/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_w8_d16_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-26 03:05:33,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-26 03:05:33,784 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 03:05:33,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-26 03:05:33,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-26 03:05:33,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-26 03:05:33,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-26 03:05:33,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-26 03:05:33,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-26 03:05:33,823 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-26 03:05:33,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-26 03:05:33,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-26 03:05:33,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-26 03:05:33,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-26 03:05:33,825 INFO L153 SettingsManager]: * Use SBE=true [2023-12-26 03:05:33,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-26 03:05:33,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-26 03:05:33,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-26 03:05:33,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-26 03:05:33,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-26 03:05:33,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-26 03:05:33,826 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-26 03:05:33,827 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-26 03:05:33,827 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-26 03:05:33,827 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-26 03:05:33,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-26 03:05:33,828 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-26 03:05:33,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-26 03:05:33,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-26 03:05:33,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-26 03:05:33,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-26 03:05:33,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 03:05:33,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-26 03:05:33,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-26 03:05:33,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-26 03:05:33,830 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-26 03:05:33,830 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-26 03:05:33,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-26 03:05:33,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-26 03:05:33,831 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-26 03:05:33,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-26 03:05:33,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-26 03:05:33,831 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-26 03:05:33,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-26 03:05:34,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-26 03:05:34,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-26 03:05:34,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-26 03:05:34,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-26 03:05:34,083 INFO L274 PluginConnector]: CDTParser initialized [2023-12-26 03:05:34,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d16_e0.c [2023-12-26 03:05:35,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-26 03:05:35,456 INFO L384 CDTParser]: Found 1 translation units. [2023-12-26 03:05:35,458 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d16_e0.c [2023-12-26 03:05:35,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b547a04/67c355cbcc304dffb69a0f85faf07e07/FLAG605a2a2b7 [2023-12-26 03:05:35,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b547a04/67c355cbcc304dffb69a0f85faf07e07 [2023-12-26 03:05:35,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-26 03:05:35,497 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-26 03:05:35,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-26 03:05:35,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-26 03:05:35,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-26 03:05:35,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 03:05:35" (1/1) ... [2023-12-26 03:05:35,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18626b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:35, skipping insertion in model container [2023-12-26 03:05:35,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 03:05:35" (1/1) ... [2023-12-26 03:05:35,566 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-26 03:05:35,718 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_w8_d16_e0.c[1270,1283] [2023-12-26 03:05:36,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 03:05:36,099 INFO L202 MainTranslator]: Completed pre-run [2023-12-26 03:05:36,119 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_w8_d16_e0.c[1270,1283] [2023-12-26 03:05:36,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 03:05:36,339 INFO L206 MainTranslator]: Completed translation [2023-12-26 03:05:36,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36 WrapperNode [2023-12-26 03:05:36,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-26 03:05:36,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-26 03:05:36,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-26 03:05:36,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-26 03:05:36,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,489 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2308 [2023-12-26 03:05:36,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-26 03:05:36,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-26 03:05:36,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-26 03:05:36,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-26 03:05:36,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,612 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 03:05:36,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-26 03:05:36,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-26 03:05:36,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-26 03:05:36,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-26 03:05:36,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (1/1) ... [2023-12-26 03:05:36,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 03:05:36,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-26 03:05:36,775 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 03:05:36,802 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 03:05:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-26 03:05:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-26 03:05:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-26 03:05:36,809 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-26 03:05:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-26 03:05:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-26 03:05:37,203 INFO L241 CfgBuilder]: Building ICFG [2023-12-26 03:05:37,205 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-26 03:05:39,178 INFO L282 CfgBuilder]: Performing block encoding [2023-12-26 03:05:39,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-26 03:05:39,287 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-26 03:05:39,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 03:05:39 BoogieIcfgContainer [2023-12-26 03:05:39,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-26 03:05:39,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-26 03:05:39,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-26 03:05:39,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-26 03:05:39,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 03:05:35" (1/3) ... [2023-12-26 03:05:39,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47df485a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 03:05:39, skipping insertion in model container [2023-12-26 03:05:39,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:05:36" (2/3) ... [2023-12-26 03:05:39,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47df485a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 03:05:39, skipping insertion in model container [2023-12-26 03:05:39,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 03:05:39" (3/3) ... [2023-12-26 03:05:39,296 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w8_d16_e0.c [2023-12-26 03:05:39,311 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-26 03:05:39,312 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-26 03:05:39,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-26 03:05:39,362 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;@74d6ce92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-26 03:05:39,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-26 03:05:39,366 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 03:05:39,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-26 03:05:39,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:05:39,377 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 03:05:39,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:05:39,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:05:39,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1229239407, now seen corresponding path program 1 times [2023-12-26 03:05:39,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:05:39,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13521628] [2023-12-26 03:05:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:05:39,399 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 03:05:39,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:05:39,404 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 03:05:39,414 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 03:05:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:05:40,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-26 03:05:40,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:05:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-26 03:05:40,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 03:05:40,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:05:40,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13521628] [2023-12-26 03:05:40,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13521628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 03:05:40,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 03:05:40,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-26 03:05:40,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579750246] [2023-12-26 03:05:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 03:05:40,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-26 03:05:40,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:05:40,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-26 03:05:40,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-26 03:05:40,207 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 03:05:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 03:05:40,238 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2023-12-26 03:05:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-26 03:05:40,241 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 03:05:40,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 03:05:40,246 INFO L225 Difference]: With dead ends: 61 [2023-12-26 03:05:40,246 INFO L226 Difference]: Without dead ends: 30 [2023-12-26 03:05:40,249 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 03:05:40,251 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 03:05:40,252 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 03:05:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-26 03:05:40,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-26 03:05:40,280 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 03:05:40,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-12-26 03:05:40,282 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 64 [2023-12-26 03:05:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 03:05:40,282 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-12-26 03:05:40,282 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 03:05:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-12-26 03:05:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-26 03:05:40,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:05:40,285 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 03:05:40,294 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 03:05:40,489 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 03:05:40,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:05:40,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:05:40,490 INFO L85 PathProgramCache]: Analyzing trace with hash -148556931, now seen corresponding path program 1 times [2023-12-26 03:05:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:05:40,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751868391] [2023-12-26 03:05:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:05:40,493 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 03:05:40,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:05:40,494 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 03:05:40,500 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 03:05:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:05:41,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-26 03:05:41,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:05:41,509 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 03:05:41,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 03:05:41,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:05:41,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751868391] [2023-12-26 03:05:41,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751868391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 03:05:41,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 03:05:41,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-26 03:05:41,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860703904] [2023-12-26 03:05:41,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 03:05:41,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-26 03:05:41,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:05:41,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-26 03:05:41,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-26 03:05:41,513 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 03:05:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 03:05:41,904 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2023-12-26 03:05:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 03:05:41,904 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 03:05:41,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 03:05:41,906 INFO L225 Difference]: With dead ends: 55 [2023-12-26 03:05:41,906 INFO L226 Difference]: Without dead ends: 53 [2023-12-26 03:05:41,906 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 03:05:41,907 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-26 03:05:41,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 75 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-26 03:05:41,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-26 03:05:41,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2023-12-26 03:05:41,919 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 03:05:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2023-12-26 03:05:41,920 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 64 [2023-12-26 03:05:41,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 03:05:41,924 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2023-12-26 03:05:41,925 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 03:05:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-12-26 03:05:41,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-26 03:05:41,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:05:41,927 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 03:05:41,939 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 03:05:42,136 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 03:05:42,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:05:42,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:05:42,137 INFO L85 PathProgramCache]: Analyzing trace with hash -438810163, now seen corresponding path program 1 times [2023-12-26 03:05:42,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:05:42,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129054223] [2023-12-26 03:05:42,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:05:42,141 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 03:05:42,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:05:42,143 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 03:05:42,145 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 03:05:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:05:47,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 2782 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-26 03:05:47,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:05:47,928 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 03:05:47,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:05:48,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:05:48,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129054223] [2023-12-26 03:05:48,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129054223] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:05:48,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1691874343] [2023-12-26 03:05:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:05:48,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-26 03:05:48,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-26 03:05:48,098 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 03:05:48,116 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 03:05:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:05:50,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 2782 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-26 03:05:50,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:05:50,509 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 03:05:50,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:05:50,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1691874343] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:05:50,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 03:05:50,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-26 03:05:50,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906541453] [2023-12-26 03:05:50,674 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 03:05:50,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-26 03:05:50,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:05:50,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-26 03:05:50,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-26 03:05:50,676 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-26 03:05:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 03:05:51,599 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2023-12-26 03:05:51,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-26 03:05:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 127 [2023-12-26 03:05:51,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 03:05:51,603 INFO L225 Difference]: With dead ends: 78 [2023-12-26 03:05:51,603 INFO L226 Difference]: Without dead ends: 76 [2023-12-26 03:05:51,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-26 03:05:51,604 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-26 03:05:51,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 147 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-26 03:05:51,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-26 03:05:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2023-12-26 03:05:51,617 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 03:05:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2023-12-26 03:05:51,619 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 127 [2023-12-26 03:05:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 03:05:51,620 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2023-12-26 03:05:51,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-26 03:05:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2023-12-26 03:05:51,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-26 03:05:51,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:05:51,623 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 03:05:51,638 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 03:05:51,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-26 03:05:52,029 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 03:05:52,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:05:52,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:05:52,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1049908867, now seen corresponding path program 2 times [2023-12-26 03:05:52,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:05:52,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669739929] [2023-12-26 03:05:52,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 03:05:52,033 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 03:05:52,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:05:52,034 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 03:05:52,034 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 03:06:06,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 03:06:06,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 03:06:06,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 4669 conjuncts, 215 conjunts are in the unsatisfiable core [2023-12-26 03:06:06,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:06:22,544 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 03:06:22,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:06:23,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:06:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669739929] [2023-12-26 03:06:23,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669739929] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:06:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1643282988] [2023-12-26 03:06:23,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 03:06:23,070 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-26 03:06:23,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-26 03:06:23,073 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 03:06:23,096 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 03:06:25,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 03:06:25,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 03:06:25,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 4669 conjuncts, 204 conjunts are in the unsatisfiable core [2023-12-26 03:06:25,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:08:35,879 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 03:08:35,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:08:36,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1643282988] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:08:36,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 03:08:36,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 31 [2023-12-26 03:08:36,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723676552] [2023-12-26 03:08:36,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 03:08:36,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-26 03:08:36,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:08:36,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-26 03:08:36,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=903, Unknown=28, NotChecked=0, Total=1056 [2023-12-26 03:08:36,415 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 03:08:40,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:44,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:48,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:54,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:08:58,631 WARN L539 Checker$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 03:09:02,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:06,768 WARN L539 Checker$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 03:09:10,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:14,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:19,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:09:52,599 WARN L539 Checker$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 03:09:56,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:01,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:05,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:10:10,428 WARN L539 Checker$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 03:10:14,459 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-12-26 03:10:14,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2023-12-26 03:10:14,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 163.3s TimeCoverageRelationStatistics Valid=260, Invalid=1514, Unknown=32, NotChecked=0, Total=1806 [2023-12-26 03:10:14,461 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 44 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 38 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.5s IncrementalHoareTripleChecker+Time [2023-12-26 03:10:14,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 340 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 772 Invalid, 15 Unknown, 0 Unchecked, 67.5s Time] [2023-12-26 03:10:14,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-26 03:10:14,688 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 03:10:14,862 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 03:10:14,863 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Broken pipe at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2023-12-26 03:10:14,867 INFO L158 Benchmark]: Toolchain (without parser) took 279369.76ms. Allocated memory was 223.3MB in the beginning and 871.4MB in the end (delta: 648.0MB). Free memory was 190.3MB in the beginning and 537.0MB in the end (delta: -346.7MB). Peak memory consumption was 560.3MB. Max. memory is 8.0GB. [2023-12-26 03:10:14,867 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 223.3MB. Free memory is still 180.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-26 03:10:14,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.99ms. Allocated memory is still 223.3MB. Free memory was 190.3MB in the beginning and 181.1MB in the end (delta: 9.2MB). Peak memory consumption was 76.7MB. Max. memory is 8.0GB. [2023-12-26 03:10:14,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.48ms. Allocated memory is still 223.3MB. Free memory was 181.1MB in the beginning and 163.8MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-26 03:10:14,868 INFO L158 Benchmark]: Boogie Preprocessor took 251.19ms. Allocated memory was 223.3MB in the beginning and 337.6MB in the end (delta: 114.3MB). Free memory was 163.8MB in the beginning and 276.9MB in the end (delta: -113.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-26 03:10:14,868 INFO L158 Benchmark]: RCFGBuilder took 2545.88ms. Allocated memory was 337.6MB in the beginning and 437.3MB in the end (delta: 99.6MB). Free memory was 276.9MB in the beginning and 247.9MB in the end (delta: 29.0MB). Peak memory consumption was 130.3MB. Max. memory is 8.0GB. [2023-12-26 03:10:14,868 INFO L158 Benchmark]: TraceAbstraction took 275576.40ms. Allocated memory was 437.3MB in the beginning and 871.4MB in the end (delta: 434.1MB). Free memory was 246.8MB in the beginning and 537.0MB in the end (delta: -290.2MB). Peak memory consumption was 402.0MB. Max. memory is 8.0GB. [2023-12-26 03:10:14,870 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 223.3MB. Free memory is still 180.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 840.99ms. Allocated memory is still 223.3MB. Free memory was 190.3MB in the beginning and 181.1MB in the end (delta: 9.2MB). Peak memory consumption was 76.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 148.48ms. Allocated memory is still 223.3MB. Free memory was 181.1MB in the beginning and 163.8MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 251.19ms. Allocated memory was 223.3MB in the beginning and 337.6MB in the end (delta: 114.3MB). Free memory was 163.8MB in the beginning and 276.9MB in the end (delta: -113.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * RCFGBuilder took 2545.88ms. Allocated memory was 337.6MB in the beginning and 437.3MB in the end (delta: 99.6MB). Free memory was 276.9MB in the beginning and 247.9MB in the end (delta: 29.0MB). Peak memory consumption was 130.3MB. Max. memory is 8.0GB. * TraceAbstraction took 275576.40ms. Allocated memory was 437.3MB in the beginning and 871.4MB in the end (delta: 434.1MB). Free memory was 246.8MB in the beginning and 537.0MB in the end (delta: -290.2MB). Peak memory consumption was 402.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...