/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 03:55:54,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 03:55:54,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 03:55:54,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 03:55:54,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 03:55:54,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 03:55:54,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 03:55:54,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 03:55:54,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 03:55:54,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 03:55:54,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 03:55:54,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 03:55:54,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 03:55:54,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 03:55:54,209 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 03:55:54,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 03:55:54,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 03:55:54,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 03:55:54,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 03:55:54,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 03:55:54,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 03:55:54,212 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 03:55:54,212 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 03:55:54,213 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 03:55:54,213 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 03:55:54,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 03:55:54,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 03:55:54,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 03:55:54,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 03:55:54,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 03:55:54,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 03:55:54,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 03:55:54,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 03:55:54,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 03:55:54,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 03:55:54,217 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 03:55:54,217 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 03:55:54,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 03:55:54,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 03:55:54,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 03:55:54,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 03:55:54,219 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 03:55:54,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 03:55:54,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 03:55:54,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 03:55:54,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 03:55:54,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 03:55:54,570 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 03:55:54,572 INFO L431 ainManager$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_d64_e0.c [2024-11-01 03:55:56,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 03:55:56,600 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 03:55:56,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c [2024-11-01 03:55:56,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0833b0b1/abf22c69310b4d30a45b5d1fc8f7516e/FLAGd4353a34c [2024-11-01 03:55:56,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0833b0b1/abf22c69310b4d30a45b5d1fc8f7516e [2024-11-01 03:55:56,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 03:55:56,741 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 03:55:56,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 03:55:56,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 03:55:56,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 03:55:56,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 03:55:56" (1/1) ... [2024-11-01 03:55:56,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1029d587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:56, skipping insertion in model container [2024-11-01 03:55:56,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 03:55:56" (1/1) ... [2024-11-01 03:55:56,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 03:55:57,183 WARN L251 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_d64_e0.c[1270,1283] [2024-11-01 03:55:57,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 03:55:57,925 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 03:55:57,936 WARN L251 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_d64_e0.c[1270,1283] [2024-11-01 03:55:58,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 03:55:58,287 INFO L204 MainTranslator]: Completed translation [2024-11-01 03:55:58,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58 WrapperNode [2024-11-01 03:55:58,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 03:55:58,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 03:55:58,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 03:55:58,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 03:55:58,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,632 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6673 [2024-11-01 03:55:58,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 03:55:58,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 03:55:58,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 03:55:58,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 03:55:58,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,835 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]. [2024-11-01 03:55:58,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:58,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:59,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 03:55:59,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 03:55:59,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 03:55:59,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 03:55:59,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (1/1) ... [2024-11-01 03:55:59,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 03:55:59,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 03:55:59,070 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) [2024-11-01 03:55:59,072 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 [2024-11-01 03:55:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 03:55:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 03:55:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-01 03:55:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-01 03:55:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 03:55:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 03:56:00,140 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 03:56:00,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 03:56:06,950 INFO L? ?]: Removed 1865 outVars from TransFormulas that were not future-live. [2024-11-01 03:56:06,951 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 03:56:06,961 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 03:56:06,961 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 03:56:06,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 03:56:06 BoogieIcfgContainer [2024-11-01 03:56:06,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 03:56:06,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 03:56:06,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 03:56:06,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 03:56:06,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 03:55:56" (1/3) ... [2024-11-01 03:56:06,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e2a05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 03:56:06, skipping insertion in model container [2024-11-01 03:56:06,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 03:55:58" (2/3) ... [2024-11-01 03:56:06,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e2a05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 03:56:06, skipping insertion in model container [2024-11-01 03:56:06,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 03:56:06" (3/3) ... [2024-11-01 03:56:06,973 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c [2024-11-01 03:56:06,988 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 03:56:06,988 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 03:56:07,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 03:56:07,056 INFO L333 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, 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;@32433078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 03:56:07,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 03:56:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 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) [2024-11-01 03:56:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-01 03:56:07,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 03:56:07,073 INFO L215 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, 1] [2024-11-01 03:56:07,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 03:56:07,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 03:56:07,080 INFO L85 PathProgramCache]: Analyzing trace with hash -209771273, now seen corresponding path program 1 times [2024-11-01 03:56:07,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 03:56:07,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404690515] [2024-11-01 03:56:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 03:56:07,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 03:56:07,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 03:56:07,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 03:56:07,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-01 03:56:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 03:56:09,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 2238 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-01 03:56:09,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 03:56:09,538 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-01 03:56:09,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 03:56:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-01 03:56:10,293 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 03:56:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404690515] [2024-11-01 03:56:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [404690515] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 03:56:10,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 03:56:10,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-01 03:56:10,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055299523] [2024-11-01 03:56:10,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 03:56:10,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-01 03:56:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 03:56:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-01 03:56:10,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-01 03:56:10,328 INFO L87 Difference]: Start difference. First operand has 34 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 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 11 states, 9 states have (on average 4.0) internal successors, (36), 11 states have internal predecessors, (36), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-01 03:56:12,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-01 03:56:12,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 03:56:12,626 INFO L93 Difference]: Finished difference Result 85 states and 140 transitions. [2024-11-01 03:56:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-01 03:56:12,630 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.0) internal successors, (36), 11 states have internal predecessors, (36), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 65 [2024-11-01 03:56:12,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 03:56:12,636 INFO L225 Difference]: With dead ends: 85 [2024-11-01 03:56:12,636 INFO L226 Difference]: Without dead ends: 53 [2024-11-01 03:56:12,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-01 03:56:12,642 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-01 03:56:12,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 83 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-01 03:56:12,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-01 03:56:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-01 03:56:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 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) [2024-11-01 03:56:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2024-11-01 03:56:12,683 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 65 [2024-11-01 03:56:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 03:56:12,686 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-11-01 03:56:12,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.0) internal successors, (36), 11 states have internal predecessors, (36), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-01 03:56:12,687 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2024-11-01 03:56:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-01 03:56:12,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 03:56:12,694 INFO L215 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, 1] [2024-11-01 03:56:12,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-01 03:56:12,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 03:56:12,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 03:56:12,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 03:56:12,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1242097501, now seen corresponding path program 1 times [2024-11-01 03:56:12,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 03:56:12,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235643415] [2024-11-01 03:56:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 03:56:12,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 03:56:12,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 03:56:12,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 03:56:12,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-01 03:56:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 03:56:15,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 4374 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-01 03:56:15,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 03:56:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 18 proven. 61 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-01 03:56:16,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 03:56:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 18 proven. 61 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-01 03:56:24,895 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 03:56:24,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235643415] [2024-11-01 03:56:24,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1235643415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 03:56:24,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 03:56:24,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-11-01 03:56:24,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643393503] [2024-11-01 03:56:24,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 03:56:24,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-01 03:56:24,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 03:56:24,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-01 03:56:24,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-01 03:56:24,900 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 17 states have internal predecessors, (62), 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) [2024-11-01 03:56:28,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-01 03:56:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 03:56:28,939 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2024-11-01 03:56:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-01 03:56:28,941 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 17 states have internal predecessors, (62), 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 128 [2024-11-01 03:56:28,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 03:56:28,943 INFO L225 Difference]: With dead ends: 78 [2024-11-01 03:56:28,943 INFO L226 Difference]: Without dead ends: 76 [2024-11-01 03:56:28,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-01 03:56:28,945 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 9 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-01 03:56:28,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 234 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-01 03:56:28,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-01 03:56:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-01 03:56:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 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) [2024-11-01 03:56:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2024-11-01 03:56:28,962 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 128 [2024-11-01 03:56:28,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 03:56:28,963 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2024-11-01 03:56:28,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 17 states have internal predecessors, (62), 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) [2024-11-01 03:56:28,964 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2024-11-01 03:56:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-01 03:56:28,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 03:56:28,967 INFO L215 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, 1] [2024-11-01 03:56:28,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-01 03:56:29,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 03:56:29,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 03:56:29,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 03:56:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2139398281, now seen corresponding path program 2 times [2024-11-01 03:56:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 03:56:29,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151533740] [2024-11-01 03:56:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 03:56:29,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 03:56:29,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 03:56:29,172 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 03:56:29,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-01 03:56:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 03:56:33,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 6510 conjuncts, 143 conjuncts are in the unsatisfiable core [2024-11-01 03:56:33,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 03:56:47,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 198 proven. 181 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2024-11-01 03:56:47,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 03:57:09,058 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 [2024-11-01 03:57:09,058 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") [2024-11-01 03:57:09,060 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 03:57:09,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151533740] [2024-11-01 03:57:09,061 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-01 03:57:09,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-01 03:57:09,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 03:57:09,262 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)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:553) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 44 more [2024-11-01 03:57:09,267 INFO L158 Benchmark]: Toolchain (without parser) took 72525.23ms. Allocated memory was 204.5MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 169.1MB in the beginning and 621.4MB in the end (delta: -452.3MB). Peak memory consumption was 563.2MB. Max. memory is 8.0GB. [2024-11-01 03:57:09,267 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 204.5MB. Free memory was 180.7MB in the beginning and 180.6MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 03:57:09,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1547.22ms. Allocated memory was 204.5MB in the beginning and 253.8MB in the end (delta: 49.3MB). Free memory was 169.1MB in the beginning and 168.1MB in the end (delta: 1.0MB). Peak memory consumption was 147.8MB. Max. memory is 8.0GB. [2024-11-01 03:57:09,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 342.05ms. Allocated memory is still 253.8MB. Free memory was 168.1MB in the beginning and 154.5MB in the end (delta: 13.6MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2024-11-01 03:57:09,268 INFO L158 Benchmark]: Boogie Preprocessor took 396.60ms. Allocated memory is still 253.8MB. Free memory was 154.5MB in the beginning and 118.8MB in the end (delta: 35.7MB). Peak memory consumption was 38.3MB. Max. memory is 8.0GB. [2024-11-01 03:57:09,269 INFO L158 Benchmark]: RCFGBuilder took 7928.58ms. Allocated memory was 253.8MB in the beginning and 814.7MB in the end (delta: 561.0MB). Free memory was 118.8MB in the beginning and 284.5MB in the end (delta: -165.7MB). Peak memory consumption was 395.8MB. Max. memory is 8.0GB. [2024-11-01 03:57:09,269 INFO L158 Benchmark]: TraceAbstraction took 62302.15ms. Allocated memory was 814.7MB in the beginning and 1.2GB in the end (delta: 403.7MB). Free memory was 284.0MB in the beginning and 621.4MB in the end (delta: -337.5MB). Peak memory consumption was 66.2MB. Max. memory is 8.0GB. [2024-11-01 03:57:09,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 204.5MB. Free memory was 180.7MB in the beginning and 180.6MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1547.22ms. Allocated memory was 204.5MB in the beginning and 253.8MB in the end (delta: 49.3MB). Free memory was 169.1MB in the beginning and 168.1MB in the end (delta: 1.0MB). Peak memory consumption was 147.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 342.05ms. Allocated memory is still 253.8MB. Free memory was 168.1MB in the beginning and 154.5MB in the end (delta: 13.6MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 396.60ms. Allocated memory is still 253.8MB. Free memory was 154.5MB in the beginning and 118.8MB in the end (delta: 35.7MB). Peak memory consumption was 38.3MB. Max. memory is 8.0GB. * RCFGBuilder took 7928.58ms. Allocated memory was 253.8MB in the beginning and 814.7MB in the end (delta: 561.0MB). Free memory was 118.8MB in the beginning and 284.5MB in the end (delta: -165.7MB). Peak memory consumption was 395.8MB. Max. memory is 8.0GB. * TraceAbstraction took 62302.15ms. Allocated memory was 814.7MB in the beginning and 1.2GB in the end (delta: 403.7MB). Free memory was 284.0MB in the beginning and 621.4MB in the end (delta: -337.5MB). Peak memory consumption was 66.2MB. 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)) Received EOF on stdin. stderr output: (error "out of memory") 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)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...