./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/vdp_11_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/vdp_11_safe.c-amalgamation.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9acfaab61d92b9f1cdd4ab6eebe5b2c5b9d1ce96ee555bd2c1fe617fbf99e1c0 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 13:45:29,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 13:45:29,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 13:45:29,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 13:45:29,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 13:45:29,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 13:45:29,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 13:45:29,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 13:45:29,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 13:45:29,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 13:45:29,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 13:45:29,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 13:45:29,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 13:45:29,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 13:45:29,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 13:45:29,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 13:45:29,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 13:45:29,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 13:45:29,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 13:45:29,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 13:45:29,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 13:45:29,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 13:45:29,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 13:45:29,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 13:45:29,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 13:45:29,312 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 13:45:29,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 13:45:29,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 13:45:29,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 13:45:29,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 13:45:29,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 13:45:29,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 13:45:29,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 13:45:29,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 13:45:29,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 13:45:29,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 13:45:29,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 13:45:29,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 13:45:29,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 13:45:29,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 13:45:29,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 13:45:29,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 13:45:29,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9acfaab61d92b9f1cdd4ab6eebe5b2c5b9d1ce96ee555bd2c1fe617fbf99e1c0 [2024-11-08 13:45:29,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 13:45:29,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 13:45:29,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 13:45:29,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 13:45:29,599 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 13:45:29,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/vdp_11_safe.c-amalgamation.i [2024-11-08 13:45:31,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 13:45:31,410 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 13:45:31,411 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/vdp_11_safe.c-amalgamation.i [2024-11-08 13:45:31,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b8316e3/6568ad8d9df7482a958ccad23f5cdb66/FLAG825df8268 [2024-11-08 13:45:31,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b8316e3/6568ad8d9df7482a958ccad23f5cdb66 [2024-11-08 13:45:31,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 13:45:31,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 13:45:31,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 13:45:31,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 13:45:31,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 13:45:31,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:45:31" (1/1) ... [2024-11-08 13:45:31,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107f081d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:31, skipping insertion in model container [2024-11-08 13:45:31,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:45:31" (1/1) ... [2024-11-08 13:45:31,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 13:45:32,141 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/vdp_11_safe.c-amalgamation.i[63644,63657] [2024-11-08 13:45:32,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 13:45:32,394 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 13:45:32,439 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/vdp_11_safe.c-amalgamation.i[63644,63657] [2024-11-08 13:45:32,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 13:45:32,733 INFO L204 MainTranslator]: Completed translation [2024-11-08 13:45:32,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32 WrapperNode [2024-11-08 13:45:32,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 13:45:32,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 13:45:32,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 13:45:32,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 13:45:32,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,886 INFO L138 Inliner]: procedures = 620, calls = 1412, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1685 [2024-11-08 13:45:32,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 13:45:32,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 13:45:32,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 13:45:32,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 13:45:32,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,916 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,924 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-08 13:45:32,924 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:32,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:33,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 13:45:33,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 13:45:33,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 13:45:33,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 13:45:33,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (1/1) ... [2024-11-08 13:45:33,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 13:45:33,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 13:45:33,046 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) [2024-11-08 13:45:33,050 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 [2024-11-08 13:45:33,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-08 13:45:33,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 13:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-08 13:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-08 13:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-08 13:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 13:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 13:45:33,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 13:45:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 13:45:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 13:45:33,280 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 13:45:33,283 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 13:46:30,064 INFO L? ?]: Removed 128 outVars from TransFormulas that were not future-live. [2024-11-08 13:46:30,064 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 13:46:30,083 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 13:46:30,084 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 13:46:30,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:46:30 BoogieIcfgContainer [2024-11-08 13:46:30,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 13:46:30,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 13:46:30,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 13:46:30,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 13:46:30,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 01:45:31" (1/3) ... [2024-11-08 13:46:30,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b265e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:46:30, skipping insertion in model container [2024-11-08 13:46:30,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:45:32" (2/3) ... [2024-11-08 13:46:30,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b265e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:46:30, skipping insertion in model container [2024-11-08 13:46:30,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:46:30" (3/3) ... [2024-11-08 13:46:30,098 INFO L112 eAbstractionObserver]: Analyzing ICFG vdp_11_safe.c-amalgamation.i [2024-11-08 13:46:30,118 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 13:46:30,119 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 13:46:30,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 13:46:30,214 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;@36aa060a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 13:46:30,215 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 13:46:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 66 states have (on average 1.5454545454545454) internal successors, (102), 67 states have internal predecessors, (102), 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) [2024-11-08 13:46:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 13:46:30,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 13:46:30,232 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-08 13:46:30,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 13:46:30,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 13:46:30,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1571388801, now seen corresponding path program 1 times [2024-11-08 13:46:30,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 13:46:30,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714950743] [2024-11-08 13:46:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 13:46:30,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms