./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 2b45498278a8f542f4cd5ce4d94ff4dff71bddcb389dc6b12ae7628aeefb5935 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 14:27:11,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 14:27:11,403 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 14:27:11,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 14:27:11,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 14:27:11,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 14:27:11,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 14:27:11,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 14:27:11,428 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 14:27:11,428 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 14:27:11,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 14:27:11,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 14:27:11,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 14:27:11,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 14:27:11,428 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 14:27:11,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 14:27:11,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 14:27:11,430 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 14:27:11,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 14:27:11,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 14:27:11,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 14:27:11,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 14:27:11,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 14:27:11,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 14:27:11,431 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 14:27:11,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 14:27:11,431 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 14:27:11,431 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 14:27:11,432 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 14:27:11,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 14:27:11,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 14:27:11,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 14:27:11,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 14:27:11,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 14:27:11,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 14:27:11,432 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 14:27:11,433 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 2b45498278a8f542f4cd5ce4d94ff4dff71bddcb389dc6b12ae7628aeefb5935 [2025-02-05 14:27:11,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 14:27:11,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 14:27:11,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 14:27:11,730 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 14:27:11,730 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 14:27:11,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i [2025-02-05 14:27:12,943 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ff47e213/d9d573bd2f0c4a4b9f859db1f94ded6a/FLAG4cef052a1 [2025-02-05 14:27:13,391 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 14:27:13,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i [2025-02-05 14:27:13,419 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ff47e213/d9d573bd2f0c4a4b9f859db1f94ded6a/FLAG4cef052a1 [2025-02-05 14:27:13,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ff47e213/d9d573bd2f0c4a4b9f859db1f94ded6a [2025-02-05 14:27:13,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 14:27:13,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 14:27:13,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 14:27:13,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 14:27:13,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 14:27:13,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 02:27:13" (1/1) ... [2025-02-05 14:27:13,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2dec28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:13, skipping insertion in model container [2025-02-05 14:27:13,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 02:27:13" (1/1) ... [2025-02-05 14:27:13,486 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 14:27:13,964 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i[63639,63652] [2025-02-05 14:27:14,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 14:27:14,235 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 14:27:14,284 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i[63639,63652] [2025-02-05 14:27:14,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 14:27:14,506 INFO L204 MainTranslator]: Completed translation [2025-02-05 14:27:14,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14 WrapperNode [2025-02-05 14:27:14,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 14:27:14,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 14:27:14,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 14:27:14,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 14:27:14,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,642 INFO L138 Inliner]: procedures = 620, calls = 1412, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1652 [2025-02-05 14:27:14,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 14:27:14,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 14:27:14,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 14:27:14,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 14:27:14,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,674 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-05 14:27:14,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,723 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 14:27:14,754 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 14:27:14,754 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 14:27:14,754 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 14:27:14,755 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (1/1) ... [2025-02-05 14:27:14,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 14:27:14,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 14:27:14,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 14:27:14,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 14:27:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-02-05 14:27:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 14:27:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-02-05 14:27:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2025-02-05 14:27:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-02-05 14:27:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 14:27:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 14:27:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 14:27:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 14:27:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-05 14:27:14,955 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 14:27:14,957 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 14:28:06,079 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L848: call ULTIMATE.dealloc(main_~#tensor_input~0#1.base, main_~#tensor_input~0#1.offset);havoc main_~#tensor_input~0#1.base, main_~#tensor_input~0#1.offset;call ULTIMATE.dealloc(main_~#tensor_output~0#1.base, main_~#tensor_output~0#1.offset);havoc main_~#tensor_output~0#1.base, main_~#tensor_output~0#1.offset; [2025-02-05 14:28:06,097 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-02-05 14:28:06,097 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 14:28:06,104 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 14:28:06,104 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 14:28:06,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:28:06 BoogieIcfgContainer [2025-02-05 14:28:06,104 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 14:28:06,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 14:28:06,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 14:28:06,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 14:28:06,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 02:27:13" (1/3) ... [2025-02-05 14:28:06,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dfb089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 02:28:06, skipping insertion in model container [2025-02-05 14:28:06,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:27:14" (2/3) ... [2025-02-05 14:28:06,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dfb089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 02:28:06, skipping insertion in model container [2025-02-05 14:28:06,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:28:06" (3/3) ... [2025-02-05 14:28:06,111 INFO L128 eAbstractionObserver]: Analyzing ICFG vdp_5_safe.c-amalgamation.i [2025-02-05 14:28:06,121 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 14:28:06,122 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG vdp_5_safe.c-amalgamation.i that has 1 procedures, 46 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2025-02-05 14:28:06,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 14:28:06,173 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;@a26eb37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 14:28:06,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 14:28:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 45 states have internal predecessors, (69), 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) [2025-02-05 14:28:06,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-02-05 14:28:06,180 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 14:28:06,180 INFO L218 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] [2025-02-05 14:28:06,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 14:28:06,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 14:28:06,185 INFO L85 PathProgramCache]: Analyzing trace with hash 880284366, now seen corresponding path program 1 times [2025-02-05 14:28:06,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 14:28:06,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876159613] [2025-02-05 14:28:06,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 14:28:06,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms