/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 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-func-interl.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 13:13:07,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 13:13:07,308 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 13:13:07,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 13:13:07,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 13:13:07,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 13:13:07,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 13:13:07,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 13:13:07,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 13:13:07,366 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 13:13:07,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 13:13:07,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 13:13:07,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 13:13:07,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 13:13:07,372 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 13:13:07,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 13:13:07,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 13:13:07,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 13:13:07,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 13:13:07,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 13:13:07,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 13:13:07,375 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 13:13:07,375 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 13:13:07,375 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 13:13:07,375 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 13:13:07,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 13:13:07,376 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 13:13:07,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 13:13:07,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 13:13:07,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 13:13:07,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 13:13:07,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 13:13:07,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 13:13:07,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 13:13:07,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 13:13:07,380 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 13:13:07,380 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 13:13:07,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 13:13:07,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 13:13:07,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 13:13:07,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 13:13:07,381 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 13:13:07,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-01 13:13:07,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 13:13:07,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 13:13:07,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 13:13:07,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 13:13:07,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 13:13:07,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-func-interl.c [2024-11-01 13:13:09,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 13:13:09,460 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 13:13:09,461 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-func-interl.c [2024-11-01 13:13:09,481 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f7e5b4a/adac3f4af1d84597bb292cf3f4f37bda/FLAG20527c566 [2024-11-01 13:13:09,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f7e5b4a/adac3f4af1d84597bb292cf3f4f37bda [2024-11-01 13:13:09,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 13:13:09,507 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 13:13:09,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 13:13:09,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 13:13:09,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 13:13:09,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 01:13:09" (1/1) ... [2024-11-01 13:13:09,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3493a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:09, skipping insertion in model container [2024-11-01 13:13:09,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 01:13:09" (1/1) ... [2024-11-01 13:13:09,602 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 13:13:09,823 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.fischer.3.prop1-func-interl.c[1174,1187] [2024-11-01 13:13:10,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 13:13:10,174 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 13:13:10,185 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.fischer.3.prop1-func-interl.c[1174,1187] [2024-11-01 13:13:10,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 13:13:10,400 INFO L204 MainTranslator]: Completed translation [2024-11-01 13:13:10,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10 WrapperNode [2024-11-01 13:13:10,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 13:13:10,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 13:13:10,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 13:13:10,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 13:13:10,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,586 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2202 [2024-11-01 13:13:10,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 13:13:10,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 13:13:10,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 13:13:10,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 13:13:10,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,687 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 13:13:10,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 13:13:10,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 13:13:10,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 13:13:10,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 13:13:10,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (1/1) ... [2024-11-01 13:13:10,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 13:13:10,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 13:13:10,850 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 13:13:10,854 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 13:13:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 13:13:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 13:13:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 13:13:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 13:13:11,239 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 13:13:11,241 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 13:13:13,310 INFO L? ?]: Removed 128 outVars from TransFormulas that were not future-live. [2024-11-01 13:13:13,311 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 13:13:13,321 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 13:13:13,321 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 13:13:13,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 01:13:13 BoogieIcfgContainer [2024-11-01 13:13:13,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 13:13:13,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 13:13:13,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 13:13:13,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 13:13:13,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 01:13:09" (1/3) ... [2024-11-01 13:13:13,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5236c816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 01:13:13, skipping insertion in model container [2024-11-01 13:13:13,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:13:10" (2/3) ... [2024-11-01 13:13:13,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5236c816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 01:13:13, skipping insertion in model container [2024-11-01 13:13:13,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 01:13:13" (3/3) ... [2024-11-01 13:13:13,331 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.3.prop1-func-interl.c [2024-11-01 13:13:13,346 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 13:13:13,346 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 13:13:13,397 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 13:13:13,402 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;@1b9e6f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 13:13:13,402 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 13:13:13,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 13:13:13,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 13:13:13,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 13:13:13,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 13:13:13,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 13:13:13,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 13:13:13,414 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 13:13:13,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 13:13:13,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318671531] [2024-11-01 13:13:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 13:13:13,421 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 13:13:13,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 13:13:13,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 13:13:13,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 13:13:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 13:13:13,982 WARN L253 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 158 conjuncts are in the unsatisfiable core [2024-11-01 13:13:14,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 13:13:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 13:13:15,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 13:13:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 13:13:23,557 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 13:13:23,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318671531] [2024-11-01 13:13:23,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1318671531] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 13:13:23,558 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 13:13:23,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 13:13:23,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803258289] [2024-11-01 13:13:23,560 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 13:13:23,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 13:13:23,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 13:13:23,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 13:13:23,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 13:13:23,588 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 13:13:27,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-01 13:13:28,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-01 13:13:59,756 WARN L286 SmtUtils]: Spent 30.69s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-01 13:14:04,799 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 13:14:04,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-01 13:14:04,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-01 13:14:04,806 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-01 13:14:04,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2024-11-01 13:14:04,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-01 13:14:05,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-01 13:14:05,010 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:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) 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 [2024-11-01 13:14:05,014 INFO L158 Benchmark]: Toolchain (without parser) took 55507.08ms. Allocated memory was 196.1MB in the beginning and 678.4MB in the end (delta: 482.3MB). Free memory was 169.1MB in the beginning and 372.9MB in the end (delta: -203.7MB). Peak memory consumption was 428.6MB. Max. memory is 8.0GB. [2024-11-01 13:14:05,015 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 196.1MB. Free memory was 172.7MB in the beginning and 172.7MB in the end (delta: 65.5kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 13:14:05,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.77ms. Allocated memory was 196.1MB in the beginning and 254.8MB in the end (delta: 58.7MB). Free memory was 168.6MB in the beginning and 209.5MB in the end (delta: -40.9MB). Peak memory consumption was 68.1MB. Max. memory is 8.0GB. [2024-11-01 13:14:05,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.39ms. Allocated memory is still 254.8MB. Free memory was 209.5MB in the beginning and 205.9MB in the end (delta: 3.6MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2024-11-01 13:14:05,018 INFO L158 Benchmark]: Boogie Preprocessor took 225.28ms. Allocated memory is still 254.8MB. Free memory was 205.9MB in the beginning and 186.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2024-11-01 13:14:05,018 INFO L158 Benchmark]: RCFGBuilder took 2507.57ms. Allocated memory was 254.8MB in the beginning and 392.2MB in the end (delta: 137.4MB). Free memory was 186.5MB in the beginning and 332.2MB in the end (delta: -145.7MB). Peak memory consumption was 219.2MB. Max. memory is 8.0GB. [2024-11-01 13:14:05,019 INFO L158 Benchmark]: TraceAbstraction took 51689.79ms. Allocated memory was 392.2MB in the beginning and 678.4MB in the end (delta: 286.3MB). Free memory was 331.7MB in the beginning and 372.9MB in the end (delta: -41.2MB). Peak memory consumption was 393.5MB. Max. memory is 8.0GB. [2024-11-01 13:14:05,024 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 196.1MB. Free memory was 172.7MB in the beginning and 172.7MB in the end (delta: 65.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 892.77ms. Allocated memory was 196.1MB in the beginning and 254.8MB in the end (delta: 58.7MB). Free memory was 168.6MB in the beginning and 209.5MB in the end (delta: -40.9MB). Peak memory consumption was 68.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 185.39ms. Allocated memory is still 254.8MB. Free memory was 209.5MB in the beginning and 205.9MB in the end (delta: 3.6MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 225.28ms. Allocated memory is still 254.8MB. Free memory was 205.9MB in the beginning and 186.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * RCFGBuilder took 2507.57ms. Allocated memory was 254.8MB in the beginning and 392.2MB in the end (delta: 137.4MB). Free memory was 186.5MB in the beginning and 332.2MB in the end (delta: -145.7MB). Peak memory consumption was 219.2MB. Max. memory is 8.0GB. * TraceAbstraction took 51689.79ms. Allocated memory was 392.2MB in the beginning and 678.4MB in the end (delta: 286.3MB). Free memory was 331.7MB in the beginning and 372.9MB in the end (delta: -41.2MB). Peak memory consumption was 393.5MB. 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...