12-22 12:15:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-22 12:15:46,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:15:46,294 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:15:46,305 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 12:15:46,497 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 12:15:46,498 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:15:46,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:15:46,498 INFO L85 PathProgramCache]: Analyzing trace with hash 724071632, now seen corresponding path program 1 times [2023-12-22 12:15:46,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:15:46,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146853881] [2023-12-22 12:15:46,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:15:46,499 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 12:15:46,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:15:46,504 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 12:15:46,516 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 12:15:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:15:46,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:15:46,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:15:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:15:46,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:15:46,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:15:46,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146853881] [2023-12-22 12:15:46,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146853881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:15:46,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:15:46,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:15:46,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299974902] [2023-12-22 12:15:46,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:15:46,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:15:46,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:15:46,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:15:46,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:15:46,704 INFO L87 Difference]: Start difference. First operand 715 states and 961 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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 12:15:49,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:15:49,343 INFO L93 Difference]: Finished difference Result 1963 states and 2654 transitions. [2023-12-22 12:15:49,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:15:49,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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 123 [2023-12-22 12:15:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:15:49,351 INFO L225 Difference]: With dead ends: 1963 [2023-12-22 12:15:49,351 INFO L226 Difference]: Without dead ends: 1249 [2023-12-22 12:15:49,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 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 12:15:49,357 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:15:49,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 87 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-22 12:15:49,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-22 12:15:49,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2023-12-22 12:15:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2459935897435896) internal successors, (1555), 1248 states have internal predecessors, (1555), 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 12:15:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1555 transitions. [2023-12-22 12:15:49,388 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1555 transitions. Word has length 123 [2023-12-22 12:15:49,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:15:49,389 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1555 transitions. [2023-12-22 12:15:49,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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 12:15:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1555 transitions. [2023-12-22 12:15:49,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-22 12:15:49,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:15:49,398 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:15:49,407 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 12:15:49,609 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 12:15:49,610 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:15:49,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:15:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1775406690, now seen corresponding path program 1 times [2023-12-22 12:15:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:15:49,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963859692] [2023-12-22 12:15:49,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:15:49,611 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 12:15:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:15:49,612 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 12:15:49,614 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 12:15:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:15:49,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 12:15:49,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:15:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-22 12:15:50,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:15:50,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:15:50,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963859692] [2023-12-22 12:15:50,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963859692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:15:50,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:15:50,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:15:50,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619452273] [2023-12-22 12:15:50,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:15:50,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:15:50,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:15:50,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:15:50,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:15:50,315 INFO L87 Difference]: Start difference. First operand 1249 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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 12:15:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:15:53,036 INFO L93 Difference]: Finished difference Result 2170 states and 2740 transitions. [2023-12-22 12:15:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:15:53,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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 204 [2023-12-22 12:15:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:15:53,039 INFO L225 Difference]: With dead ends: 2170 [2023-12-22 12:15:53,039 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 12:15:53,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:15:53,041 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 101 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:15:53,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 111 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 12:15:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 12:15:53,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 12:15:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2392523364485981) internal successors, (1326), 1070 states have internal predecessors, (1326), 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 12:15:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1326 transitions. [2023-12-22 12:15:53,055 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1326 transitions. Word has length 204 [2023-12-22 12:15:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:15:53,056 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1326 transitions. [2023-12-22 12:15:53,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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 12:15:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1326 transitions. [2023-12-22 12:15:53,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-22 12:15:53,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:15:53,063 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:15:53,070 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 (6)] Forceful destruction successful, exit code 0 [2023-12-22 12:15:53,264 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 12:15:53,264 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:15:53,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:15:53,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2137044961, now seen corresponding path program 1 times [2023-12-22 12:15:53,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:15:53,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044082847] [2023-12-22 12:15:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:15:53,266 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 12:15:53,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:15:53,267 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 12:15:53,267 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 12:15:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:15:53,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:15:53,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:15:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-22 12:15:53,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:15:53,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:15:53,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044082847] [2023-12-22 12:15:53,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044082847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:15:53,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:15:53,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:15:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640644961] [2023-12-22 12:15:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:15:53,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:15:53,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:15:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:15:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:15:53,960 INFO L87 Difference]: Start difference. First operand 1071 states and 1326 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 12:15:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:15:55,865 INFO L93 Difference]: Finished difference Result 1785 states and 2286 transitions. [2023-12-22 12:15:55,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:15:55,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 230 [2023-12-22 12:15:55,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:15:55,869 INFO L225 Difference]: With dead ends: 1785 [2023-12-22 12:15:55,869 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 12:15:55,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 228 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 12:15:55,870 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:15:55,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 12:15:55,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 12:15:55,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 12:15:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.233644859813084) internal successors, (1320), 1070 states have internal predecessors, (1320), 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 12:15:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1320 transitions. [2023-12-22 12:15:55,882 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1320 transitions. Word has length 230 [2023-12-22 12:15:55,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:15:55,882 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1320 transitions. [2023-12-22 12:15:55,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 12:15:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1320 transitions. [2023-12-22 12:15:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-12-22 12:15:55,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:15:55,885 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:15:55,890 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 12:15:56,088 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 12:15:56,088 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:15:56,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:15:56,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1712828817, now seen corresponding path program 1 times [2023-12-22 12:15:56,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:15:56,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79503571] [2023-12-22 12:15:56,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:15:56,090 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 12:15:56,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:15:56,091 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 12:15:56,091 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 12:15:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:15:56,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:15:56,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:15:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 161 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:15:56,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:15:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:15:57,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:15:57,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79503571] [2023-12-22 12:15:57,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79503571] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:15:57,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:15:57,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:15:57,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567272231] [2023-12-22 12:15:57,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:15:57,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:15:57,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:15:57,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:15:57,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:15:57,039 INFO L87 Difference]: Start difference. First operand 1071 states and 1320 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 12:16:02,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:16:02,932 INFO L93 Difference]: Finished difference Result 2141 states and 2811 transitions. [2023-12-22 12:16:02,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:16:02,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 334 [2023-12-22 12:16:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:16:02,936 INFO L225 Difference]: With dead ends: 2141 [2023-12-22 12:16:02,936 INFO L226 Difference]: Without dead ends: 1427 [2023-12-22 12:16:02,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:16:02,937 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:16:02,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 57 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-22 12:16:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-12-22 12:16:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2023-12-22 12:16:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.238429172510519) internal successors, (1766), 1426 states have internal predecessors, (1766), 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 12:16:02,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1766 transitions. [2023-12-22 12:16:02,952 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1766 transitions. Word has length 334 [2023-12-22 12:16:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:16:02,953 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1766 transitions. [2023-12-22 12:16:02,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 12:16:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1766 transitions. [2023-12-22 12:16:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2023-12-22 12:16:02,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:16:02,957 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:16:02,961 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 12:16:03,161 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 12:16:03,162 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:16:03,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:16:03,162 INFO L85 PathProgramCache]: Analyzing trace with hash 299766868, now seen corresponding path program 1 times [2023-12-22 12:16:03,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:16:03,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635235650] [2023-12-22 12:16:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:16:03,164 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 12:16:03,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:16:03,165 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 12:16:03,183 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 12:16:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:16:03,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:16:03,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:16:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 438 proven. 159 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-12-22 12:16:03,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:16:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 597 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-12-22 12:16:04,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:16:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635235650] [2023-12-22 12:16:04,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635235650] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:16:04,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:16:04,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:16:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002449240] [2023-12-22 12:16:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:16:04,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:16:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:16:04,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:16:04,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:16:04,155 INFO L87 Difference]: Start difference. First operand 1427 states and 1766 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 12:16:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:16:09,742 INFO L93 Difference]: Finished difference Result 3209 states and 4149 transitions. [2023-12-22 12:16:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:16:09,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 445 [2023-12-22 12:16:09,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:16:09,749 INFO L225 Difference]: With dead ends: 3209 [2023-12-22 12:16:09,749 INFO L226 Difference]: Without dead ends: 2139 [2023-12-22 12:16:09,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 885 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:16:09,752 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:16:09,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 245 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-22 12:16:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-22 12:16:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-22 12:16:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2464920486435922) internal successors, (2665), 2138 states have internal predecessors, (2665), 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 12:16:09,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2665 transitions. [2023-12-22 12:16:09,780 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2665 transitions. Word has length 445 [2023-12-22 12:16:09,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:16:09,780 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2665 transitions. [2023-12-22 12:16:09,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 12:16:09,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2665 transitions. [2023-12-22 12:16:09,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-12-22 12:16:09,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:16:09,783 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:16:09,788 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 12:16:09,987 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 12:16:09,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:16:09,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:16:09,988 INFO L85 PathProgramCache]: Analyzing trace with hash -618797444, now seen corresponding path program 1 times [2023-12-22 12:16:09,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:16:09,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958050340] [2023-12-22 12:16:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:16:09,990 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 12:16:09,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:16:09,991 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 12:16:09,991 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 12:16:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:16:10,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 12:16:10,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:16:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 501 proven. 277 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-22 12:16:11,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:16:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 749 proven. 29 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-22 12:16:16,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:16:16,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958050340] [2023-12-22 12:16:16,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958050340] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:16:16,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:16:16,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-22 12:16:16,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428007733] [2023-12-22 12:16:16,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:16:16,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 12:16:16,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:16:16,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 12:16:16,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-22 12:16:16,475 INFO L87 Difference]: Start difference. First operand 2139 states and 2665 transitions. Second operand has 9 states, 9 states have (on average 85.88888888888889) internal successors, (773), 9 states have internal predecessors, (773), 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 12:16:40,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:16:49,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:16:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:16:52,816 INFO L93 Difference]: Finished difference Result 5819 states and 7409 transitions. [2023-12-22 12:16:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:16:52,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 85.88888888888889) internal successors, (773), 9 states have internal predecessors, (773), 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 461 [2023-12-22 12:16:52,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:16:52,825 INFO L225 Difference]: With dead ends: 5819 [2023-12-22 12:16:52,826 INFO L226 Difference]: Without dead ends: 3921 [2023-12-22 12:16:52,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-22 12:16:52,828 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 877 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:16:52,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 44 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 36.0s Time] [2023-12-22 12:16:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2023-12-22 12:16:52,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3741. [2023-12-22 12:16:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3740 states have (on average 1.108288770053476) internal successors, (4145), 3740 states have internal predecessors, (4145), 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 12:16:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4145 transitions. [2023-12-22 12:16:52,895 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4145 transitions. Word has length 461 [2023-12-22 12:16:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:16:52,896 INFO L495 AbstractCegarLoop]: Abstraction has 3741 states and 4145 transitions. [2023-12-22 12:16:52,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 85.88888888888889) internal successors, (773), 9 states have internal predecessors, (773), 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 12:16:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4145 transitions. [2023-12-22 12:16:52,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2023-12-22 12:16:52,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:16:52,900 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:16:52,909 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 12:16:53,109 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 12:16:53,109 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:16:53,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:16:53,113 INFO L85 PathProgramCache]: Analyzing trace with hash 521075499, now seen corresponding path program 1 times [2023-12-22 12:16:53,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:16:53,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644362785] [2023-12-22 12:16:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:16:53,115 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 12:16:53,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:16:53,116 INFO L229 MonitoredProcess]: Starting monitored process 11 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 12:16:53,121 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 (11)] Waiting until timeout for monitored process [2023-12-22 12:16:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:16:53,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:16:53,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:17:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 104 proven. 1167 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:17:00,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:17:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 750 proven. 521 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:17:17,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:17:17,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644362785] [2023-12-22 12:17:17,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644362785] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:17:17,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:17:17,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-12-22 12:17:17,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767708432] [2023-12-22 12:17:17,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:17:17,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-22 12:17:17,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:17:17,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-22 12:17:17,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-12-22 12:17:17,214 INFO L87 Difference]: Start difference. First operand 3741 states and 4145 transitions. Second operand has 22 states, 22 states have (on average 51.5) internal successors, (1133), 22 states have internal predecessors, (1133), 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 12:17:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:17:26,121 INFO L93 Difference]: Finished difference Result 7641 states and 8498 transitions. [2023-12-22 12:17:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-22 12:17:26,122 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 51.5) internal successors, (1133), 22 states have internal predecessors, (1133), 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 709 [2023-12-22 12:17:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:17:26,133 INFO L225 Difference]: With dead ends: 7641 [2023-12-22 12:17:26,134 INFO L226 Difference]: Without dead ends: 4257 [2023-12-22 12:17:26,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1401 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=251, Invalid=679, Unknown=0, NotChecked=0, Total=930 [2023-12-22 12:17:26,138 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1392 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 4290 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 4363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 4290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:17:26,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 103 Invalid, 4363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 4290 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-12-22 12:17:26,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4257 states. [2023-12-22 12:17:26,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4257 to 3732. [2023-12-22 12:17:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 3731 states have (on average 1.1085499865987671) internal successors, (4136), 3731 states have internal predecessors, (4136), 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 12:17:26,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4136 transitions. [2023-12-22 12:17:26,204 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4136 transitions. Word has length 709 [2023-12-22 12:17:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:17:26,207 INFO L495 AbstractCegarLoop]: Abstraction has 3732 states and 4136 transitions. [2023-12-22 12:17:26,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 51.5) internal successors, (1133), 22 states have internal predecessors, (1133), 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 12:17:26,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4136 transitions. [2023-12-22 12:17:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2023-12-22 12:17:26,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:17:26,212 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:17:26,229 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 (11)] Forceful destruction successful, exit code 0 [2023-12-22 12:17:26,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 12:17:26,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:17:26,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:17:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash -996061000, now seen corresponding path program 1 times [2023-12-22 12:17:26,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:17:26,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026174526] [2023-12-22 12:17:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:17:26,422 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 12:17:26,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:17:26,429 INFO L229 MonitoredProcess]: Starting monitored process 12 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 12:17:26,429 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 (12)] Waiting until timeout for monitored process [2023-12-22 12:17:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:17:26,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 12:17:26,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:17:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 824 proven. 420 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-12-22 12:17:32,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:17:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 1208 proven. 36 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-12-22 12:17:45,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:17:45,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026174526] [2023-12-22 12:17:45,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026174526] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:17:45,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:17:45,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-22 12:17:45,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24648174] [2023-12-22 12:17:45,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:17:45,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-22 12:17:45,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:17:45,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-22 12:17:45,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-12-22 12:17:45,390 INFO L87 Difference]: Start difference. First operand 3732 states and 4136 transitions. Second operand has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 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 12:17:55,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:17:55,961 INFO L93 Difference]: Finished difference Result 7791 states and 8616 transitions. [2023-12-22 12:17:55,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-22 12:17:55,962 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 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 727 [2023-12-22 12:17:55,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:17:55,972 INFO L225 Difference]: With dead ends: 7791 [2023-12-22 12:17:55,972 INFO L226 Difference]: Without dead ends: 4042 [2023-12-22 12:17:55,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1466 GetRequests, 1438 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=264, Invalid=606, Unknown=0, NotChecked=0, Total=870 [2023-12-22 12:17:55,977 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1677 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 4567 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 4730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 4567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:17:55,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 81 Invalid, 4730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 4567 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-12-22 12:17:55,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2023-12-22 12:17:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 3709. [2023-12-22 12:17:56,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3708 states have (on average 1.0841423948220066) internal successors, (4020), 3708 states have internal predecessors, (4020), 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 12:17:56,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4020 transitions. [2023-12-22 12:17:56,028 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4020 transitions. Word has length 727 [2023-12-22 12:17:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:17:56,029 INFO L495 AbstractCegarLoop]: Abstraction has 3709 states and 4020 transitions. [2023-12-22 12:17:56,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 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 12:17:56,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4020 transitions. [2023-12-22 12:17:56,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2023-12-22 12:17:56,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:17:56,034 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:17:56,040 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 (12)] Forceful destruction successful, exit code 0 [2023-12-22 12:17:56,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 12:17:56,240 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:17:56,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:17:56,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1222868966, now seen corresponding path program 1 times [2023-12-22 12:17:56,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:17:56,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600466418] [2023-12-22 12:17:56,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:17:56,243 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 12:17:56,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:17:56,244 INFO L229 MonitoredProcess]: Starting monitored process 13 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 12:17:56,246 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 (13)] Waiting until timeout for monitored process [2023-12-22 12:17:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:17:56,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:17:56,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:18:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 458 proven. 1115 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:18:03,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:19:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 1286 proven. 0 refuted. 287 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:19:23,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:19:23,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600466418] [2023-12-22 12:19:23,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600466418] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:19:23,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:19:23,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-22 12:19:23,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612864001] [2023-12-22 12:19:23,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:19:23,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-22 12:19:23,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:19:23,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-22 12:19:23,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=277, Unknown=1, NotChecked=0, Total=420 [2023-12-22 12:19:23,466 INFO L87 Difference]: Start difference. First operand 3709 states and 4020 transitions. Second operand has 21 states, 21 states have (on average 54.476190476190474) internal successors, (1144), 21 states have internal predecessors, (1144), 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 12:19:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:19:39,465 INFO L93 Difference]: Finished difference Result 7500 states and 8131 transitions. [2023-12-22 12:19:39,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 12:19:39,466 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 54.476190476190474) internal successors, (1144), 21 states have internal predecessors, (1144), 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 804 [2023-12-22 12:19:39,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:19:39,477 INFO L225 Difference]: With dead ends: 7500 [2023-12-22 12:19:39,477 INFO L226 Difference]: Without dead ends: 4186 [2023-12-22 12:19:39,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1608 GetRequests, 1589 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=142, Invalid=277, Unknown=1, NotChecked=0, Total=420 [2023-12-22 12:19:39,482 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 247 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:19:39,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 85 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2023-12-22 12:19:39,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2023-12-22 12:19:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3781. [2023-12-22 12:19:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3780 states have (on average 1.0825396825396825) internal successors, (4092), 3780 states have internal predecessors, (4092), 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 12:19:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4092 transitions. [2023-12-22 12:19:39,538 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4092 transitions. Word has length 804 [2023-12-22 12:19:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:19:39,539 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4092 transitions. [2023-12-22 12:19:39,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 54.476190476190474) internal successors, (1144), 21 states have internal predecessors, (1144), 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 12:19:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4092 transitions. [2023-12-22 12:19:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2023-12-22 12:19:39,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:19:39,546 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:19:39,558 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 (13)] Forceful destruction successful, exit code 0 [2023-12-22 12:19:39,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 12:19:39,754 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:19:39,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:19:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1271046086, now seen corresponding path program 1 times [2023-12-22 12:19:39,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:19:39,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205866351] [2023-12-22 12:19:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:19:39,757 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 12:19:39,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:19:39,765 INFO L229 MonitoredProcess]: Starting monitored process 14 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 12:19:39,766 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 (14)] Waiting until timeout for monitored process [2023-12-22 12:19:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:19:40,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:19:40,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:19:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-12-22 12:19:40,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:19:40,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:19:40,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205866351] [2023-12-22 12:19:40,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205866351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:19:40,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:19:40,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:19:40,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616319669] [2023-12-22 12:19:40,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:19:40,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:19:40,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:19:40,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:19:40,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:19:40,158 INFO L87 Difference]: Start difference. First operand 3781 states and 4092 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 12:19:42,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:19:42,802 INFO L93 Difference]: Finished difference Result 5029 states and 5550 transitions. [2023-12-22 12:19:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:19:42,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 876 [2023-12-22 12:19:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:19:42,820 INFO L225 Difference]: With dead ends: 5029 [2023-12-22 12:19:42,820 INFO L226 Difference]: Without dead ends: 5027 [2023-12-22 12:19:42,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 874 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 12:19:42,821 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 136 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:19:42,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 206 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-22 12:19:42,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2023-12-22 12:19:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4493. [2023-12-22 12:19:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4493 states, 4492 states have (on average 1.105966162065895) internal successors, (4968), 4492 states have internal predecessors, (4968), 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 12:19:42,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 4968 transitions. [2023-12-22 12:19:42,891 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 4968 transitions. Word has length 876 [2023-12-22 12:19:42,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:19:42,891 INFO L495 AbstractCegarLoop]: Abstraction has 4493 states and 4968 transitions. [2023-12-22 12:19:42,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 12:19:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 4968 transitions. [2023-12-22 12:19:42,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2023-12-22 12:19:42,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:19:42,900 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:19:42,932 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 (14)] Forceful destruction successful, exit code 0 [2023-12-22 12:19:43,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 12:19:43,117 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:19:43,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:19:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash 412841475, now seen corresponding path program 1 times [2023-12-22 12:19:43,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:19:43,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707457352] [2023-12-22 12:19:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:19:43,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:19:43,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:19:43,121 INFO L229 MonitoredProcess]: Starting monitored process 15 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 12:19:43,124 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 (15)] Waiting until timeout for monitored process [2023-12-22 12:19:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:19:43,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:19:43,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:19:43,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2817 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 1357 trivial. 0 not checked. [2023-12-22 12:19:43,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:19:43,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:19:43,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707457352] [2023-12-22 12:19:43,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707457352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:19:43,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:19:43,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:19:43,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734137177] [2023-12-22 12:19:43,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:19:43,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:19:43,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:19:43,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:19:43,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:19:43,945 INFO L87 Difference]: Start difference. First operand 4493 states and 4968 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 12:19:46,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:19:46,063 INFO L93 Difference]: Finished difference Result 8629 states and 9584 transitions. [2023-12-22 12:19:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:19:46,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 899 [2023-12-22 12:19:46,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:19:46,076 INFO L225 Difference]: With dead ends: 8629 [2023-12-22 12:19:46,076 INFO L226 Difference]: Without dead ends: 4671 [2023-12-22 12:19:46,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 897 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 12:19:46,080 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:19:46,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 243 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 12:19:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2023-12-22 12:19:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4671. [2023-12-22 12:19:46,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4671 states, 4670 states have (on average 1.1025695931477517) internal successors, (5149), 4670 states have internal predecessors, (5149), 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 12:19:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4671 states to 4671 states and 5149 transitions. [2023-12-22 12:19:46,126 INFO L78 Accepts]: Start accepts. Automaton has 4671 states and 5149 transitions. Word has length 899 [2023-12-22 12:19:46,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:19:46,126 INFO L495 AbstractCegarLoop]: Abstraction has 4671 states and 5149 transitions. [2023-12-22 12:19:46,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 12:19:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4671 states and 5149 transitions. [2023-12-22 12:19:46,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2023-12-22 12:19:46,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:19:46,132 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:19:46,140 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 (15)] Forceful destruction successful, exit code 0 [2023-12-22 12:19:46,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 12:19:46,341 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:19:46,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:19:46,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1889211760, now seen corresponding path program 1 times [2023-12-22 12:19:46,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:19:46,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809373125] [2023-12-22 12:19:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:19:46,344 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 12:19:46,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:19:46,345 INFO L229 MonitoredProcess]: Starting monitored process 16 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 12:19:46,346 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 (16)] Waiting until timeout for monitored process [2023-12-22 12:19:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:19:46,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:19:46,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:19:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2486 backedges. 1963 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2023-12-22 12:19:47,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:19:47,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:19:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809373125] [2023-12-22 12:19:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809373125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:19:47,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:19:47,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 12:19:47,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498779835] [2023-12-22 12:19:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:19:47,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:19:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:19:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:19:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:19:47,550 INFO L87 Difference]: Start difference. First operand 4671 states and 5149 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 12:19:50,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:19:50,418 INFO L93 Difference]: Finished difference Result 8985 states and 9946 transitions. [2023-12-22 12:19:50,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:19:50,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 901 [2023-12-22 12:19:50,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:19:50,431 INFO L225 Difference]: With dead ends: 8985 [2023-12-22 12:19:50,431 INFO L226 Difference]: Without dead ends: 4849 [2023-12-22 12:19:50,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:19:50,435 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 67 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:19:50,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 55 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 12:19:50,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2023-12-22 12:19:50,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4849. [2023-12-22 12:19:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4849 states, 4848 states have (on average 1.0994224422442245) internal successors, (5330), 4848 states have internal predecessors, (5330), 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 12:19:50,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 5330 transitions. [2023-12-22 12:19:50,540 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 5330 transitions. Word has length 901 [2023-12-22 12:19:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:19:50,541 INFO L495 AbstractCegarLoop]: Abstraction has 4849 states and 5330 transitions. [2023-12-22 12:19:50,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 12:19:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 5330 transitions. [2023-12-22 12:19:50,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2023-12-22 12:19:50,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:19:50,549 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:19:50,572 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 (16)] Forceful destruction successful, exit code 0 [2023-12-22 12:19:50,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 12:19:50,757 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:19:50,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:19:50,757 INFO L85 PathProgramCache]: Analyzing trace with hash 217515647, now seen corresponding path program 1 times [2023-12-22 12:19:50,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:19:50,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978718520] [2023-12-22 12:19:50,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:19:50,760 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 12:19:50,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:19:50,761 INFO L229 MonitoredProcess]: Starting monitored process 17 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 12:19:50,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 12:19:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:19:51,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-22 12:19:51,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:19:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2868 backedges. 431 proven. 2066 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:19:54,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:20:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2868 backedges. 1830 proven. 94 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:20:02,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:20:02,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978718520] [2023-12-22 12:20:02,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978718520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:20:02,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:20:02,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-12-22 12:20:02,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677911359] [2023-12-22 12:20:02,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:20:02,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:20:02,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:20:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:20:02,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:20:02,913 INFO L87 Difference]: Start difference. First operand 4849 states and 5330 transitions. Second operand has 12 states, 12 states have (on average 95.5) internal successors, (1146), 11 states have internal predecessors, (1146), 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 12:20:15,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:20:15,019 INFO L93 Difference]: Finished difference Result 9945 states and 10951 transitions. [2023-12-22 12:20:15,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 12:20:15,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 95.5) internal successors, (1146), 11 states have internal predecessors, (1146), 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 946 [2023-12-22 12:20:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:20:15,032 INFO L225 Difference]: With dead ends: 9945 [2023-12-22 12:20:15,033 INFO L226 Difference]: Without dead ends: 5631 [2023-12-22 12:20:15,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1896 GetRequests, 1880 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-12-22 12:20:15,039 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 559 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 6052 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 6231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 6052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:20:15,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 116 Invalid, 6231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 6052 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-12-22 12:20:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2023-12-22 12:20:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 5354. [2023-12-22 12:20:15,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 1.0760321315150383) internal successors, (5760), 5353 states have internal predecessors, (5760), 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 12:20:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 5760 transitions. [2023-12-22 12:20:15,114 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 5760 transitions. Word has length 946 [2023-12-22 12:20:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:20:15,115 INFO L495 AbstractCegarLoop]: Abstraction has 5354 states and 5760 transitions. [2023-12-22 12:20:15,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 95.5) internal successors, (1146), 11 states have internal predecessors, (1146), 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 12:20:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 5760 transitions. [2023-12-22 12:20:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2023-12-22 12:20:15,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:20:15,127 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 12:20:15,144 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 (17)] Forceful destruction successful, exit code 0 [2023-12-22 12:20:15,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 12:20:15,337 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:20:15,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:20:15,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1978144953, now seen corresponding path program 1 times [2023-12-22 12:20:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:20:15,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069391008] [2023-12-22 12:20:15,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:20:15,342 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 12:20:15,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:20:15,343 INFO L229 MonitoredProcess]: Starting monitored process 18 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 12:20:15,345 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 (18)] Waiting until timeout for monitored process [2023-12-22 12:20:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:20:15,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:20:15,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:20:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3374 backedges. 200 proven. 2957 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:20:19,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:20:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3374 backedges. 913 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:20:31,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:20:31,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069391008] [2023-12-22 12:20:31,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069391008] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:20:31,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:20:31,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:20:31,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952257349] [2023-12-22 12:20:31,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:20:31,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:20:31,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:20:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:20:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:20:31,154 INFO L87 Difference]: Start difference. First operand 5354 states and 5760 transitions. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 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 12:20:41,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:20:46,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:21:03,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:21:04,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:04,529 INFO L93 Difference]: Finished difference Result 9726 states and 10528 transitions. [2023-12-22 12:21:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:21:04,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 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 1059 [2023-12-22 12:21:04,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:04,536 INFO L225 Difference]: With dead ends: 9726 [2023-12-22 12:21:04,536 INFO L226 Difference]: Without dead ends: 5354 [2023-12-22 12:21:04,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2116 GetRequests, 2106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:21:04,542 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 129 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:04,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 17 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 33.3s Time] [2023-12-22 12:21:04,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2023-12-22 12:21:04,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5354. [2023-12-22 12:21:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 1.0747244535774332) internal successors, (5753), 5353 states have internal predecessors, (5753), 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 12:21:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 5753 transitions. [2023-12-22 12:21:04,596 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 5753 transitions. Word has length 1059 [2023-12-22 12:21:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:04,597 INFO L495 AbstractCegarLoop]: Abstraction has 5354 states and 5753 transitions. [2023-12-22 12:21:04,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 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 12:21:04,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 5753 transitions. [2023-12-22 12:21:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2023-12-22 12:21:04,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:04,605 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 12:21:04,615 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 (18)] Ended with exit code 0 [2023-12-22 12:21:04,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 12:21:04,813 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:04,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:04,814 INFO L85 PathProgramCache]: Analyzing trace with hash 825748763, now seen corresponding path program 1 times [2023-12-22 12:21:04,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:04,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435724608] [2023-12-22 12:21:04,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:04,817 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 12:21:04,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:04,818 INFO L229 MonitoredProcess]: Starting monitored process 19 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 12:21:04,820 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 (19)] Waiting until timeout for monitored process [2023-12-22 12:21:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:05,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:21:05,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3458 backedges. 200 proven. 3041 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:21:09,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:21:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3458 backedges. 997 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:21:16,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:16,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435724608] [2023-12-22 12:21:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435724608] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:21:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:21:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:21:16,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802423048] [2023-12-22 12:21:16,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:21:16,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:21:16,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:16,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:21:16,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:21:16,914 INFO L87 Difference]: Start difference. First operand 5354 states and 5753 transitions. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 4 states have internal predecessors, (312), 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 12:21:22,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:21:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:21:29,722 INFO L93 Difference]: Finished difference Result 9726 states and 10514 transitions. [2023-12-22 12:21:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:21:29,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 4 states have internal predecessors, (312), 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 1071 [2023-12-22 12:21:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:21:29,731 INFO L225 Difference]: With dead ends: 9726 [2023-12-22 12:21:29,731 INFO L226 Difference]: Without dead ends: 5354 [2023-12-22 12:21:29,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2140 GetRequests, 2130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:21:29,736 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 169 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:21:29,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 14 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2023-12-22 12:21:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2023-12-22 12:21:29,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 4108. [2023-12-22 12:21:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 4107 states have (on average 1.055028000973947) internal successors, (4333), 4107 states have internal predecessors, (4333), 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 12:21:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 4333 transitions. [2023-12-22 12:21:29,786 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 4333 transitions. Word has length 1071 [2023-12-22 12:21:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:21:29,786 INFO L495 AbstractCegarLoop]: Abstraction has 4108 states and 4333 transitions. [2023-12-22 12:21:29,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 4 states have internal predecessors, (312), 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 12:21:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 4333 transitions. [2023-12-22 12:21:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1090 [2023-12-22 12:21:29,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:21:29,796 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:21:29,821 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 (19)] Forceful destruction successful, exit code 0 [2023-12-22 12:21:30,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 12:21:30,006 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:21:30,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:21:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1762617876, now seen corresponding path program 1 times [2023-12-22 12:21:30,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:21:30,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224357167] [2023-12-22 12:21:30,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:21:30,010 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 12:21:30,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:21:30,011 INFO L229 MonitoredProcess]: Starting monitored process 20 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 12:21:30,013 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 (20)] Waiting until timeout for monitored process [2023-12-22 12:21:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:21:30,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-22 12:21:30,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:21:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3875 backedges. 577 proven. 2927 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:21:35,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:21:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3875 backedges. 2591 proven. 340 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:21:44,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:21:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224357167] [2023-12-22 12:21:44,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224357167] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:21:44,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:21:44,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2023-12-22 12:21:44,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115799034] [2023-12-22 12:21:44,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:21:44,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-22 12:21:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:21:44,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-22 12:21:44,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-22 12:21:44,074 INFO L87 Difference]: Start difference. First operand 4108 states and 4333 transitions. Second operand has 14 states, 14 states have (on average 102.07142857142857) internal successors, (1429), 13 states have internal predecessors, (1429), 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 12:22:00,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:22:00,239 INFO L93 Difference]: Finished difference Result 7800 states and 8273 transitions. [2023-12-22 12:22:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 12:22:00,240 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 102.07142857142857) internal successors, (1429), 13 states have internal predecessors, (1429), 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 1089 [2023-12-22 12:22:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:22:00,245 INFO L225 Difference]: With dead ends: 7800 [2023-12-22 12:22:00,245 INFO L226 Difference]: Without dead ends: 4732 [2023-12-22 12:22:00,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2183 GetRequests, 2164 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:22:00,247 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 653 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 8087 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 8256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 8087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:22:00,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 145 Invalid, 8256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 8087 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2023-12-22 12:22:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2023-12-22 12:22:00,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4286. [2023-12-22 12:22:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4286 states, 4285 states have (on average 1.052975495915986) internal successors, (4512), 4285 states have internal predecessors, (4512), 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 12:22:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 4512 transitions. [2023-12-22 12:22:00,293 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 4512 transitions. Word has length 1089 [2023-12-22 12:22:00,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:22:00,293 INFO L495 AbstractCegarLoop]: Abstraction has 4286 states and 4512 transitions. [2023-12-22 12:22:00,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 102.07142857142857) internal successors, (1429), 13 states have internal predecessors, (1429), 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 12:22:00,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 4512 transitions. [2023-12-22 12:22:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1101 [2023-12-22 12:22:00,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:22:00,302 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 12:22:00,308 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 (20)] Forceful destruction successful, exit code 0 [2023-12-22 12:22:00,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 12:22:00,509 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:22:00,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:22:00,509 INFO L85 PathProgramCache]: Analyzing trace with hash -959705576, now seen corresponding path program 1 times [2023-12-22 12:22:00,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:22:00,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790036218] [2023-12-22 12:22:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:22:00,512 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 12:22:00,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:22:00,513 INFO L229 MonitoredProcess]: Starting monitored process 21 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 12:22:00,544 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 (21)] Waiting until timeout for monitored process [2023-12-22 12:22:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:22:00,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:22:00,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:22:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3652 backedges. 1191 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:22:00,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:22:00,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:22:01,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790036218] [2023-12-22 12:22:01,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790036218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:22:01,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:22:01,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:22:01,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48160286] [2023-12-22 12:22:01,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:22:01,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:22:01,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:22:01,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:22:01,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:22:01,001 INFO L87 Difference]: Start difference. First operand 4286 states and 4512 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 12:22:03,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:22:03,332 INFO L93 Difference]: Finished difference Result 9105 states and 9684 transitions. [2023-12-22 12:22:03,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:22:03,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 1100 [2023-12-22 12:22:03,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:22:03,338 INFO L225 Difference]: With dead ends: 9105 [2023-12-22 12:22:03,338 INFO L226 Difference]: Without dead ends: 4998 [2023-12-22 12:22:03,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1099 GetRequests, 1098 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 12:22:03,341 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:22:03,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 232 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 12:22:03,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4998 states. [2023-12-22 12:22:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4998 to 4464. [2023-12-22 12:22:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4464 states, 4463 states have (on average 1.0513107775039212) internal successors, (4692), 4463 states have internal predecessors, (4692), 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 12:22:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4464 states to 4464 states and 4692 transitions. [2023-12-22 12:22:03,388 INFO L78 Accepts]: Start accepts. Automaton has 4464 states and 4692 transitions. Word has length 1100 [2023-12-22 12:22:03,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:22:03,389 INFO L495 AbstractCegarLoop]: Abstraction has 4464 states and 4692 transitions. [2023-12-22 12:22:03,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 12:22:03,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4464 states and 4692 transitions. [2023-12-22 12:22:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2023-12-22 12:22:03,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:22:03,398 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:22:03,408 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 (21)] Forceful destruction successful, exit code 0 [2023-12-22 12:22:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 12:22:03,604 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:22:03,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:22:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1276524844, now seen corresponding path program 1 times [2023-12-22 12:22:03,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:22:03,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668417324] [2023-12-22 12:22:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:22:03,608 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 12:22:03,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:22:03,609 INFO L229 MonitoredProcess]: Starting monitored process 22 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 12:22:03,610 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 (22)] Waiting until timeout for monitored process [2023-12-22 12:22:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:22:03,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:22:03,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:22:04,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4886 backedges. 1380 proven. 0 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2023-12-22 12:22:04,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:22:04,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:22:04,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668417324] [2023-12-22 12:22:04,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668417324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:22:04,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:22:04,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:22:04,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636860892] [2023-12-22 12:22:04,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:22:04,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:22:04,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:22:04,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:22:04,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:22:04,090 INFO L87 Difference]: Start difference. First operand 4464 states and 4692 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:22:06,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:22:06,240 INFO L93 Difference]: Finished difference Result 8600 states and 9178 transitions. [2023-12-22 12:22:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:22:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 1225 [2023-12-22 12:22:06,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:22:06,244 INFO L225 Difference]: With dead ends: 8600 [2023-12-22 12:22:06,244 INFO L226 Difference]: Without dead ends: 5176 [2023-12-22 12:22:06,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1224 GetRequests, 1223 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 12:22:06,247 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 80 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:22:06,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 233 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 12:22:06,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5176 states. [2023-12-22 12:22:06,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 4998. [2023-12-22 12:22:06,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4997 states have (on average 1.051430858515109) internal successors, (5254), 4997 states have internal predecessors, (5254), 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 12:22:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 5254 transitions. [2023-12-22 12:22:06,292 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 5254 transitions. Word has length 1225 [2023-12-22 12:22:06,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:22:06,293 INFO L495 AbstractCegarLoop]: Abstraction has 4998 states and 5254 transitions. [2023-12-22 12:22:06,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:22:06,293 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 5254 transitions. [2023-12-22 12:22:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1404 [2023-12-22 12:22:06,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:22:06,306 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:22:06,321 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 (22)] Forceful destruction successful, exit code 0 [2023-12-22 12:22:06,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 12:22:06,513 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:22:06,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:22:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1300730941, now seen corresponding path program 1 times [2023-12-22 12:22:06,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:22:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322446234] [2023-12-22 12:22:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:22:06,517 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 12:22:06,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:22:06,518 INFO L229 MonitoredProcess]: Starting monitored process 23 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 12:22:06,534 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 (23)] Waiting until timeout for monitored process [2023-12-22 12:22:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:22:06,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:22:06,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:22:12,193 INFO L134 CoverageAnalysis]: Checked inductivity of 6109 backedges. 0 proven. 5525 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-12-22 12:22:12,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:22:15,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6109 backedges. 2126 proven. 378 refuted. 0 times theorem prover too weak. 3605 trivial. 0 not checked. [2023-12-22 12:22:15,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:22:15,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322446234] [2023-12-22 12:22:15,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322446234] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:22:15,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:22:15,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2023-12-22 12:22:15,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299345024] [2023-12-22 12:22:15,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:22:15,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-22 12:22:15,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:22:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-22 12:22:15,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:22:15,578 INFO L87 Difference]: Start difference. First operand 4998 states and 5254 transitions. Second operand has 13 states, 13 states have (on average 99.07692307692308) internal successors, (1288), 12 states have internal predecessors, (1288), 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 12:22:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:22:35,609 INFO L93 Difference]: Finished difference Result 12820 states and 13711 transitions. [2023-12-22 12:22:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 12:22:35,610 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 99.07692307692308) internal successors, (1288), 12 states have internal predecessors, (1288), 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 1403 [2023-12-22 12:22:35,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:22:35,617 INFO L225 Difference]: With dead ends: 12820 [2023-12-22 12:22:35,617 INFO L226 Difference]: Without dead ends: 8862 [2023-12-22 12:22:35,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2816 GetRequests, 2793 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2023-12-22 12:22:35,620 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1467 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9623 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 9906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 9623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:22:35,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 198 Invalid, 9906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 9623 Invalid, 0 Unknown, 0 Unchecked, 19.6s Time] [2023-12-22 12:22:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8862 states. [2023-12-22 12:22:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8862 to 5176. [2023-12-22 12:22:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 1.0502415458937198) internal successors, (5435), 5175 states have internal predecessors, (5435), 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 12:22:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 5435 transitions. [2023-12-22 12:22:35,664 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 5435 transitions. Word has length 1403 [2023-12-22 12:22:35,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:22:35,664 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 5435 transitions. [2023-12-22 12:22:35,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 99.07692307692308) internal successors, (1288), 12 states have internal predecessors, (1288), 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 12:22:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 5435 transitions. [2023-12-22 12:22:35,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1559 [2023-12-22 12:22:35,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:22:35,678 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:22:35,690 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 (23)] Forceful destruction successful, exit code 0 [2023-12-22 12:22:35,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 12:22:35,890 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:22:35,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:22:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1728092228, now seen corresponding path program 1 times [2023-12-22 12:22:35,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:22:35,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350834190] [2023-12-22 12:22:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:22:35,895 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 12:22:35,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:22:35,896 INFO L229 MonitoredProcess]: Starting monitored process 24 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 12:22:35,897 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 (24)] Waiting until timeout for monitored process [2023-12-22 12:22:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:22:36,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:22:36,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:22:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 7494 backedges. 0 proven. 6876 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-12-22 12:22:42,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:22:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 7494 backedges. 2271 proven. 1584 refuted. 0 times theorem prover too weak. 3639 trivial. 0 not checked. [2023-12-22 12:22:57,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:22:57,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350834190] [2023-12-22 12:22:57,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350834190] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:22:57,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:22:57,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2023-12-22 12:22:57,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009526653] [2023-12-22 12:22:57,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:22:57,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-22 12:22:57,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:22:57,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-22 12:22:57,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:22:57,422 INFO L87 Difference]: Start difference. First operand 5176 states and 5435 transitions. Second operand has 13 states, 13 states have (on average 108.76923076923077) internal successors, (1414), 12 states have internal predecessors, (1414), 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 12:23:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:27,970 INFO L93 Difference]: Finished difference Result 11760 states and 12468 transitions. [2023-12-22 12:23:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 12:23:27,971 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 108.76923076923077) internal successors, (1414), 12 states have internal predecessors, (1414), 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 1558 [2023-12-22 12:23:27,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:27,976 INFO L225 Difference]: With dead ends: 11760 [2023-12-22 12:23:27,977 INFO L226 Difference]: Without dead ends: 6856 [2023-12-22 12:23:27,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3123 GetRequests, 3103 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-12-22 12:23:27,980 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 758 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 10537 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 10877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 10537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:27,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 238 Invalid, 10877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 10537 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time] [2023-12-22 12:23:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6856 states. [2023-12-22 12:23:28,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6856 to 5354. [2023-12-22 12:23:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 1.0509994395665982) internal successors, (5626), 5353 states have internal predecessors, (5626), 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 12:23:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 5626 transitions. [2023-12-22 12:23:28,026 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 5626 transitions. Word has length 1558 [2023-12-22 12:23:28,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:28,027 INFO L495 AbstractCegarLoop]: Abstraction has 5354 states and 5626 transitions. [2023-12-22 12:23:28,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.76923076923077) internal successors, (1414), 12 states have internal predecessors, (1414), 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 12:23:28,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 5626 transitions. [2023-12-22 12:23:28,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1636 [2023-12-22 12:23:28,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:23:28,051 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:23:28,064 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 (24)] Forceful destruction successful, exit code 0 [2023-12-22 12:23:28,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 12:23:28,252 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:23:28,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:23:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash 539837904, now seen corresponding path program 1 times [2023-12-22 12:23:28,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:23:28,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119596143] [2023-12-22 12:23:28,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:23:28,257 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 12:23:28,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:23:28,258 INFO L229 MonitoredProcess]: Starting monitored process 25 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 12:23:28,259 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 (25)] Waiting until timeout for monitored process [2023-12-22 12:23:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:23:28,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 12:23:28,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:23:30,648 INFO L134 CoverageAnalysis]: Checked inductivity of 8458 backedges. 1994 proven. 5816 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-12-22 12:23:30,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:23:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 8458 backedges. 4639 proven. 150 refuted. 0 times theorem prover too weak. 3669 trivial. 0 not checked. [2023-12-22 12:23:31,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:23:31,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119596143] [2023-12-22 12:23:31,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119596143] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:23:31,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:23:31,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:23:31,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935806694] [2023-12-22 12:23:31,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:23:31,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 12:23:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:23:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 12:23:31,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-22 12:23:31,767 INFO L87 Difference]: Start difference. First operand 5354 states and 5626 transitions. Second operand has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 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 12:23:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:23:48,572 INFO L93 Difference]: Finished difference Result 12770 states and 13580 transitions. [2023-12-22 12:23:48,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 12:23:48,578 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 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 1635 [2023-12-22 12:23:48,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:23:48,579 INFO L225 Difference]: With dead ends: 12770 [2023-12-22 12:23:48,579 INFO L226 Difference]: Without dead ends: 0 [2023-12-22 12:23:48,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3270 GetRequests, 3260 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:23:48,585 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 399 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 7725 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 7813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 7725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:23:48,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 153 Invalid, 7813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 7725 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2023-12-22 12:23:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-22 12:23:48,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-22 12:23:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:23:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-22 12:23:48,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1635 [2023-12-22 12:23:48,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:23:48,586 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-22 12:23:48,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 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 12:23:48,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-22 12:23:48,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-22 12:23:48,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 12:23:48,598 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 (25)] Ended with exit code 0 [2023-12-22 12:23:48,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 12:23:48,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-22 12:24:07,854 WARN L293 SmtUtils]: Spent 17.89s on a formula simplification. DAG size of input: 324 DAG size of output: 66 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-22 12:24:07,860 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2023-12-22 12:24:07,860 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-12-22 12:24:07,860 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2023-12-22 12:24:07,860 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2023-12-22 12:24:07,860 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2023-12-22 12:24:07,861 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2023-12-22 12:24:07,862 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2023-12-22 12:24:07,863 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2023-12-22 12:24:07,864 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2023-12-22 12:24:07,864 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2023-12-22 12:24:07,864 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2023-12-22 12:24:07,864 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2023-12-22 12:24:07,865 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,866 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,867 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,868 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2023-12-22 12:24:07,869 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2023-12-22 12:24:07,870 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 900) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2023-12-22 12:24:07,871 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-22 12:24:07,872 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2023-12-22 12:24:07,872 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2023-12-22 12:24:07,872 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,872 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,872 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-12-22 12:24:07,872 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,872 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2023-12-22 12:24:07,873 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse11 (bvslt (_ bv11 32) ~a12~0))) (let ((.cse1 (= (_ bv10 32) ~a21~0)) (.cse4 (= (_ bv5 32) ~a15~0)) (.cse0 (bvsle (bvadd (_ bv4294367247 32) ~a12~0) (_ bv4294967253 32))) (.cse5 (= (_ bv6 32) ~a21~0)) (.cse7 (= (_ bv8 32) ~a21~0)) (.cse10 (= (bvadd (_ bv49 32) ~a12~0) (_ bv0 32))) (.cse12 (bvslt (_ bv80 32) ~a12~0)) (.cse2 (not (bvsle ~a12~0 (_ bv4294967253 32)))) (.cse8 (not (= (_ bv8 32) ~a15~0))) (.cse13 (bvsle (bvmul (bvsdiv (bvadd (_ bv4294438260 32) ~a12~0) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32))) (.cse15 (= (_ bv7 32) ~a21~0)) (.cse14 (bvslt (_ bv80 32) (bvadd (_ bv526055 32) ~a12~0))) (.cse9 (= ~a21~0 (_ bv9 32))) (.cse3 (= (_ bv1 32) ~a24~0)) (.cse6 (not .cse11))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse0 .cse7 .cse8 .cse2 .cse3) (and .cse9 .cse2 .cse3 .cse6) (and .cse1 .cse10) (and .cse0 .cse8 (not .cse4) .cse3) (and (bvsge (_ bv80 32) ~a12~0) .cse9 .cse3 .cse11) (and .cse12 .cse13 .cse5 .cse3) (and .cse0 .cse8 .cse2 .cse5 .cse3) (and .cse8 .cse3 .cse14 .cse6) (and .cse7 .cse2 .cse13 .cse3) (and .cse10 .cse15) (and (= (_ bv0 32) ~a12~0) .cse15) (and (not .cse12) .cse8 .cse2 .cse3) (and .cse8 .cse13 .cse3 .cse15 .cse14) (and (not .cse9) (not .cse3) .cse6)))) [2023-12-22 12:24:07,873 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2023-12-22 12:24:07,873 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2023-12-22 12:24:07,873 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2023-12-22 12:24:07,874 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2023-12-22 12:24:07,877 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:24:07,878 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 12:24:07,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:24:07 BoogieIcfgContainer [2023-12-22 12:24:07,902 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 12:24:07,902 INFO L158 Benchmark]: Toolchain (without parser) took 511519.35ms. Allocated memory was 295.7MB in the beginning and 653.3MB in the end (delta: 357.6MB). Free memory was 243.2MB in the beginning and 412.1MB in the end (delta: -168.9MB). Peak memory consumption was 417.4MB. Max. memory is 8.0GB. [2023-12-22 12:24:07,902 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 200.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 12:24:07,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.54ms. Allocated memory is still 295.7MB. Free memory was 242.7MB in the beginning and 204.9MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-22 12:24:07,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.47ms. Allocated memory is still 295.7MB. Free memory was 204.9MB in the beginning and 198.1MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-22 12:24:07,902 INFO L158 Benchmark]: Boogie Preprocessor took 122.59ms. Allocated memory is still 295.7MB. Free memory was 198.1MB in the beginning and 191.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-22 12:24:07,903 INFO L158 Benchmark]: RCFGBuilder took 2471.00ms. Allocated memory is still 295.7MB. Free memory was 191.3MB in the beginning and 128.5MB in the end (delta: 62.8MB). Peak memory consumption was 63.8MB. Max. memory is 8.0GB. [2023-12-22 12:24:07,904 INFO L158 Benchmark]: TraceAbstraction took 508341.07ms. Allocated memory was 295.7MB in the beginning and 653.3MB in the end (delta: 357.6MB). Free memory was 128.0MB in the beginning and 412.1MB in the end (delta: -284.1MB). Peak memory consumption was 301.2MB. Max. memory is 8.0GB. [2023-12-22 12:24:07,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 200.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 497.54ms. Allocated memory is still 295.7MB. Free memory was 242.7MB in the beginning and 204.9MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.47ms. Allocated memory is still 295.7MB. Free memory was 204.9MB in the beginning and 198.1MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 122.59ms. Allocated memory is still 295.7MB. Free memory was 198.1MB in the beginning and 191.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2471.00ms. Allocated memory is still 295.7MB. Free memory was 191.3MB in the beginning and 128.5MB in the end (delta: 62.8MB). Peak memory consumption was 63.8MB. Max. memory is 8.0GB. * TraceAbstraction took 508341.07ms. Allocated memory was 295.7MB in the beginning and 653.3MB in the end (delta: 357.6MB). Free memory was 128.0MB in the beginning and 412.1MB in the end (delta: -284.1MB). Peak memory consumption was 301.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 182]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 508.3s, OverallIterations: 24, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 250.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 19.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9527 SdHoareTripleChecker+Valid, 244.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9527 mSDsluCounter, 3243 SdHoareTripleChecker+Invalid, 219.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 965 mSDsCounter, 2505 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63664 IncrementalHoareTripleChecker+Invalid, 66169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2505 mSolverCounterUnsat, 2278 mSDtfsCounter, 63664 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30301 GetRequests, 30091 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 20.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5354occurred in iteration=16, InterpolantAutomatonStates: 202, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 24 MinimizatonAttempts, 9846 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 67 NumberOfFragments, 248 HoareAnnotationTreeSize, 1 FormulaSimplifications, 21763 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 1 FormulaSimplificationsInter, 10838 FormulaSimplificationTreeSizeReductionInter, 17.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 227.1s InterpolantComputationTime, 18029 NumberOfCodeBlocks, 18029 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 30233 ConstructedInterpolants, 0 QuantifiedInterpolants, 199591 SizeOfPredicates, 37 NumberOfNonLiveVariables, 19951 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 37 InterpolantComputations, 15 PerfectInterpolantSequences, 65162/101062 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((((((((((-600049 + a12) % 4294967296) <= -43) && (10 == a21)) && !((a12 <= -43))) && (1 == a24)) || (((5 == a15) && (6 == a21)) && !((11 < a12)))) || (((((((-600049 + a12) % 4294967296) <= -43) && (8 == a21)) && !((8 == a15))) && !((a12 <= -43))) && (1 == a24))) || ((((a21 == 9) && !((a12 <= -43))) && (1 == a24)) && !((11 < a12)))) || ((10 == a21) && (((49 + a12) % 4294967296) == 0))) || ((((((-600049 + a12) % 4294967296) <= -43) && !((8 == a15))) && !((5 == a15))) && (1 == a24))) || ((((80 >= a12) && (a21 == 9)) && (1 == a24)) && (11 < a12))) || ((((80 < a12) && (((((-529036 + a12) % 4294967296) / 5) * 5) <= -43)) && (6 == a21)) && (1 == a24))) || (((((((-600049 + a12) % 4294967296) <= -43) && !((8 == a15))) && !((a12 <= -43))) && (6 == a21)) && (1 == a24))) || (((!((8 == a15)) && (1 == a24)) && (80 < ((526055 + a12) % 4294967296))) && !((11 < a12)))) || ((((8 == a21) && !((a12 <= -43))) && (((((-529036 + a12) % 4294967296) / 5) * 5) <= -43)) && (1 == a24))) || ((((49 + a12) % 4294967296) == 0) && (7 == a21))) || ((0 == a12) && (7 == a21))) || (((!((80 < a12)) && !((8 == a15))) && !((a12 <= -43))) && (1 == a24))) || ((((!((8 == a15)) && (((((-529036 + a12) % 4294967296) / 5) * 5) <= -43)) && (1 == a24)) && (7 == a21)) && (80 < ((526055 + a12) % 4294967296)))) || ((!((a21 == 9)) && !((1 == a24))) && !((11 < a12)))) RESULT: Ultimate proved your program to be correct! [2023-12-22 12:24:07,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...