/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/systemc/mem_slave_tlm.4.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:52:24,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:52:24,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:52:24,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:52:24,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:52:24,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:52:24,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:52:24,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:52:24,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:52:24,258 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:52:24,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:52:24,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:52:24,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:52:24,259 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:52:24,262 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:52:24,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:52:24,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:52:24,266 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:52:24,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:52:24,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:52:24,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:52:24,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:52:24,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:52:24,270 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:52:24,270 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:52:24,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:52:24,271 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:52:24,271 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:52:24,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:52:24,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:52:24,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:52:24,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:52:24,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:52:24,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:52:24,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:52:24,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:52:24,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:52:24,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:52:24,274 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:52:24,274 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:52:24,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:52:24,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:52:24,274 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:52:24,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:52:24,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:52:24,275 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:52:24,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:52:24,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:52:24,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:52:24,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:52:24,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:52:24,532 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:52:24,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c [2023-12-16 17:52:25,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:52:25,938 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:52:25,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c [2023-12-16 17:52:25,952 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95381670/f185d95fff6b40ba91a6fa16ac3afab3/FLAGf686328ca [2023-12-16 17:52:25,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95381670/f185d95fff6b40ba91a6fa16ac3afab3 [2023-12-16 17:52:25,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:52:25,966 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:52:25,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:52:25,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:52:25,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:52:25,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:52:25" (1/1) ... [2023-12-16 17:52:25,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277bfb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:25, skipping insertion in model container [2023-12-16 17:52:25,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:52:25" (1/1) ... [2023-12-16 17:52:26,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:52:26,149 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c[646,659] [2023-12-16 17:52:26,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:52:26,268 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:52:26,276 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c[646,659] [2023-12-16 17:52:26,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:52:26,341 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:52:26,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26 WrapperNode [2023-12-16 17:52:26,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:52:26,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:52:26,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:52:26,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:52:26,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,402 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 859 [2023-12-16 17:52:26,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:52:26,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:52:26,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:52:26,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:52:26,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,446 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]. [2023-12-16 17:52:26,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:52:26,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:52:26,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:52:26,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:52:26,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (1/1) ... [2023-12-16 17:52:26,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:52:26,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:52:26,541 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) [2023-12-16 17:52:26,566 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 [2023-12-16 17:52:26,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:52:26,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:52:26,580 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 17:52:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 17:52:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:52:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:52:26,697 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:52:26,701 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:52:27,479 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:52:27,534 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:52:27,534 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-16 17:52:27,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:52:27 BoogieIcfgContainer [2023-12-16 17:52:27,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:52:27,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:52:27,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:52:27,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:52:27,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:52:25" (1/3) ... [2023-12-16 17:52:27,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3efe91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:52:27, skipping insertion in model container [2023-12-16 17:52:27,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:26" (2/3) ... [2023-12-16 17:52:27,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3efe91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:52:27, skipping insertion in model container [2023-12-16 17:52:27,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:52:27" (3/3) ... [2023-12-16 17:52:27,542 INFO L112 eAbstractionObserver]: Analyzing ICFG mem_slave_tlm.4.cil.c [2023-12-16 17:52:27,559 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:52:27,559 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:52:27,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:52:27,612 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;@56f80f11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:52:27,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:52:27,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 253 states, 245 states have (on average 1.9387755102040816) internal successors, (475), 251 states have internal predecessors, (475), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 17:52:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 17:52:27,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:27,630 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] [2023-12-16 17:52:27,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:27,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:27,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1837280988, now seen corresponding path program 1 times [2023-12-16 17:52:27,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:27,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105252505] [2023-12-16 17:52:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:27,647 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 [2023-12-16 17:52:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:27,652 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) [2023-12-16 17:52:27,664 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 [2023-12-16 17:52:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:27,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:52:27,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:27,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:27,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:27,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105252505] [2023-12-16 17:52:27,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105252505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:27,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:27,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:27,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676486077] [2023-12-16 17:52:27,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:27,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:52:27,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:27,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:52:27,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:52:27,842 INFO L87 Difference]: Start difference. First operand has 253 states, 245 states have (on average 1.9387755102040816) internal successors, (475), 251 states have internal predecessors, (475), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:27,976 INFO L93 Difference]: Finished difference Result 486 states and 933 transitions. [2023-12-16 17:52:27,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:52:27,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-12-16 17:52:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:27,996 INFO L225 Difference]: With dead ends: 486 [2023-12-16 17:52:27,996 INFO L226 Difference]: Without dead ends: 250 [2023-12-16 17:52:28,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:52:28,005 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:28,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:28,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-16 17:52:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2023-12-16 17:52:28,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 244 states have (on average 1.8278688524590163) internal successors, (446), 248 states have internal predecessors, (446), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 451 transitions. [2023-12-16 17:52:28,050 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 451 transitions. Word has length 26 [2023-12-16 17:52:28,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:28,050 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 451 transitions. [2023-12-16 17:52:28,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:28,051 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 451 transitions. [2023-12-16 17:52:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 17:52:28,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:28,053 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] [2023-12-16 17:52:28,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:52:28,254 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 [2023-12-16 17:52:28,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:28,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1283938675, now seen corresponding path program 1 times [2023-12-16 17:52:28,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:28,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780907548] [2023-12-16 17:52:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:28,257 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 [2023-12-16 17:52:28,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:28,258 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) [2023-12-16 17:52:28,276 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 [2023-12-16 17:52:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:28,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:28,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:28,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:28,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:28,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780907548] [2023-12-16 17:52:28,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780907548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:28,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:28,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:28,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670570006] [2023-12-16 17:52:28,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:28,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:28,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:28,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:28,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:28,409 INFO L87 Difference]: Start difference. First operand 250 states and 451 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:28,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:28,800 INFO L93 Difference]: Finished difference Result 661 states and 1177 transitions. [2023-12-16 17:52:28,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:28,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-16 17:52:28,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:28,803 INFO L225 Difference]: With dead ends: 661 [2023-12-16 17:52:28,804 INFO L226 Difference]: Without dead ends: 415 [2023-12-16 17:52:28,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:28,806 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 239 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:28,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 708 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:52:28,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-12-16 17:52:28,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 408. [2023-12-16 17:52:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 402 states have (on average 1.644278606965174) internal successors, (661), 406 states have internal predecessors, (661), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 666 transitions. [2023-12-16 17:52:28,836 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 666 transitions. Word has length 27 [2023-12-16 17:52:28,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:28,837 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 666 transitions. [2023-12-16 17:52:28,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 666 transitions. [2023-12-16 17:52:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 17:52:28,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:28,839 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] [2023-12-16 17:52:28,843 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 [2023-12-16 17:52:29,039 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 [2023-12-16 17:52:29,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:29,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:29,041 INFO L85 PathProgramCache]: Analyzing trace with hash 410826932, now seen corresponding path program 1 times [2023-12-16 17:52:29,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:29,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740061973] [2023-12-16 17:52:29,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:29,041 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 [2023-12-16 17:52:29,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:29,045 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) [2023-12-16 17:52:29,046 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 [2023-12-16 17:52:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:29,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:29,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:29,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:29,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:29,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740061973] [2023-12-16 17:52:29,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740061973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:29,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:29,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593745026] [2023-12-16 17:52:29,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:29,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:29,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:29,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:29,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:29,136 INFO L87 Difference]: Start difference. First operand 408 states and 666 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:29,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:29,328 INFO L93 Difference]: Finished difference Result 1072 states and 1776 transitions. [2023-12-16 17:52:29,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:29,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-16 17:52:29,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:29,332 INFO L225 Difference]: With dead ends: 1072 [2023-12-16 17:52:29,333 INFO L226 Difference]: Without dead ends: 677 [2023-12-16 17:52:29,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:29,340 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 316 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:29,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 940 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-12-16 17:52:29,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 670. [2023-12-16 17:52:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 664 states have (on average 1.6762048192771084) internal successors, (1113), 668 states have internal predecessors, (1113), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1118 transitions. [2023-12-16 17:52:29,387 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1118 transitions. Word has length 38 [2023-12-16 17:52:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:29,388 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 1118 transitions. [2023-12-16 17:52:29,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:29,388 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1118 transitions. [2023-12-16 17:52:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 17:52:29,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:29,393 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] [2023-12-16 17:52:29,396 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 [2023-12-16 17:52:29,595 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 [2023-12-16 17:52:29,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:29,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash 73427941, now seen corresponding path program 1 times [2023-12-16 17:52:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:29,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188736425] [2023-12-16 17:52:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:29,597 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 [2023-12-16 17:52:29,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:29,598 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) [2023-12-16 17:52:29,601 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 [2023-12-16 17:52:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:29,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:29,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:29,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:29,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:29,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188736425] [2023-12-16 17:52:29,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188736425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:29,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:29,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:29,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062847822] [2023-12-16 17:52:29,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:29,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:29,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:29,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:29,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:29,689 INFO L87 Difference]: Start difference. First operand 670 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:29,798 INFO L93 Difference]: Finished difference Result 1676 states and 2799 transitions. [2023-12-16 17:52:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:29,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-12-16 17:52:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:29,803 INFO L225 Difference]: With dead ends: 1676 [2023-12-16 17:52:29,803 INFO L226 Difference]: Without dead ends: 1030 [2023-12-16 17:52:29,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:29,805 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 340 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:29,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 742 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-16 17:52:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1019. [2023-12-16 17:52:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1013 states have (on average 1.6692991115498519) internal successors, (1691), 1017 states have internal predecessors, (1691), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1696 transitions. [2023-12-16 17:52:29,837 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1696 transitions. Word has length 39 [2023-12-16 17:52:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:29,838 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1696 transitions. [2023-12-16 17:52:29,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1696 transitions. [2023-12-16 17:52:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 17:52:29,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:29,839 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:52:29,847 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 [2023-12-16 17:52:30,047 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 [2023-12-16 17:52:30,047 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:30,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1803426404, now seen corresponding path program 1 times [2023-12-16 17:52:30,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:30,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686656899] [2023-12-16 17:52:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:30,048 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 [2023-12-16 17:52:30,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:30,085 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) [2023-12-16 17:52:30,086 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 [2023-12-16 17:52:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:30,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:30,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:30,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:30,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:30,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686656899] [2023-12-16 17:52:30,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686656899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:30,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:30,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:30,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740544563] [2023-12-16 17:52:30,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:30,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:30,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:30,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:30,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:30,212 INFO L87 Difference]: Start difference. First operand 1019 states and 1696 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:30,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:30,352 INFO L93 Difference]: Finished difference Result 2708 states and 4520 transitions. [2023-12-16 17:52:30,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:30,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-12-16 17:52:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:30,360 INFO L225 Difference]: With dead ends: 2708 [2023-12-16 17:52:30,360 INFO L226 Difference]: Without dead ends: 1713 [2023-12-16 17:52:30,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:30,363 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 314 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:30,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 878 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2023-12-16 17:52:30,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1693. [2023-12-16 17:52:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1687 states have (on average 1.6698280972139894) internal successors, (2817), 1691 states have internal predecessors, (2817), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2822 transitions. [2023-12-16 17:52:30,423 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2822 transitions. Word has length 43 [2023-12-16 17:52:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:30,424 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2822 transitions. [2023-12-16 17:52:30,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2822 transitions. [2023-12-16 17:52:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:52:30,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:30,426 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:52:30,435 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 [2023-12-16 17:52:30,629 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 [2023-12-16 17:52:30,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:30,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:30,630 INFO L85 PathProgramCache]: Analyzing trace with hash 195132105, now seen corresponding path program 1 times [2023-12-16 17:52:30,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:30,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392640758] [2023-12-16 17:52:30,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:30,631 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 [2023-12-16 17:52:30,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:30,633 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) [2023-12-16 17:52:30,644 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 [2023-12-16 17:52:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:30,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:30,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:30,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:30,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:30,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:30,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392640758] [2023-12-16 17:52:30,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392640758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:30,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:30,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:30,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821511316] [2023-12-16 17:52:30,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:30,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:30,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:30,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:30,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:30,728 INFO L87 Difference]: Start difference. First operand 1693 states and 2822 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:30,865 INFO L93 Difference]: Finished difference Result 3366 states and 5612 transitions. [2023-12-16 17:52:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:30,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-16 17:52:30,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:30,872 INFO L225 Difference]: With dead ends: 3366 [2023-12-16 17:52:30,872 INFO L226 Difference]: Without dead ends: 1697 [2023-12-16 17:52:30,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:30,877 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 404 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:30,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 966 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:30,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2023-12-16 17:52:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1591. [2023-12-16 17:52:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1585 states have (on average 1.6485804416403786) internal successors, (2613), 1589 states have internal predecessors, (2613), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:30,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 2618 transitions. [2023-12-16 17:52:30,933 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 2618 transitions. Word has length 53 [2023-12-16 17:52:30,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:30,934 INFO L495 AbstractCegarLoop]: Abstraction has 1591 states and 2618 transitions. [2023-12-16 17:52:30,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:30,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 2618 transitions. [2023-12-16 17:52:30,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 17:52:30,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:30,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:30,942 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 (7)] Ended with exit code 0 [2023-12-16 17:52:31,141 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 [2023-12-16 17:52:31,142 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:31,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:31,142 INFO L85 PathProgramCache]: Analyzing trace with hash -399352451, now seen corresponding path program 1 times [2023-12-16 17:52:31,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:31,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085218323] [2023-12-16 17:52:31,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:31,143 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 [2023-12-16 17:52:31,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:31,144 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) [2023-12-16 17:52:31,147 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 [2023-12-16 17:52:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:31,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:31,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:31,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:31,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:31,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085218323] [2023-12-16 17:52:31,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085218323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:31,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:31,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:31,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743497144] [2023-12-16 17:52:31,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:31,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:31,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:31,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:31,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:31,236 INFO L87 Difference]: Start difference. First operand 1591 states and 2618 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:31,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:31,445 INFO L93 Difference]: Finished difference Result 4140 states and 6782 transitions. [2023-12-16 17:52:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:31,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-16 17:52:31,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:31,455 INFO L225 Difference]: With dead ends: 4140 [2023-12-16 17:52:31,455 INFO L226 Difference]: Without dead ends: 2567 [2023-12-16 17:52:31,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:31,460 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 357 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:31,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 751 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:31,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2023-12-16 17:52:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2524. [2023-12-16 17:52:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2524 states, 2518 states have (on average 1.6028594122319302) internal successors, (4036), 2522 states have internal predecessors, (4036), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 4041 transitions. [2023-12-16 17:52:31,597 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 4041 transitions. Word has length 57 [2023-12-16 17:52:31,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:31,597 INFO L495 AbstractCegarLoop]: Abstraction has 2524 states and 4041 transitions. [2023-12-16 17:52:31,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 4041 transitions. [2023-12-16 17:52:31,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 17:52:31,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:31,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:31,605 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 [2023-12-16 17:52:31,803 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 [2023-12-16 17:52:31,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:31,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:31,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1084631645, now seen corresponding path program 1 times [2023-12-16 17:52:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:31,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790432016] [2023-12-16 17:52:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:31,804 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 [2023-12-16 17:52:31,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:31,805 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) [2023-12-16 17:52:31,808 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 [2023-12-16 17:52:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:31,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:31,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:31,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:31,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:31,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790432016] [2023-12-16 17:52:31,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790432016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:31,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:31,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:31,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164172666] [2023-12-16 17:52:31,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:31,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:31,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:31,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:31,891 INFO L87 Difference]: Start difference. First operand 2524 states and 4041 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:32,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:32,243 INFO L93 Difference]: Finished difference Result 6105 states and 9859 transitions. [2023-12-16 17:52:32,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:32,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-16 17:52:32,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:32,257 INFO L225 Difference]: With dead ends: 6105 [2023-12-16 17:52:32,258 INFO L226 Difference]: Without dead ends: 3646 [2023-12-16 17:52:32,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:32,263 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 241 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:32,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 791 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:52:32,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2023-12-16 17:52:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3623. [2023-12-16 17:52:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 3617 states have (on average 1.5120265413325962) internal successors, (5469), 3621 states have internal predecessors, (5469), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:32,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 5474 transitions. [2023-12-16 17:52:32,385 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 5474 transitions. Word has length 57 [2023-12-16 17:52:32,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:32,387 INFO L495 AbstractCegarLoop]: Abstraction has 3623 states and 5474 transitions. [2023-12-16 17:52:32,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:32,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 5474 transitions. [2023-12-16 17:52:32,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 17:52:32,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:32,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:32,392 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 [2023-12-16 17:52:32,591 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 [2023-12-16 17:52:32,592 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:32,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1961685769, now seen corresponding path program 1 times [2023-12-16 17:52:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:32,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902273105] [2023-12-16 17:52:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:32,593 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 [2023-12-16 17:52:32,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:32,594 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) [2023-12-16 17:52:32,596 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 [2023-12-16 17:52:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:32,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:32,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:32,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:32,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902273105] [2023-12-16 17:52:32,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902273105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:32,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:32,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:32,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769255132] [2023-12-16 17:52:32,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:32,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:32,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:32,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:32,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:32,722 INFO L87 Difference]: Start difference. First operand 3623 states and 5474 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:32,921 INFO L93 Difference]: Finished difference Result 7118 states and 10776 transitions. [2023-12-16 17:52:32,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:32,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-16 17:52:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:32,933 INFO L225 Difference]: With dead ends: 7118 [2023-12-16 17:52:32,933 INFO L226 Difference]: Without dead ends: 3560 [2023-12-16 17:52:32,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:32,939 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 329 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:32,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 402 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:32,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2023-12-16 17:52:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3560. [2023-12-16 17:52:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3554 states have (on average 1.4845244794597636) internal successors, (5276), 3558 states have internal predecessors, (5276), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5281 transitions. [2023-12-16 17:52:33,064 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5281 transitions. Word has length 59 [2023-12-16 17:52:33,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:33,064 INFO L495 AbstractCegarLoop]: Abstraction has 3560 states and 5281 transitions. [2023-12-16 17:52:33,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5281 transitions. [2023-12-16 17:52:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 17:52:33,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:33,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:33,072 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 [2023-12-16 17:52:33,272 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 [2023-12-16 17:52:33,272 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:33,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:33,272 INFO L85 PathProgramCache]: Analyzing trace with hash 514755726, now seen corresponding path program 1 times [2023-12-16 17:52:33,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:33,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371526208] [2023-12-16 17:52:33,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:33,273 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 [2023-12-16 17:52:33,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:33,274 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) [2023-12-16 17:52:33,275 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 [2023-12-16 17:52:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:33,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:33,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:33,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:33,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:33,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:33,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371526208] [2023-12-16 17:52:33,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371526208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:33,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:33,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:33,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260794383] [2023-12-16 17:52:33,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:33,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:33,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:33,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:33,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:33,356 INFO L87 Difference]: Start difference. First operand 3560 states and 5281 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:33,525 INFO L93 Difference]: Finished difference Result 7710 states and 11413 transitions. [2023-12-16 17:52:33,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:33,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-16 17:52:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:33,540 INFO L225 Difference]: With dead ends: 7710 [2023-12-16 17:52:33,540 INFO L226 Difference]: Without dead ends: 4170 [2023-12-16 17:52:33,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:33,547 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 217 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:33,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 897 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2023-12-16 17:52:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3253. [2023-12-16 17:52:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3247 states have (on average 1.4878349245457345) internal successors, (4831), 3251 states have internal predecessors, (4831), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 4836 transitions. [2023-12-16 17:52:33,696 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 4836 transitions. Word has length 60 [2023-12-16 17:52:33,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:33,698 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 4836 transitions. [2023-12-16 17:52:33,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 4836 transitions. [2023-12-16 17:52:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 17:52:33,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:33,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:33,711 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 (11)] Ended with exit code 0 [2023-12-16 17:52:33,904 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 [2023-12-16 17:52:33,905 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:33,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash 951806806, now seen corresponding path program 1 times [2023-12-16 17:52:33,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:33,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684275039] [2023-12-16 17:52:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:33,906 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 [2023-12-16 17:52:33,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:33,908 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) [2023-12-16 17:52:33,920 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 [2023-12-16 17:52:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:33,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:52:33,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:34,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:34,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:34,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684275039] [2023-12-16 17:52:34,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684275039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:34,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:34,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:52:34,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840765116] [2023-12-16 17:52:34,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:34,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:52:34,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:34,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:52:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:52:34,046 INFO L87 Difference]: Start difference. First operand 3253 states and 4836 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:34,457 INFO L93 Difference]: Finished difference Result 9062 states and 13564 transitions. [2023-12-16 17:52:34,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:52:34,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-16 17:52:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:34,496 INFO L225 Difference]: With dead ends: 9062 [2023-12-16 17:52:34,496 INFO L226 Difference]: Without dead ends: 6658 [2023-12-16 17:52:34,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:52:34,503 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 733 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:34,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 2175 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2023-12-16 17:52:34,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 4738. [2023-12-16 17:52:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4738 states, 4732 states have (on average 1.4826711749788672) internal successors, (7016), 4736 states have internal predecessors, (7016), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4738 states to 4738 states and 7021 transitions. [2023-12-16 17:52:34,755 INFO L78 Accepts]: Start accepts. Automaton has 4738 states and 7021 transitions. Word has length 62 [2023-12-16 17:52:34,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:34,755 INFO L495 AbstractCegarLoop]: Abstraction has 4738 states and 7021 transitions. [2023-12-16 17:52:34,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:34,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4738 states and 7021 transitions. [2023-12-16 17:52:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 17:52:34,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:34,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:34,766 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 [2023-12-16 17:52:34,960 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 [2023-12-16 17:52:34,960 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:34,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash 704541015, now seen corresponding path program 1 times [2023-12-16 17:52:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:34,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124903396] [2023-12-16 17:52:34,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:34,962 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 [2023-12-16 17:52:34,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:34,963 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) [2023-12-16 17:52:34,980 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 [2023-12-16 17:52:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:35,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:52:35,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:35,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:35,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:35,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124903396] [2023-12-16 17:52:35,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124903396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:35,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:35,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:52:35,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750543131] [2023-12-16 17:52:35,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:35,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:52:35,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:35,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:52:35,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:52:35,105 INFO L87 Difference]: Start difference. First operand 4738 states and 7021 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:35,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:35,669 INFO L93 Difference]: Finished difference Result 12476 states and 18451 transitions. [2023-12-16 17:52:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 17:52:35,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-16 17:52:35,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:35,685 INFO L225 Difference]: With dead ends: 12476 [2023-12-16 17:52:35,686 INFO L226 Difference]: Without dead ends: 9071 [2023-12-16 17:52:35,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:52:35,691 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 1087 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:35,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 3334 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:35,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9071 states. [2023-12-16 17:52:35,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9071 to 6356. [2023-12-16 17:52:35,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6356 states, 6350 states have (on average 1.4737007874015748) internal successors, (9358), 6354 states have internal predecessors, (9358), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6356 states to 6356 states and 9363 transitions. [2023-12-16 17:52:35,945 INFO L78 Accepts]: Start accepts. Automaton has 6356 states and 9363 transitions. Word has length 63 [2023-12-16 17:52:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:35,945 INFO L495 AbstractCegarLoop]: Abstraction has 6356 states and 9363 transitions. [2023-12-16 17:52:35,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:35,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6356 states and 9363 transitions. [2023-12-16 17:52:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:52:35,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:35,950 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:35,956 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 [2023-12-16 17:52:36,152 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 [2023-12-16 17:52:36,152 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:36,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1376857847, now seen corresponding path program 1 times [2023-12-16 17:52:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:36,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088733003] [2023-12-16 17:52:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:36,153 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 [2023-12-16 17:52:36,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:36,155 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) [2023-12-16 17:52:36,168 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 [2023-12-16 17:52:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:36,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:36,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:36,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:36,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:36,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088733003] [2023-12-16 17:52:36,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088733003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:36,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:36,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474060722] [2023-12-16 17:52:36,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:36,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:36,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:36,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:36,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:36,275 INFO L87 Difference]: Start difference. First operand 6356 states and 9363 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:36,484 INFO L93 Difference]: Finished difference Result 10200 states and 15250 transitions. [2023-12-16 17:52:36,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:36,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-16 17:52:36,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:36,492 INFO L225 Difference]: With dead ends: 10200 [2023-12-16 17:52:36,492 INFO L226 Difference]: Without dead ends: 3900 [2023-12-16 17:52:36,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:36,499 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 336 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:36,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 621 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:36,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2023-12-16 17:52:36,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3530. [2023-12-16 17:52:36,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 3524 states have (on average 1.5173098751418843) internal successors, (5347), 3528 states have internal predecessors, (5347), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5352 transitions. [2023-12-16 17:52:36,614 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5352 transitions. Word has length 96 [2023-12-16 17:52:36,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:36,614 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 5352 transitions. [2023-12-16 17:52:36,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:36,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5352 transitions. [2023-12-16 17:52:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 17:52:36,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:36,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:36,623 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 [2023-12-16 17:52:36,822 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 [2023-12-16 17:52:36,823 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:36,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:36,823 INFO L85 PathProgramCache]: Analyzing trace with hash -555824062, now seen corresponding path program 1 times [2023-12-16 17:52:36,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:36,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140051277] [2023-12-16 17:52:36,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:36,824 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 [2023-12-16 17:52:36,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:36,825 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) [2023-12-16 17:52:36,829 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 [2023-12-16 17:52:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:36,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:36,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:52:36,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:36,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:36,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140051277] [2023-12-16 17:52:36,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140051277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:36,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:36,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:36,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144515206] [2023-12-16 17:52:36,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:36,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:36,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:36,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:36,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:36,929 INFO L87 Difference]: Start difference. First operand 3530 states and 5352 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:37,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:37,186 INFO L93 Difference]: Finished difference Result 8715 states and 13160 transitions. [2023-12-16 17:52:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:37,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-16 17:52:37,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:37,195 INFO L225 Difference]: With dead ends: 8715 [2023-12-16 17:52:37,196 INFO L226 Difference]: Without dead ends: 5103 [2023-12-16 17:52:37,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:37,200 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 278 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:37,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 910 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:37,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2023-12-16 17:52:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 5039. [2023-12-16 17:52:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5039 states, 5033 states have (on average 1.5014901649115835) internal successors, (7557), 5037 states have internal predecessors, (7557), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5039 states to 5039 states and 7562 transitions. [2023-12-16 17:52:37,386 INFO L78 Accepts]: Start accepts. Automaton has 5039 states and 7562 transitions. Word has length 135 [2023-12-16 17:52:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:37,387 INFO L495 AbstractCegarLoop]: Abstraction has 5039 states and 7562 transitions. [2023-12-16 17:52:37,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5039 states and 7562 transitions. [2023-12-16 17:52:37,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 17:52:37,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:37,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:37,401 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 [2023-12-16 17:52:37,595 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 [2023-12-16 17:52:37,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:37,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:37,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1177905419, now seen corresponding path program 1 times [2023-12-16 17:52:37,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:37,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644753349] [2023-12-16 17:52:37,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:37,597 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 [2023-12-16 17:52:37,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:37,598 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) [2023-12-16 17:52:37,601 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 [2023-12-16 17:52:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:37,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:37,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 17:52:37,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:37,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:37,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644753349] [2023-12-16 17:52:37,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644753349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:37,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:37,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:37,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032636926] [2023-12-16 17:52:37,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:37,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:37,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:37,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:37,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:37,707 INFO L87 Difference]: Start difference. First operand 5039 states and 7562 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:38,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:38,088 INFO L93 Difference]: Finished difference Result 13183 states and 19661 transitions. [2023-12-16 17:52:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:38,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-12-16 17:52:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:38,105 INFO L225 Difference]: With dead ends: 13183 [2023-12-16 17:52:38,105 INFO L226 Difference]: Without dead ends: 8245 [2023-12-16 17:52:38,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:38,115 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 340 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:38,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 990 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:38,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2023-12-16 17:52:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8196. [2023-12-16 17:52:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8196 states, 8190 states have (on average 1.433943833943834) internal successors, (11744), 8194 states have internal predecessors, (11744), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:38,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8196 states to 8196 states and 11749 transitions. [2023-12-16 17:52:38,391 INFO L78 Accepts]: Start accepts. Automaton has 8196 states and 11749 transitions. Word has length 143 [2023-12-16 17:52:38,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:38,391 INFO L495 AbstractCegarLoop]: Abstraction has 8196 states and 11749 transitions. [2023-12-16 17:52:38,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:38,391 INFO L276 IsEmpty]: Start isEmpty. Operand 8196 states and 11749 transitions. [2023-12-16 17:52:38,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 17:52:38,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:38,399 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:38,405 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 [2023-12-16 17:52:38,602 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 [2023-12-16 17:52:38,603 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:38,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:38,603 INFO L85 PathProgramCache]: Analyzing trace with hash -312566853, now seen corresponding path program 1 times [2023-12-16 17:52:38,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89577354] [2023-12-16 17:52:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:38,604 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 [2023-12-16 17:52:38,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:38,605 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) [2023-12-16 17:52:38,606 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 [2023-12-16 17:52:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:38,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:38,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-16 17:52:38,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:38,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:38,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89577354] [2023-12-16 17:52:38,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89577354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:38,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:38,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:38,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496013167] [2023-12-16 17:52:38,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:38,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:38,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:38,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:38,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:38,745 INFO L87 Difference]: Start difference. First operand 8196 states and 11749 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:38,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:38,968 INFO L93 Difference]: Finished difference Result 11874 states and 17190 transitions. [2023-12-16 17:52:38,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:38,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-16 17:52:38,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:38,975 INFO L225 Difference]: With dead ends: 11874 [2023-12-16 17:52:38,976 INFO L226 Difference]: Without dead ends: 3627 [2023-12-16 17:52:38,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:38,986 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 327 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:38,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 497 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2023-12-16 17:52:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3572. [2023-12-16 17:52:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 3566 states have (on average 1.367638810992709) internal successors, (4877), 3570 states have internal predecessors, (4877), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4882 transitions. [2023-12-16 17:52:39,149 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4882 transitions. Word has length 144 [2023-12-16 17:52:39,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:39,150 INFO L495 AbstractCegarLoop]: Abstraction has 3572 states and 4882 transitions. [2023-12-16 17:52:39,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4882 transitions. [2023-12-16 17:52:39,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 17:52:39,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:39,152 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:39,159 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 [2023-12-16 17:52:39,359 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 [2023-12-16 17:52:39,360 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:39,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash 673719498, now seen corresponding path program 1 times [2023-12-16 17:52:39,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:39,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939668516] [2023-12-16 17:52:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:39,361 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 [2023-12-16 17:52:39,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:39,362 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) [2023-12-16 17:52:39,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:52:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:39,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:39,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:52:39,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:39,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:39,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939668516] [2023-12-16 17:52:39,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939668516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:39,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:39,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:39,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089114351] [2023-12-16 17:52:39,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:39,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:39,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:39,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:39,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:39,538 INFO L87 Difference]: Start difference. First operand 3572 states and 4882 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:39,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:39,685 INFO L93 Difference]: Finished difference Result 6344 states and 8697 transitions. [2023-12-16 17:52:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:39,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2023-12-16 17:52:39,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:39,690 INFO L225 Difference]: With dead ends: 6344 [2023-12-16 17:52:39,690 INFO L226 Difference]: Without dead ends: 2808 [2023-12-16 17:52:39,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:39,696 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 256 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:39,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 391 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:39,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2023-12-16 17:52:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2624. [2023-12-16 17:52:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2618 states have (on average 1.3414820473644002) internal successors, (3512), 2622 states have internal predecessors, (3512), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 3517 transitions. [2023-12-16 17:52:39,788 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 3517 transitions. Word has length 150 [2023-12-16 17:52:39,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:39,789 INFO L495 AbstractCegarLoop]: Abstraction has 2624 states and 3517 transitions. [2023-12-16 17:52:39,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 3517 transitions. [2023-12-16 17:52:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 17:52:39,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:39,791 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:39,796 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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:39,995 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 [2023-12-16 17:52:39,995 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:39,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1981582076, now seen corresponding path program 1 times [2023-12-16 17:52:39,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:39,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121150895] [2023-12-16 17:52:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:39,996 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 [2023-12-16 17:52:39,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:39,997 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) [2023-12-16 17:52:39,998 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 [2023-12-16 17:52:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:40,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:52:40,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:52:40,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:52:40,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:40,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121150895] [2023-12-16 17:52:40,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121150895] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:40,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:40,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-16 17:52:40,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387902964] [2023-12-16 17:52:40,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:40,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:52:40,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:40,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:52:40,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:52:40,416 INFO L87 Difference]: Start difference. First operand 2624 states and 3517 transitions. Second operand has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:40,949 INFO L93 Difference]: Finished difference Result 8083 states and 10966 transitions. [2023-12-16 17:52:40,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 17:52:40,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-16 17:52:40,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:40,962 INFO L225 Difference]: With dead ends: 8083 [2023-12-16 17:52:40,962 INFO L226 Difference]: Without dead ends: 5647 [2023-12-16 17:52:40,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:52:40,968 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1733 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:40,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 2756 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:52:40,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5647 states. [2023-12-16 17:52:41,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5647 to 4801. [2023-12-16 17:52:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4801 states, 4795 states have (on average 1.3549530761209594) internal successors, (6497), 4799 states have internal predecessors, (6497), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4801 states to 4801 states and 6502 transitions. [2023-12-16 17:52:41,194 INFO L78 Accepts]: Start accepts. Automaton has 4801 states and 6502 transitions. Word has length 153 [2023-12-16 17:52:41,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:41,195 INFO L495 AbstractCegarLoop]: Abstraction has 4801 states and 6502 transitions. [2023-12-16 17:52:41,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:41,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4801 states and 6502 transitions. [2023-12-16 17:52:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 17:52:41,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:41,197 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:41,205 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 [2023-12-16 17:52:41,400 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 [2023-12-16 17:52:41,400 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:41,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash 512092272, now seen corresponding path program 1 times [2023-12-16 17:52:41,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:41,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972325964] [2023-12-16 17:52:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:41,401 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 [2023-12-16 17:52:41,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:41,402 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) [2023-12-16 17:52:41,403 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 [2023-12-16 17:52:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:41,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:52:41,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:52:41,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:52:41,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:41,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972325964] [2023-12-16 17:52:41,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972325964] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:41,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:41,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-16 17:52:41,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032136651] [2023-12-16 17:52:41,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:41,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:52:41,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:41,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:52:41,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:52:41,847 INFO L87 Difference]: Start difference. First operand 4801 states and 6502 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:42,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:42,370 INFO L93 Difference]: Finished difference Result 9816 states and 13293 transitions. [2023-12-16 17:52:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:52:42,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2023-12-16 17:52:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:42,381 INFO L225 Difference]: With dead ends: 9816 [2023-12-16 17:52:42,381 INFO L226 Difference]: Without dead ends: 5203 [2023-12-16 17:52:42,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:52:42,387 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 926 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:42,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 3839 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:52:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2023-12-16 17:52:42,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 4805. [2023-12-16 17:52:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4805 states, 4799 states have (on average 1.3546572202542195) internal successors, (6501), 4803 states have internal predecessors, (6501), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4805 states to 4805 states and 6506 transitions. [2023-12-16 17:52:42,615 INFO L78 Accepts]: Start accepts. Automaton has 4805 states and 6506 transitions. Word has length 156 [2023-12-16 17:52:42,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:42,616 INFO L495 AbstractCegarLoop]: Abstraction has 4805 states and 6506 transitions. [2023-12-16 17:52:42,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4805 states and 6506 transitions. [2023-12-16 17:52:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-12-16 17:52:42,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:42,619 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:42,624 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 [2023-12-16 17:52:42,823 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 [2023-12-16 17:52:42,823 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:42,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968908, now seen corresponding path program 1 times [2023-12-16 17:52:42,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:42,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433652110] [2023-12-16 17:52:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:42,825 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 [2023-12-16 17:52:42,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:42,826 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) [2023-12-16 17:52:42,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:52:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:42,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:52:42,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 10 proven. 187 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:52:43,271 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 10 proven. 187 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:52:43,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:43,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433652110] [2023-12-16 17:52:43,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433652110] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:43,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:43,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-12-16 17:52:43,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812492121] [2023-12-16 17:52:43,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:43,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:52:43,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:43,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:52:43,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:52:43,554 INFO L87 Difference]: Start difference. First operand 4805 states and 6506 transitions. Second operand has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:44,309 INFO L93 Difference]: Finished difference Result 10140 states and 13681 transitions. [2023-12-16 17:52:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-16 17:52:44,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2023-12-16 17:52:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:44,322 INFO L225 Difference]: With dead ends: 10140 [2023-12-16 17:52:44,322 INFO L226 Difference]: Without dead ends: 5523 [2023-12-16 17:52:44,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:52:44,329 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 1442 mSDsluCounter, 6825 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 7749 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:44,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 7749 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:52:44,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5523 states. [2023-12-16 17:52:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5523 to 4954. [2023-12-16 17:52:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 4948 states have (on average 1.350848827809216) internal successors, (6684), 4952 states have internal predecessors, (6684), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:44,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 6689 transitions. [2023-12-16 17:52:44,516 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 6689 transitions. Word has length 251 [2023-12-16 17:52:44,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:44,516 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 6689 transitions. [2023-12-16 17:52:44,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:44,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 6689 transitions. [2023-12-16 17:52:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-12-16 17:52:44,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:44,520 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:44,531 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 [2023-12-16 17:52:44,724 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 [2023-12-16 17:52:44,725 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:44,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2046780617, now seen corresponding path program 1 times [2023-12-16 17:52:44,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:44,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100370328] [2023-12-16 17:52:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:44,726 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 [2023-12-16 17:52:44,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:44,728 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) [2023-12-16 17:52:44,740 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 [2023-12-16 17:52:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:44,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:52:44,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 63 proven. 303 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:52:45,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:45,822 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 63 proven. 303 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:52:45,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:45,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100370328] [2023-12-16 17:52:45,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100370328] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:45,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:45,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 17:52:45,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141966094] [2023-12-16 17:52:45,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:45,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 17:52:45,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:45,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 17:52:45,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:52:45,825 INFO L87 Difference]: Start difference. First operand 4954 states and 6689 transitions. Second operand has 16 states, 16 states have (on average 38.3125) internal successors, (613), 16 states have internal predecessors, (613), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:46,661 INFO L93 Difference]: Finished difference Result 11484 states and 15552 transitions. [2023-12-16 17:52:46,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 17:52:46,662 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 38.3125) internal successors, (613), 16 states have internal predecessors, (613), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2023-12-16 17:52:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:46,674 INFO L225 Difference]: With dead ends: 11484 [2023-12-16 17:52:46,674 INFO L226 Difference]: Without dead ends: 6718 [2023-12-16 17:52:46,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:52:46,683 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 4583 mSDsluCounter, 8567 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 9787 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:46,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4583 Valid, 9787 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:52:46,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6718 states. [2023-12-16 17:52:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6718 to 5929. [2023-12-16 17:52:46,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5929 states, 5923 states have (on average 1.3542123923687321) internal successors, (8021), 5927 states have internal predecessors, (8021), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5929 states to 5929 states and 8026 transitions. [2023-12-16 17:52:46,927 INFO L78 Accepts]: Start accepts. Automaton has 5929 states and 8026 transitions. Word has length 344 [2023-12-16 17:52:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:46,928 INFO L495 AbstractCegarLoop]: Abstraction has 5929 states and 8026 transitions. [2023-12-16 17:52:46,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 38.3125) internal successors, (613), 16 states have internal predecessors, (613), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5929 states and 8026 transitions. [2023-12-16 17:52:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-16 17:52:46,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:46,931 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:46,938 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 [2023-12-16 17:52:47,136 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 [2023-12-16 17:52:47,136 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:47,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash -492424867, now seen corresponding path program 1 times [2023-12-16 17:52:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:47,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324606976] [2023-12-16 17:52:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:47,137 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 [2023-12-16 17:52:47,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:47,138 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) [2023-12-16 17:52:47,140 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 [2023-12-16 17:52:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:47,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:52:47,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 15 proven. 436 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:52:47,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 15 proven. 436 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:52:48,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:48,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324606976] [2023-12-16 17:52:48,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324606976] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:48,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:48,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-12-16 17:52:48,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500199441] [2023-12-16 17:52:48,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:48,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 17:52:48,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:48,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 17:52:48,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:52:48,011 INFO L87 Difference]: Start difference. First operand 5929 states and 8026 transitions. Second operand has 13 states, 13 states have (on average 26.076923076923077) internal successors, (339), 13 states have internal predecessors, (339), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:49,118 INFO L93 Difference]: Finished difference Result 12471 states and 16829 transitions. [2023-12-16 17:52:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 17:52:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 26.076923076923077) internal successors, (339), 13 states have internal predecessors, (339), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 347 [2023-12-16 17:52:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:49,132 INFO L225 Difference]: With dead ends: 12471 [2023-12-16 17:52:49,133 INFO L226 Difference]: Without dead ends: 6730 [2023-12-16 17:52:49,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2023-12-16 17:52:49,142 INFO L413 NwaCegarLoop]: 1315 mSDtfsCounter, 2002 mSDsluCounter, 12271 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 13586 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:49,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 13586 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:52:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2023-12-16 17:52:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6080. [2023-12-16 17:52:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6080 states, 6074 states have (on average 1.3510042805400067) internal successors, (8206), 6078 states have internal predecessors, (8206), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:49,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6080 states to 6080 states and 8211 transitions. [2023-12-16 17:52:49,446 INFO L78 Accepts]: Start accepts. Automaton has 6080 states and 8211 transitions. Word has length 347 [2023-12-16 17:52:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:49,448 INFO L495 AbstractCegarLoop]: Abstraction has 6080 states and 8211 transitions. [2023-12-16 17:52:49,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 26.076923076923077) internal successors, (339), 13 states have internal predecessors, (339), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:49,448 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states and 8211 transitions. [2023-12-16 17:52:49,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2023-12-16 17:52:49,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:49,454 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:49,463 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 [2023-12-16 17:52:49,660 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 [2023-12-16 17:52:49,661 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:49,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:49,661 INFO L85 PathProgramCache]: Analyzing trace with hash -431584582, now seen corresponding path program 1 times [2023-12-16 17:52:49,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:49,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127458364] [2023-12-16 17:52:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:49,662 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 [2023-12-16 17:52:49,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:49,664 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) [2023-12-16 17:52:49,664 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 [2023-12-16 17:52:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:49,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:49,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-12-16 17:52:49,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:49,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:49,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127458364] [2023-12-16 17:52:49,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127458364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:49,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:49,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:49,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099562311] [2023-12-16 17:52:49,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:49,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:49,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:49,873 INFO L87 Difference]: Start difference. First operand 6080 states and 8211 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:50,093 INFO L93 Difference]: Finished difference Result 8061 states and 10796 transitions. [2023-12-16 17:52:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:50,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 441 [2023-12-16 17:52:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:50,097 INFO L225 Difference]: With dead ends: 8061 [2023-12-16 17:52:50,097 INFO L226 Difference]: Without dead ends: 1863 [2023-12-16 17:52:50,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:50,102 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 139 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:50,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 374 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:50,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2023-12-16 17:52:50,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1253. [2023-12-16 17:52:50,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1249 states have (on average 1.1016813450760607) internal successors, (1376), 1251 states have internal predecessors, (1376), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1379 transitions. [2023-12-16 17:52:50,145 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1379 transitions. Word has length 441 [2023-12-16 17:52:50,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:50,146 INFO L495 AbstractCegarLoop]: Abstraction has 1253 states and 1379 transitions. [2023-12-16 17:52:50,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:50,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1379 transitions. [2023-12-16 17:52:50,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2023-12-16 17:52:50,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:50,150 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-12-16 17:52:50,155 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 (24)] Ended with exit code 0 [2023-12-16 17:52:50,353 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 [2023-12-16 17:52:50,353 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:50,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:50,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1294036730, now seen corresponding path program 1 times [2023-12-16 17:52:50,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:50,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442605001] [2023-12-16 17:52:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:50,355 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 [2023-12-16 17:52:50,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:50,356 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) [2023-12-16 17:52:50,372 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 [2023-12-16 17:52:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:50,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:52:50,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:50,981 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 201 proven. 609 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:52:50,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 201 proven. 609 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:52:51,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:51,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442605001] [2023-12-16 17:52:51,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442605001] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:51,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:51,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-16 17:52:51,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978363674] [2023-12-16 17:52:51,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:51,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-16 17:52:51,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:51,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-16 17:52:51,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:52:51,709 INFO L87 Difference]: Start difference. First operand 1253 states and 1379 transitions. Second operand has 20 states, 20 states have (on average 40.3) internal successors, (806), 20 states have internal predecessors, (806), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:52,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:52,387 INFO L93 Difference]: Finished difference Result 2206 states and 2469 transitions. [2023-12-16 17:52:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:52:52,388 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 40.3) internal successors, (806), 20 states have internal predecessors, (806), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 444 [2023-12-16 17:52:52,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:52,390 INFO L225 Difference]: With dead ends: 2206 [2023-12-16 17:52:52,390 INFO L226 Difference]: Without dead ends: 1788 [2023-12-16 17:52:52,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 868 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2023-12-16 17:52:52,391 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 1274 mSDsluCounter, 7966 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:52,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 8758 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:52:52,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2023-12-16 17:52:52,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1759. [2023-12-16 17:52:52,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1755 states have (on average 1.1196581196581197) internal successors, (1965), 1757 states have internal predecessors, (1965), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 1968 transitions. [2023-12-16 17:52:52,454 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 1968 transitions. Word has length 444 [2023-12-16 17:52:52,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:52,455 INFO L495 AbstractCegarLoop]: Abstraction has 1759 states and 1968 transitions. [2023-12-16 17:52:52,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 40.3) internal successors, (806), 20 states have internal predecessors, (806), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:52,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 1968 transitions. [2023-12-16 17:52:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-12-16 17:52:52,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:52,459 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:52,471 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 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:52,666 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 [2023-12-16 17:52:52,667 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:52,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:52,667 INFO L85 PathProgramCache]: Analyzing trace with hash -782781155, now seen corresponding path program 1 times [2023-12-16 17:52:52,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:52,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909616736] [2023-12-16 17:52:52,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:52,668 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 [2023-12-16 17:52:52,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:52,669 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-16 17:52:52,677 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 (26)] Waiting until timeout for monitored process [2023-12-16 17:52:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:52,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:52:52,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-12-16 17:52:52,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:52,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:52,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909616736] [2023-12-16 17:52:52,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909616736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:52,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:52,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:52:52,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041994006] [2023-12-16 17:52:52,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:52,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:52:52,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:52,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:52:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:52:52,914 INFO L87 Difference]: Start difference. First operand 1759 states and 1968 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:53,090 INFO L93 Difference]: Finished difference Result 2495 states and 2808 transitions. [2023-12-16 17:52:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:52:53,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 446 [2023-12-16 17:52:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:53,092 INFO L225 Difference]: With dead ends: 2495 [2023-12-16 17:52:53,092 INFO L226 Difference]: Without dead ends: 1772 [2023-12-16 17:52:53,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:52:53,093 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 226 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:53,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1424 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:53,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2023-12-16 17:52:53,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1753. [2023-12-16 17:52:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1749 states have (on average 1.115494568324757) internal successors, (1951), 1751 states have internal predecessors, (1951), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 1954 transitions. [2023-12-16 17:52:53,158 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 1954 transitions. Word has length 446 [2023-12-16 17:52:53,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:53,159 INFO L495 AbstractCegarLoop]: Abstraction has 1753 states and 1954 transitions. [2023-12-16 17:52:53,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:53,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 1954 transitions. [2023-12-16 17:52:53,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2023-12-16 17:52:53,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:53,162 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 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, 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, 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] [2023-12-16 17:52:53,167 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 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:53,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-16 17:52:53,367 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:53,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1528078224, now seen corresponding path program 1 times [2023-12-16 17:52:53,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:53,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432881505] [2023-12-16 17:52:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:53,369 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 [2023-12-16 17:52:53,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:53,370 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-16 17:52:53,370 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 (27)] Waiting until timeout for monitored process [2023-12-16 17:52:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:53,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:52:53,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-12-16 17:52:53,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:53,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:53,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432881505] [2023-12-16 17:52:53,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432881505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:53,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:53,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:52:53,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575499807] [2023-12-16 17:52:53,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:53,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:52:53,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:53,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:52:53,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:52:53,609 INFO L87 Difference]: Start difference. First operand 1753 states and 1954 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:53,726 INFO L93 Difference]: Finished difference Result 2443 states and 2719 transitions. [2023-12-16 17:52:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:52:53,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2023-12-16 17:52:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:53,729 INFO L225 Difference]: With dead ends: 2443 [2023-12-16 17:52:53,729 INFO L226 Difference]: Without dead ends: 1716 [2023-12-16 17:52:53,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:52:53,730 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 181 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:53,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 804 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:52:53,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2023-12-16 17:52:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1704. [2023-12-16 17:52:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1701 states have (on average 1.0905349794238683) internal successors, (1855), 1702 states have internal predecessors, (1855), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1857 transitions. [2023-12-16 17:52:53,811 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1857 transitions. Word has length 447 [2023-12-16 17:52:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:53,812 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 1857 transitions. [2023-12-16 17:52:53,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1857 transitions. [2023-12-16 17:52:53,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-16 17:52:53,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:53,815 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 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, 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:53,823 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 (27)] Ended with exit code 0 [2023-12-16 17:52:54,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-16 17:52:54,022 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:54,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:54,022 INFO L85 PathProgramCache]: Analyzing trace with hash 724651279, now seen corresponding path program 1 times [2023-12-16 17:52:54,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:54,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458963055] [2023-12-16 17:52:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:54,023 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 [2023-12-16 17:52:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:54,024 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-16 17:52:54,025 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 (28)] Waiting until timeout for monitored process [2023-12-16 17:52:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:54,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 17:52:54,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 93 proven. 253 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-12-16 17:52:55,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:55,718 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 25 proven. 321 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-12-16 17:52:55,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:55,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458963055] [2023-12-16 17:52:55,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458963055] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:55,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:55,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 24 [2023-12-16 17:52:55,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691961672] [2023-12-16 17:52:55,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:55,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 17:52:55,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:55,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 17:52:55,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:52:55,721 INFO L87 Difference]: Start difference. First operand 1704 states and 1857 transitions. Second operand has 24 states, 24 states have (on average 15.0) internal successors, (360), 24 states have internal predecessors, (360), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:56,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:56,548 INFO L93 Difference]: Finished difference Result 1718 states and 1870 transitions. [2023-12-16 17:52:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 17:52:56,549 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 24 states have internal predecessors, (360), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 501 [2023-12-16 17:52:56,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:56,552 INFO L225 Difference]: With dead ends: 1718 [2023-12-16 17:52:56,552 INFO L226 Difference]: Without dead ends: 1715 [2023-12-16 17:52:56,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1019 GetRequests, 980 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=191, Invalid=1449, Unknown=0, NotChecked=0, Total=1640 [2023-12-16 17:52:56,553 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 668 mSDsluCounter, 6469 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 6869 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:56,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 6869 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:52:56,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-12-16 17:52:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1704. [2023-12-16 17:52:56,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1701 states have (on average 1.08994708994709) internal successors, (1854), 1702 states have internal predecessors, (1854), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:56,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1856 transitions. [2023-12-16 17:52:56,616 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1856 transitions. Word has length 501 [2023-12-16 17:52:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:56,617 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 1856 transitions. [2023-12-16 17:52:56,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 24 states have internal predecessors, (360), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1856 transitions. [2023-12-16 17:52:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-12-16 17:52:56,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:56,621 INFO L195 NwaCegarLoop]: trace histogram [11, 8, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:56,626 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 (28)] Ended with exit code 0 [2023-12-16 17:52:56,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-16 17:52:56,823 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:56,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:56,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1933207870, now seen corresponding path program 1 times [2023-12-16 17:52:56,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:56,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016291662] [2023-12-16 17:52:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:56,825 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 [2023-12-16 17:52:56,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:56,826 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-16 17:52:56,826 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 (29)] Waiting until timeout for monitored process [2023-12-16 17:52:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:57,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:52:57,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 271 proven. 45 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-12-16 17:52:57,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:52:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 271 proven. 45 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-12-16 17:52:57,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:57,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016291662] [2023-12-16 17:52:57,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016291662] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:52:57,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:52:57,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-16 17:52:57,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2574662] [2023-12-16 17:52:57,366 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:52:57,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:52:57,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:57,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:52:57,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:52:57,368 INFO L87 Difference]: Start difference. First operand 1704 states and 1856 transitions. Second operand has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:57,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:57,640 INFO L93 Difference]: Finished difference Result 2205 states and 2403 transitions. [2023-12-16 17:52:57,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:52:57,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 547 [2023-12-16 17:52:57,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:57,643 INFO L225 Difference]: With dead ends: 2205 [2023-12-16 17:52:57,643 INFO L226 Difference]: Without dead ends: 1715 [2023-12-16 17:52:57,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1088 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:52:57,645 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 396 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:57,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 2382 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:57,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-12-16 17:52:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1700. [2023-12-16 17:52:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1697 states have (on average 1.0854449027695934) internal successors, (1842), 1698 states have internal predecessors, (1842), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 1844 transitions. [2023-12-16 17:52:57,746 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 1844 transitions. Word has length 547 [2023-12-16 17:52:57,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:57,747 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 1844 transitions. [2023-12-16 17:52:57,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:52:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 1844 transitions. [2023-12-16 17:52:57,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2023-12-16 17:52:57,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:57,753 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 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, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:57,762 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:57,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-16 17:52:57,960 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:57,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash -434578402, now seen corresponding path program 1 times [2023-12-16 17:52:57,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:57,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320205857] [2023-12-16 17:52:57,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:57,961 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 [2023-12-16 17:52:57,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:57,963 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-16 17:52:57,970 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 (30)] Waiting until timeout for monitored process [2023-12-16 17:52:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:58,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 17:52:58,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 235 proven. 663 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-16 17:52:59,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:53:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 30 proven. 868 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-16 17:53:00,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:00,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320205857] [2023-12-16 17:53:00,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320205857] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:53:00,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:53:00,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 30 [2023-12-16 17:53:00,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693687854] [2023-12-16 17:53:00,312 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:53:00,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-16 17:53:00,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-16 17:53:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2023-12-16 17:53:00,314 INFO L87 Difference]: Start difference. First operand 1700 states and 1844 transitions. Second operand has 30 states, 30 states have (on average 21.633333333333333) internal successors, (649), 30 states have internal predecessors, (649), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:01,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:01,629 INFO L93 Difference]: Finished difference Result 1713 states and 1856 transitions. [2023-12-16 17:53:01,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-16 17:53:01,630 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 21.633333333333333) internal successors, (649), 30 states have internal predecessors, (649), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 603 [2023-12-16 17:53:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:01,631 INFO L225 Difference]: With dead ends: 1713 [2023-12-16 17:53:01,631 INFO L226 Difference]: Without dead ends: 1710 [2023-12-16 17:53:01,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1229 GetRequests, 1178 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=265, Invalid=2491, Unknown=0, NotChecked=0, Total=2756 [2023-12-16 17:53:01,633 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 1060 mSDsluCounter, 12403 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 12997 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:01,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 12997 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:53:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-12-16 17:53:01,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1700. [2023-12-16 17:53:01,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1697 states have (on average 1.084855627578079) internal successors, (1841), 1698 states have internal predecessors, (1841), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:01,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 1843 transitions. [2023-12-16 17:53:01,695 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 1843 transitions. Word has length 603 [2023-12-16 17:53:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:01,696 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 1843 transitions. [2023-12-16 17:53:01,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 21.633333333333333) internal successors, (649), 30 states have internal predecessors, (649), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:01,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 1843 transitions. [2023-12-16 17:53:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2023-12-16 17:53:01,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:01,699 INFO L195 NwaCegarLoop]: trace histogram [13, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:01,705 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 (30)] Ended with exit code 0 [2023-12-16 17:53:01,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-16 17:53:01,901 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:01,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1332213261, now seen corresponding path program 1 times [2023-12-16 17:53:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:01,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792712071] [2023-12-16 17:53:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:01,902 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 [2023-12-16 17:53:01,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:01,903 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-16 17:53:01,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 17:53:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:02,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:53:02,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:02,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 457 proven. 200 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2023-12-16 17:53:02,468 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:53:02,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 457 proven. 200 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2023-12-16 17:53:02,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:02,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792712071] [2023-12-16 17:53:02,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792712071] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:53:02,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:53:02,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-12-16 17:53:02,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036001423] [2023-12-16 17:53:02,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:53:02,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:53:02,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:02,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:53:02,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:53:02,715 INFO L87 Difference]: Start difference. First operand 1700 states and 1843 transitions. Second operand has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:03,147 INFO L93 Difference]: Finished difference Result 2009 states and 2176 transitions. [2023-12-16 17:53:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 17:53:03,148 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 649 [2023-12-16 17:53:03,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:03,151 INFO L225 Difference]: With dead ends: 2009 [2023-12-16 17:53:03,151 INFO L226 Difference]: Without dead ends: 1715 [2023-12-16 17:53:03,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1310 GetRequests, 1292 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:53:03,152 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 581 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 4342 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:03,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 4342 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:03,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-12-16 17:53:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1698. [2023-12-16 17:53:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1695 states have (on average 1.08023598820059) internal successors, (1831), 1696 states have internal predecessors, (1831), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 1833 transitions. [2023-12-16 17:53:03,250 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 1833 transitions. Word has length 649 [2023-12-16 17:53:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:03,250 INFO L495 AbstractCegarLoop]: Abstraction has 1698 states and 1833 transitions. [2023-12-16 17:53:03,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 1833 transitions. [2023-12-16 17:53:03,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2023-12-16 17:53:03,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:03,256 INFO L195 NwaCegarLoop]: trace histogram [14, 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, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:03,264 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 (31)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:03,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-16 17:53:03,464 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:03,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:03,464 INFO L85 PathProgramCache]: Analyzing trace with hash -84862364, now seen corresponding path program 1 times [2023-12-16 17:53:03,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:03,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85061266] [2023-12-16 17:53:03,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:03,466 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 [2023-12-16 17:53:03,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:03,467 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-16 17:53:03,478 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 (32)] Waiting until timeout for monitored process [2023-12-16 17:53:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:03,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 17:53:03,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 288 proven. 1174 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-16 17:53:05,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:53:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 35 proven. 1427 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-16 17:53:06,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85061266] [2023-12-16 17:53:06,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85061266] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:53:06,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:53:06,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 36 [2023-12-16 17:53:06,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134535062] [2023-12-16 17:53:06,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:53:06,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-16 17:53:06,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:06,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-16 17:53:06,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1167, Unknown=0, NotChecked=0, Total=1260 [2023-12-16 17:53:06,403 INFO L87 Difference]: Start difference. First operand 1698 states and 1833 transitions. Second operand has 36 states, 36 states have (on average 26.22222222222222) internal successors, (944), 36 states have internal predecessors, (944), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:08,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:08,329 INFO L93 Difference]: Finished difference Result 1715 states and 1849 transitions. [2023-12-16 17:53:08,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-16 17:53:08,330 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 26.22222222222222) internal successors, (944), 36 states have internal predecessors, (944), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 706 [2023-12-16 17:53:08,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:08,332 INFO L225 Difference]: With dead ends: 1715 [2023-12-16 17:53:08,332 INFO L226 Difference]: Without dead ends: 1712 [2023-12-16 17:53:08,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1440 GetRequests, 1378 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=328, Invalid=3704, Unknown=0, NotChecked=0, Total=4032 [2023-12-16 17:53:08,333 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 1355 mSDsluCounter, 19868 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 20690 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:08,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 20690 Invalid, 2070 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 17:53:08,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2023-12-16 17:53:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1698. [2023-12-16 17:53:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1695 states have (on average 1.079646017699115) internal successors, (1830), 1696 states have internal predecessors, (1830), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 1832 transitions. [2023-12-16 17:53:08,401 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 1832 transitions. Word has length 706 [2023-12-16 17:53:08,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:08,401 INFO L495 AbstractCegarLoop]: Abstraction has 1698 states and 1832 transitions. [2023-12-16 17:53:08,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 26.22222222222222) internal successors, (944), 36 states have internal predecessors, (944), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 1832 transitions. [2023-12-16 17:53:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2023-12-16 17:53:08,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:08,406 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:08,413 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 (32)] Ended with exit code 0 [2023-12-16 17:53:08,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-16 17:53:08,607 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:08,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:08,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1592404435, now seen corresponding path program 1 times [2023-12-16 17:53:08,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:08,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722573117] [2023-12-16 17:53:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:08,610 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 [2023-12-16 17:53:08,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:08,611 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-16 17:53:08,611 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 (33)] Waiting until timeout for monitored process [2023-12-16 17:53:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:08,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:53:08,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1767 backedges. 643 proven. 466 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2023-12-16 17:53:09,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:53:09,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1767 backedges. 643 proven. 466 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2023-12-16 17:53:09,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:09,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722573117] [2023-12-16 17:53:09,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722573117] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:53:09,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:53:09,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-12-16 17:53:09,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382022418] [2023-12-16 17:53:09,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:53:09,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 17:53:09,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:09,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 17:53:09,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:53:09,673 INFO L87 Difference]: Start difference. First operand 1698 states and 1832 transitions. Second operand has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:10,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:10,231 INFO L93 Difference]: Finished difference Result 1811 states and 1948 transitions. [2023-12-16 17:53:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 17:53:10,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 752 [2023-12-16 17:53:10,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:10,234 INFO L225 Difference]: With dead ends: 1811 [2023-12-16 17:53:10,234 INFO L226 Difference]: Without dead ends: 1713 [2023-12-16 17:53:10,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1520 GetRequests, 1498 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:53:10,235 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 758 mSDsluCounter, 6347 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 7025 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:10,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 7025 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:53:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2023-12-16 17:53:10,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1697. [2023-12-16 17:53:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.0749262536873156) internal successors, (1822), 1695 states have internal predecessors, (1822), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:10,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1823 transitions. [2023-12-16 17:53:10,317 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1823 transitions. Word has length 752 [2023-12-16 17:53:10,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:10,318 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 1823 transitions. [2023-12-16 17:53:10,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:10,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1823 transitions. [2023-12-16 17:53:10,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2023-12-16 17:53:10,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:10,324 INFO L195 NwaCegarLoop]: trace histogram [16, 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, 7, 7, 7, 7, 7, 7, 7, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:10,332 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 (33)] Ended with exit code 0 [2023-12-16 17:53:10,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-16 17:53:10,527 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:10,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1107816856, now seen corresponding path program 1 times [2023-12-16 17:53:10,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:10,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164679711] [2023-12-16 17:53:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:10,528 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 [2023-12-16 17:53:10,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:10,529 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-16 17:53:10,530 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 (34)] Waiting until timeout for monitored process [2023-12-16 17:53:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:10,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-16 17:53:10,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 249 proven. 1784 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:53:12,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:53:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 40 proven. 1993 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:53:13,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:13,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164679711] [2023-12-16 17:53:13,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164679711] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:53:13,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:53:13,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 42 [2023-12-16 17:53:13,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282484030] [2023-12-16 17:53:13,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:53:13,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-16 17:53:13,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-16 17:53:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1611, Unknown=0, NotChecked=0, Total=1722 [2023-12-16 17:53:13,985 INFO L87 Difference]: Start difference. First operand 1697 states and 1823 transitions. Second operand has 42 states, 42 states have (on average 28.571428571428573) internal successors, (1200), 42 states have internal predecessors, (1200), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:16,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:16,343 INFO L93 Difference]: Finished difference Result 1713 states and 1839 transitions. [2023-12-16 17:53:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-16 17:53:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 28.571428571428573) internal successors, (1200), 42 states have internal predecessors, (1200), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 810 [2023-12-16 17:53:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:16,345 INFO L225 Difference]: With dead ends: 1713 [2023-12-16 17:53:16,345 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 17:53:16,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1655 GetRequests, 1580 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=406, Invalid=5446, Unknown=0, NotChecked=0, Total=5852 [2023-12-16 17:53:16,347 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 1481 mSDsluCounter, 25935 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 26920 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:16,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 26920 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 17:53:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 17:53:16,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 17:53:16,348 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) [2023-12-16 17:53:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 17:53:16,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 810 [2023-12-16 17:53:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:16,348 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 17:53:16,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 28.571428571428573) internal successors, (1200), 42 states have internal predecessors, (1200), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 17:53:16,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 17:53:16,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:53:16,361 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 (34)] Ended with exit code 0 [2023-12-16 17:53:16,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-16 17:53:16,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-16 17:53:28,704 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:53:28,705 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-21-8-5-7-3-7-3-5-5-5-5-7-5-7-4-7-3-5-5-7-3-5-3-5-5-7-2-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-50-9-5-10-5-8-5-7-5-7-5-7-5-7-5-7-5-7-5-7-5-7-3-5-5-7-2-4-2-4-1 context. [2023-12-16 17:53:28,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 17:53:28,710 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-16 17:53:28,711 INFO L158 Benchmark]: Toolchain (without parser) took 62745.71ms. Allocated memory was 191.9MB in the beginning and 895.5MB in the end (delta: 703.6MB). Free memory was 133.3MB in the beginning and 567.8MB in the end (delta: -434.5MB). Peak memory consumption was 270.6MB. Max. memory is 8.0GB. [2023-12-16 17:53:28,712 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 191.9MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:53:28,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.05ms. Allocated memory is still 191.9MB. Free memory was 132.9MB in the beginning and 110.6MB in the end (delta: 22.4MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-16 17:53:28,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.65ms. Allocated memory is still 191.9MB. Free memory was 110.6MB in the beginning and 107.1MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:53:28,712 INFO L158 Benchmark]: Boogie Preprocessor took 98.93ms. Allocated memory is still 191.9MB. Free memory was 107.1MB in the beginning and 102.5MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:53:28,713 INFO L158 Benchmark]: RCFGBuilder took 1031.95ms. Allocated memory was 191.9MB in the beginning and 345.0MB in the end (delta: 153.1MB). Free memory was 102.2MB in the beginning and 256.7MB in the end (delta: -154.5MB). Peak memory consumption was 17.6MB. Max. memory is 8.0GB. [2023-12-16 17:53:28,714 INFO L158 Benchmark]: TraceAbstraction took 61174.60ms. Allocated memory was 345.0MB in the beginning and 895.5MB in the end (delta: 550.5MB). Free memory was 255.7MB in the beginning and 567.8MB in the end (delta: -312.2MB). Peak memory consumption was 238.3MB. Max. memory is 8.0GB. [2023-12-16 17:53:28,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 191.9MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 375.05ms. Allocated memory is still 191.9MB. Free memory was 132.9MB in the beginning and 110.6MB in the end (delta: 22.4MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.65ms. Allocated memory is still 191.9MB. Free memory was 110.6MB in the beginning and 107.1MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.93ms. Allocated memory is still 191.9MB. Free memory was 107.1MB in the beginning and 102.5MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1031.95ms. Allocated memory was 191.9MB in the beginning and 345.0MB in the end (delta: 153.1MB). Free memory was 102.2MB in the beginning and 256.7MB in the end (delta: -154.5MB). Peak memory consumption was 17.6MB. Max. memory is 8.0GB. * TraceAbstraction took 61174.60ms. Allocated memory was 345.0MB in the beginning and 895.5MB in the end (delta: 550.5MB). Free memory was 255.7MB in the beginning and 567.8MB in the end (delta: -312.2MB). Peak memory consumption was 238.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-7-11-3-8-3-6-3-5-2-5-2-7-2-3-2-6-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-16-11-3-8-3-6-3-5-2-5-2-7-2-3-2-6-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown