/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.pgm_protocol.1.prop1-back-serstep.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 13:41:18,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 13:41:18,700 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 13:41:18,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 13:41:18,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 13:41:18,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 13:41:18,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 13:41:18,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 13:41:18,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 13:41:18,753 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 13:41:18,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 13:41:18,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 13:41:18,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 13:41:18,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 13:41:18,759 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 13:41:18,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 13:41:18,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 13:41:18,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 13:41:18,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 13:41:18,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 13:41:18,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 13:41:18,766 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 13:41:18,766 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 13:41:18,767 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 13:41:18,767 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 13:41:18,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 13:41:18,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 13:41:18,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 13:41:18,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 13:41:18,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 13:41:18,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 13:41:18,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 13:41:18,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 13:41:18,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 13:41:18,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 13:41:18,770 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 13:41:18,771 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 13:41:18,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 13:41:18,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 13:41:18,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 13:41:18,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 13:41:18,773 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 13:41:18,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-01 13:41:19,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 13:41:19,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 13:41:19,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 13:41:19,124 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 13:41:19,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 13:41:19,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop1-back-serstep.c [2024-11-01 13:41:20,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 13:41:21,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 13:41:21,145 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop1-back-serstep.c [2024-11-01 13:41:21,227 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1fa8e2c/abe6e9ca6fff43678e77f07578e88bcd/FLAG39d3bca71 [2024-11-01 13:41:21,246 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1fa8e2c/abe6e9ca6fff43678e77f07578e88bcd [2024-11-01 13:41:21,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 13:41:21,250 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 13:41:21,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 13:41:21,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 13:41:21,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 13:41:21,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 01:41:21" (1/1) ... [2024-11-01 13:41:21,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23204df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:21, skipping insertion in model container [2024-11-01 13:41:21,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 01:41:21" (1/1) ... [2024-11-01 13:41:21,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 13:41:21,869 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.pgm_protocol.1.prop1-back-serstep.c[1180,1193] [2024-11-01 13:41:22,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 13:41:22,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 13:41:22,908 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.pgm_protocol.1.prop1-back-serstep.c[1180,1193] [2024-11-01 13:41:23,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 13:41:23,627 INFO L204 MainTranslator]: Completed translation [2024-11-01 13:41:23,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23 WrapperNode [2024-11-01 13:41:23,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 13:41:23,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 13:41:23,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 13:41:23,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 13:41:23,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:23,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:24,317 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16183 [2024-11-01 13:41:24,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 13:41:24,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 13:41:24,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 13:41:24,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 13:41:24,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:24,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:24,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:24,805 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 13:41:24,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:24,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:25,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:25,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:25,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:25,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:25,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 13:41:25,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 13:41:25,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 13:41:25,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 13:41:25,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (1/1) ... [2024-11-01 13:41:25,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 13:41:25,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 13:41:25,204 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 13:41:25,213 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 13:41:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 13:41:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 13:41:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 13:41:25,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 13:41:26,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 13:41:26,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 13:42:34,995 INFO L? ?]: Removed 1354 outVars from TransFormulas that were not future-live. [2024-11-01 13:42:34,996 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 13:42:35,005 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 13:42:35,005 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 13:42:35,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 01:42:35 BoogieIcfgContainer [2024-11-01 13:42:35,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 13:42:35,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 13:42:35,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 13:42:35,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 13:42:35,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 01:41:21" (1/3) ... [2024-11-01 13:42:35,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cfcc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 01:42:35, skipping insertion in model container [2024-11-01 13:42:35,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:41:23" (2/3) ... [2024-11-01 13:42:35,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cfcc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 01:42:35, skipping insertion in model container [2024-11-01 13:42:35,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 01:42:35" (3/3) ... [2024-11-01 13:42:35,012 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pgm_protocol.1.prop1-back-serstep.c [2024-11-01 13:42:35,023 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 13:42:35,023 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 13:42:35,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 13:42:35,081 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;@33d35124, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 13:42:35,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 13:42:35,085 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 13:42:35,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 13:42:35,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 13:42:35,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 13:42:35,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 13:42:35,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 13:42:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 13:42:35,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 13:42:35,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256725800] [2024-11-01 13:42:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 13:42:35,109 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 13:42:35,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 13:42:35,112 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 13:42:35,114 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 13:42:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 13:42:38,554 WARN L253 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 1490 conjuncts are in the unsatisfiable core [2024-11-01 13:42:38,728 INFO L278 TraceCheckSpWp]: Computing forward predicates...