/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-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-26 02:58:49,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-26 02:58:49,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-26 02:58:49,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-26 02:58:49,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-26 02:58:49,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-26 02:58:49,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-26 02:58:49,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-26 02:58:49,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-26 02:58:49,798 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-26 02:58:49,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-26 02:58:49,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-26 02:58:49,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-26 02:58:49,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-26 02:58:49,800 INFO L153 SettingsManager]: * Use SBE=true [2023-12-26 02:58:49,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-26 02:58:49,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-26 02:58:49,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-26 02:58:49,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-26 02:58:49,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-26 02:58:49,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-26 02:58:49,803 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-26 02:58:49,803 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-26 02:58:49,803 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-26 02:58:49,803 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-26 02:58:49,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-26 02:58:49,804 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-26 02:58:49,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-26 02:58:49,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-26 02:58:49,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-26 02:58:49,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-26 02:58:49,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 02:58:49,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-26 02:58:49,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-26 02:58:49,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-26 02:58:49,807 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-26 02:58:49,807 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-26 02:58:49,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-26 02:58:49,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-26 02:58:49,808 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-26 02:58:49,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-26 02:58:49,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-26 02:58:49,809 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-26 02:58:49,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-26 02:58:49,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-26 02:58:50,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-26 02:58:50,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-26 02:58:50,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-26 02:58:50,006 INFO L274 PluginConnector]: CDTParser initialized [2023-12-26 02:58:50,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c [2023-12-26 02:58:51,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-26 02:58:51,500 INFO L384 CDTParser]: Found 1 translation units. [2023-12-26 02:58:51,501 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c [2023-12-26 02:58:51,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194023ea9/bf57dede5c54442aaa000f7dcfbc3b1e/FLAG1e0cd1ec4 [2023-12-26 02:58:51,544 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194023ea9/bf57dede5c54442aaa000f7dcfbc3b1e [2023-12-26 02:58:51,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-26 02:58:51,549 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-26 02:58:51,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-26 02:58:51,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-26 02:58:51,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-26 02:58:51,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 02:58:51" (1/1) ... [2023-12-26 02:58:51,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf60147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:51, skipping insertion in model container [2023-12-26 02:58:51,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 02:58:51" (1/1) ... [2023-12-26 02:58:51,626 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-26 02:58:51,792 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c[1271,1284] [2023-12-26 02:58:52,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 02:58:52,334 INFO L202 MainTranslator]: Completed pre-run [2023-12-26 02:58:52,345 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c[1271,1284] [2023-12-26 02:58:52,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 02:58:52,537 INFO L206 MainTranslator]: Completed translation [2023-12-26 02:58:52,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52 WrapperNode [2023-12-26 02:58:52,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-26 02:58:52,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-26 02:58:52,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-26 02:58:52,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-26 02:58:52,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:52,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:52,768 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3876 [2023-12-26 02:58:52,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-26 02:58:52,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-26 02:58:52,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-26 02:58:52,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-26 02:58:52,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:52,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:52,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:52,888 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]. [2023-12-26 02:58:52,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:52,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:52,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:53,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:53,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:53,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:53,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-26 02:58:53,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-26 02:58:53,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-26 02:58:53,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-26 02:58:53,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (1/1) ... [2023-12-26 02:58:53,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 02:58:53,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-26 02:58:53,113 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) [2023-12-26 02:58:53,139 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 [2023-12-26 02:58:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-26 02:58:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-26 02:58:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-26 02:58:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-26 02:58:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-26 02:58:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-26 02:58:53,719 INFO L241 CfgBuilder]: Building ICFG [2023-12-26 02:58:53,721 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-26 02:58:57,522 INFO L282 CfgBuilder]: Performing block encoding [2023-12-26 02:58:57,692 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-26 02:58:57,692 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-26 02:58:57,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 02:58:57 BoogieIcfgContainer [2023-12-26 02:58:57,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-26 02:58:57,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-26 02:58:57,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-26 02:58:57,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-26 02:58:57,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 02:58:51" (1/3) ... [2023-12-26 02:58:57,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8bb02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 02:58:57, skipping insertion in model container [2023-12-26 02:58:57,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 02:58:52" (2/3) ... [2023-12-26 02:58:57,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8bb02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 02:58:57, skipping insertion in model container [2023-12-26 02:58:57,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 02:58:57" (3/3) ... [2023-12-26 02:58:57,700 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w16_d32_e0.c [2023-12-26 02:58:57,715 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-26 02:58:57,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-26 02:58:57,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-26 02:58:57,763 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;@3c46ad82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-26 02:58:57,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-26 02:58:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-26 02:58:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-26 02:58:57,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 02:58:57,777 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-26 02:58:57,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 02:58:57,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 02:58:57,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1229239407, now seen corresponding path program 1 times [2023-12-26 02:58:57,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 02:58:57,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67144113] [2023-12-26 02:58:57,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 02:58:57,806 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 [2023-12-26 02:58:57,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 02:58:57,808 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) [2023-12-26 02:58:57,815 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 [2023-12-26 02:58:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 02:58:58,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-26 02:58:58,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 02:58:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-26 02:58:58,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 02:58:58,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 02:58:58,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67144113] [2023-12-26 02:58:58,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67144113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 02:58:58,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 02:58:58,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-26 02:58:59,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364516538] [2023-12-26 02:58:59,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 02:58:59,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-26 02:58:59,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 02:58:59,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-26 02:58:59,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-26 02:58:59,027 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-26 02:58:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 02:58:59,078 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2023-12-26 02:58:59,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-26 02:58:59,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 64 [2023-12-26 02:58:59,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 02:58:59,090 INFO L225 Difference]: With dead ends: 61 [2023-12-26 02:58:59,091 INFO L226 Difference]: Without dead ends: 30 [2023-12-26 02:58:59,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-26 02:58:59,096 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-26 02:58:59,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-26 02:58:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-26 02:58:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-26 02:58:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-26 02:58:59,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-12-26 02:58:59,127 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 64 [2023-12-26 02:58:59,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 02:58:59,127 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-12-26 02:58:59,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-26 02:58:59,128 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-12-26 02:58:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-26 02:58:59,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 02:58:59,130 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-26 02:58:59,146 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 [2023-12-26 02:58:59,346 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 [2023-12-26 02:58:59,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 02:58:59,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 02:58:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -148556931, now seen corresponding path program 1 times [2023-12-26 02:58:59,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 02:58:59,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977041114] [2023-12-26 02:58:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 02:58:59,350 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 [2023-12-26 02:58:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 02:58:59,351 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) [2023-12-26 02:58:59,374 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 [2023-12-26 02:59:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 02:59:01,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-26 02:59:01,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 02:59:01,687 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-26 02:59:01,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 02:59:01,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 02:59:01,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977041114] [2023-12-26 02:59:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977041114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 02:59:01,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 02:59:01,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-26 02:59:01,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499951578] [2023-12-26 02:59:01,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 02:59:01,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-26 02:59:01,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 02:59:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-26 02:59:01,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-26 02:59:01,695 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-26 02:59:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 02:59:02,252 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2023-12-26 02:59:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 02:59:02,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2023-12-26 02:59:02,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 02:59:02,253 INFO L225 Difference]: With dead ends: 55 [2023-12-26 02:59:02,253 INFO L226 Difference]: Without dead ends: 53 [2023-12-26 02:59:02,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-26 02:59:02,255 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-26 02:59:02,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 75 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-26 02:59:02,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-26 02:59:02,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2023-12-26 02:59:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-26 02:59:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2023-12-26 02:59:02,267 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 64 [2023-12-26 02:59:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 02:59:02,268 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2023-12-26 02:59:02,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-26 02:59:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-12-26 02:59:02,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-26 02:59:02,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 02:59:02,271 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-26 02:59:02,291 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 [2023-12-26 02:59:02,491 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 [2023-12-26 02:59:02,492 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 02:59:02,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 02:59:02,493 INFO L85 PathProgramCache]: Analyzing trace with hash -438810163, now seen corresponding path program 1 times [2023-12-26 02:59:02,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 02:59:02,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18965316] [2023-12-26 02:59:02,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 02:59:02,497 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 [2023-12-26 02:59:02,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 02:59:02,499 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) [2023-12-26 02:59:02,513 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 [2023-12-26 02:59:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 02:59:18,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 4590 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-26 02:59:18,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 02:59:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 18 proven. 61 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-26 02:59:19,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 02:59:19,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 02:59:19,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18965316] [2023-12-26 02:59:19,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18965316] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 02:59:19,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1028614288] [2023-12-26 02:59:19,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 02:59:19,793 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-26 02:59:19,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-26 02:59:19,800 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-26 02:59:19,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-26 02:59:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 02:59:23,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 4590 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-26 02:59:23,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 02:59:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 18 proven. 61 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-26 02:59:23,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 02:59:24,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1028614288] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 02:59:24,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 02:59:24,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-26 02:59:24,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633846767] [2023-12-26 02:59:24,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 02:59:24,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-26 02:59:24,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 02:59:24,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-26 02:59:24,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-12-26 02:59:24,031 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 13 states have internal predecessors, (58), 8 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 6 states have call predecessors, (40), 8 states have call successors, (40) [2023-12-26 02:59:25,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 02:59:25,875 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2023-12-26 02:59:25,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-26 02:59:25,875 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 13 states have internal predecessors, (58), 8 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 6 states have call predecessors, (40), 8 states have call successors, (40) Word has length 127 [2023-12-26 02:59:25,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 02:59:25,877 INFO L225 Difference]: With dead ends: 78 [2023-12-26 02:59:25,877 INFO L226 Difference]: Without dead ends: 76 [2023-12-26 02:59:25,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2023-12-26 02:59:25,879 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 34 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-26 02:59:25,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 171 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-26 02:59:25,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-26 02:59:25,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2023-12-26 02:59:25,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-26 02:59:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2023-12-26 02:59:25,898 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 127 [2023-12-26 02:59:25,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 02:59:25,898 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2023-12-26 02:59:25,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 13 states have internal predecessors, (58), 8 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 6 states have call predecessors, (40), 8 states have call successors, (40) [2023-12-26 02:59:25,899 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2023-12-26 02:59:25,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-26 02:59:25,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 02:59:25,901 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-26 02:59:25,936 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 [2023-12-26 02:59:26,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-26 02:59:26,313 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-26 02:59:26,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 02:59:26,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 02:59:26,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1049908867, now seen corresponding path program 2 times [2023-12-26 02:59:26,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 02:59:26,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058243197] [2023-12-26 02:59:26,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 02:59:26,318 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 [2023-12-26 02:59:26,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 02:59:26,319 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) [2023-12-26 02:59:26,320 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 [2023-12-26 03:00:11,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 03:00:11,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 03:00:11,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 7749 conjuncts, 217 conjunts are in the unsatisfiable core [2023-12-26 03:00:11,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:00:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 234 proven. 208 refuted. 0 times theorem prover too weak. 1365 trivial. 0 not checked. [2023-12-26 03:00:28,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:00:28,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:00:28,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058243197] [2023-12-26 03:00:28,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058243197] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:00:28,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [369028157] [2023-12-26 03:00:28,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 03:00:28,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-26 03:00:28,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-26 03:00:28,882 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-26 03:00:28,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-26 03:00:34,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 03:00:34,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 03:00:34,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 7749 conjuncts, 204 conjunts are in the unsatisfiable core [2023-12-26 03:00:34,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:02:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 198 proven. 181 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2023-12-26 03:02:17,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:02:17,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [369028157] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:02:17,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 03:02:17,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 31 [2023-12-26 03:02:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257742419] [2023-12-26 03:02:17,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 03:02:17,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-26 03:02:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:02:17,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-26 03:02:17,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=909, Unknown=23, NotChecked=0, Total=1056 [2023-12-26 03:02:17,873 INFO L87 Difference]: Start difference. First operand 75 states and 104 transitions. Second operand has 31 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 29 states have internal predecessors, (71), 19 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 13 states have call predecessors, (50), 19 states have call successors, (50) [2023-12-26 03:02:22,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:26,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:29,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:35,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:39,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:44,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:48,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:52,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:02:56,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:01,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:10,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:12,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:32,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:36,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:40,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:45,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:03:50,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:04:14,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:04:44,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:04:48,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:04:52,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:04:56,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:05:37,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:05:42,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:05:46,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:05:49,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:06,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:08,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:13,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:17,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:19,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:51,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:55,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:07:59,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:03,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:07,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:11,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:15,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:03,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:07,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:11,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:15,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:57,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:01,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:05,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:27,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:32,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:36,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:40,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:45,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:49,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:53,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:57,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:11:01,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:11:43,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:11:47,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:11:52,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:11:55,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:04,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:08,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:12,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:14,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:18,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:22,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:26,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:12:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 03:12:27,638 INFO L93 Difference]: Finished difference Result 103 states and 142 transitions. [2023-12-26 03:12:27,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-26 03:12:27,661 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 29 states have internal predecessors, (71), 19 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 13 states have call predecessors, (50), 19 states have call successors, (50) Word has length 190 [2023-12-26 03:12:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 03:12:27,665 INFO L225 Difference]: With dead ends: 103 [2023-12-26 03:12:27,665 INFO L226 Difference]: Without dead ends: 101 [2023-12-26 03:12:27,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 453.1s TimeCoverageRelationStatistics Valid=463, Invalid=2415, Unknown=92, NotChecked=0, Total=2970 [2023-12-26 03:12:27,669 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 106 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 68 mSolverCounterUnsat, 56 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 261.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 56 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 265.6s IncrementalHoareTripleChecker+Time [2023-12-26 03:12:27,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 543 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1136 Invalid, 56 Unknown, 0 Unchecked, 265.6s Time] [2023-12-26 03:12:27,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-26 03:12:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2023-12-26 03:12:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 56 states have internal predecessors, (57), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-26 03:12:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2023-12-26 03:12:27,715 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 190 [2023-12-26 03:12:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 03:12:27,716 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2023-12-26 03:12:27,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 29 states have internal predecessors, (71), 19 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 13 states have call predecessors, (50), 19 states have call successors, (50) [2023-12-26 03:12:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2023-12-26 03:12:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-26 03:12:27,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:12:27,721 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2023-12-26 03:12:27,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-26 03:12:27,979 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 [2023-12-26 03:12:28,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-26 03:12:28,126 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:12:28,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:12:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1566895155, now seen corresponding path program 3 times [2023-12-26 03:12:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:12:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000972661] [2023-12-26 03:12:28,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-26 03:12:28,133 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 [2023-12-26 03:12:28,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:12:28,134 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) [2023-12-26 03:12:28,134 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 Received shutdown request... [2023-12-26 03:13:19,153 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 [2023-12-26 03:13:19,177 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-26 03:13:20,355 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-26 03:13:20,378 WARN L435 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)] Forcibly destroying the process [2023-12-26 03:13:20,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-26 03:13:20,422 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-26 03:13:20,426 WARN L435 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)] Forcibly destroying the process [2023-12-26 03:13:20,426 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 [2023-12-26 03:13:20,426 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 254 with TraceHistMax 40,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1000972661] and IpTcStrategyModuleCvc4 [1609599117]. [2023-12-26 03:13:20,430 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-12-26 03:13:20,432 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-26 03:13:20,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 03:13:20 BoogieIcfgContainer [2023-12-26 03:13:20,439 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-26 03:13:20,439 INFO L158 Benchmark]: Toolchain (without parser) took 868890.47ms. Allocated memory was 183.5MB in the beginning and 837.8MB in the end (delta: 654.3MB). Free memory was 131.7MB in the beginning and 247.2MB in the end (delta: -115.5MB). Peak memory consumption was 537.0MB. Max. memory is 8.0GB. [2023-12-26 03:13:20,439 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-26 03:13:20,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 990.05ms. Allocated memory is still 183.5MB. Free memory was 131.7MB in the beginning and 76.9MB in the end (delta: 54.8MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. [2023-12-26 03:13:20,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 227.90ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 76.9MB in the beginning and 194.9MB in the end (delta: -118.0MB). Peak memory consumption was 40.8MB. Max. memory is 8.0GB. [2023-12-26 03:13:20,441 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 137 [2023-12-26 03:13:20,441 INFO L158 Benchmark]: Boogie Preprocessor took 310.35ms. Allocated memory is still 245.4MB. Free memory was 194.9MB in the beginning and 189.3MB in the end (delta: 5.6MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2023-12-26 03:13:20,443 INFO L158 Benchmark]: RCFGBuilder took 4611.12ms. Allocated memory was 245.4MB in the beginning and 369.1MB in the end (delta: 123.7MB). Free memory was 189.3MB in the beginning and 139.6MB in the end (delta: 49.8MB). Peak memory consumption was 215.9MB. Max. memory is 8.0GB. [2023-12-26 03:13:20,443 INFO L158 Benchmark]: TraceAbstraction took 862744.44ms. Allocated memory was 369.1MB in the beginning and 837.8MB in the end (delta: 468.7MB). Free memory was 139.1MB in the beginning and 247.2MB in the end (delta: -108.1MB). Peak memory consumption was 359.5MB. Max. memory is 8.0GB. [2023-12-26 03:13:20,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 990.05ms. Allocated memory is still 183.5MB. Free memory was 131.7MB in the beginning and 76.9MB in the end (delta: 54.8MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 227.90ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 76.9MB in the beginning and 194.9MB in the end (delta: -118.0MB). Peak memory consumption was 40.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 310.35ms. Allocated memory is still 245.4MB. Free memory was 194.9MB in the beginning and 189.3MB in the end (delta: 5.6MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. * RCFGBuilder took 4611.12ms. Allocated memory was 245.4MB in the beginning and 369.1MB in the end (delta: 123.7MB). Free memory was 189.3MB in the beginning and 139.6MB in the end (delta: 49.8MB). Peak memory consumption was 215.9MB. Max. memory is 8.0GB. * TraceAbstraction took 862744.44ms. Allocated memory was 369.1MB in the beginning and 837.8MB in the end (delta: 468.7MB). Free memory was 139.1MB in the beginning and 247.2MB in the end (delta: -108.1MB). Peak memory consumption was 359.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 254 with TraceHistMax 40,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1000972661] and IpTcStrategyModuleCvc4 [1609599117]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 862.7s, OverallIterations: 5, TraceHistogramMax: 40, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 612.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 267.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 827 SdHoareTripleChecker+Invalid, 263.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 713 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1558 IncrementalHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 114 mSDtfsCounter, 1558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 802 GetRequests, 724 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 453.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.2s SsaConstructionTime, 66.6s SatisfiabilityAnalysisTime, 123.8s InterpolantComputationTime, 762 NumberOfCodeBlocks, 762 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 756 ConstructedInterpolants, 66 QuantifiedInterpolants, 22036 SizeOfPredicates, 550 NumberOfNonLiveVariables, 27540 ConjunctsInSsa, 529 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 5027/5538 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown