/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.8.prop6-back-serstep.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 13:48:10,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 13:48:11,071 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 13:48:11,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 13:48:11,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 13:48:11,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 13:48:11,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 13:48:11,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 13:48:11,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 13:48:11,117 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 13:48:11,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 13:48:11,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 13:48:11,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 13:48:11,119 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 13:48:11,119 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 13:48:11,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 13:48:11,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 13:48:11,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 13:48:11,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 13:48:11,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 13:48:11,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 13:48:11,125 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 13:48:11,125 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 13:48:11,125 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 13:48:11,125 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 13:48:11,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 13:48:11,126 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 13:48:11,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 13:48:11,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 13:48:11,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 13:48:11,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 13:48:11,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 13:48:11,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 13:48:11,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 13:48:11,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 13:48:11,132 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 13:48:11,132 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 13:48:11,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 13:48:11,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 13:48:11,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 13:48:11,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 13:48:11,134 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 13:48:11,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-01 13:48:11,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 13:48:11,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 13:48:11,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 13:48:11,432 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 13:48:11,433 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 13:48:11,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.8.prop6-back-serstep.c [2024-11-01 13:48:12,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 13:48:13,499 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 13:48:13,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.8.prop6-back-serstep.c [2024-11-01 13:48:13,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55750623b/8e87d19624784574a8ed504ed1b1ac89/FLAG178a10978 [2024-11-01 13:48:14,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55750623b/8e87d19624784574a8ed504ed1b1ac89 [2024-11-01 13:48:14,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 13:48:14,037 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 13:48:14,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 13:48:14,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 13:48:14,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 13:48:14,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 01:48:14" (1/1) ... [2024-11-01 13:48:14,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74067258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:14, skipping insertion in model container [2024-11-01 13:48:14,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 01:48:14" (1/1) ... [2024-11-01 13:48:14,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 13:48:14,639 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.8.prop6-back-serstep.c[1180,1193] [2024-11-01 13:48:15,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 13:48:15,832 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 13:48:15,842 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.8.prop6-back-serstep.c[1180,1193] [2024-11-01 13:48:16,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 13:48:16,652 INFO L204 MainTranslator]: Completed translation [2024-11-01 13:48:16,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16 WrapperNode [2024-11-01 13:48:16,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 13:48:16,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 13:48:16,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 13:48:16,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 13:48:16,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:16,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,324 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16620 [2024-11-01 13:48:17,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 13:48:17,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 13:48:17,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 13:48:17,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 13:48:17,336 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,671 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 13:48:17,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:17,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:18,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:18,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 13:48:18,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 13:48:18,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 13:48:18,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 13:48:18,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (1/1) ... [2024-11-01 13:48:18,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 13:48:18,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 13:48:18,155 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 13:48:18,165 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 13:48:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 13:48:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 13:48:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 13:48:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 13:48:19,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 13:48:19,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 13:49:32,075 INFO L? ?]: Removed 1386 outVars from TransFormulas that were not future-live. [2024-11-01 13:49:32,075 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 13:49:32,087 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 13:49:32,087 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 13:49:32,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 01:49:32 BoogieIcfgContainer [2024-11-01 13:49:32,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 13:49:32,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 13:49:32,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 13:49:32,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 13:49:32,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 01:48:14" (1/3) ... [2024-11-01 13:49:32,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6040b780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 01:49:32, skipping insertion in model container [2024-11-01 13:49:32,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 01:48:16" (2/3) ... [2024-11-01 13:49:32,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6040b780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 01:49:32, skipping insertion in model container [2024-11-01 13:49:32,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 01:49:32" (3/3) ... [2024-11-01 13:49:32,099 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pgm_protocol.8.prop6-back-serstep.c [2024-11-01 13:49:32,114 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 13:49:32,115 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 13:49:32,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 13:49:32,178 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;@419ff86f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 13:49:32,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 13:49:32,182 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 13:49:32,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 13:49:32,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 13:49:32,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 13:49:32,191 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 13:49:32,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 13:49:32,196 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 13:49:32,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 13:49:32,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230325867] [2024-11-01 13:49:32,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 13:49:32,205 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 13:49:32,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 13:49:32,206 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 13:49:32,208 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 13:49:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 13:49:35,556 WARN L253 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 1527 conjuncts are in the unsatisfiable core [2024-11-01 13:49:35,715 INFO L278 TraceCheckSpWp]: Computing forward predicates...