/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/neural-networks/softmax_8_safe.c-amalgamation.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 15:10:38,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 15:10:38,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 15:10:38,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 15:10:38,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 15:10:38,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 15:10:38,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 15:10:38,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 15:10:38,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 15:10:38,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 15:10:38,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 15:10:38,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 15:10:38,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 15:10:38,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 15:10:38,770 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 15:10:38,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 15:10:38,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 15:10:38,771 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 15:10:38,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 15:10:38,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 15:10:38,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 15:10:38,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 15:10:38,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 15:10:38,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 15:10:38,777 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 15:10:38,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 15:10:38,777 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 15:10:38,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 15:10:38,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 15:10:38,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 15:10:38,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 15:10:38,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 15:10:38,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 15:10:38,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 15:10:38,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 15:10:38,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 15:10:38,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 15:10:38,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 15:10:38,780 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 15:10:38,782 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 15:10:38,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 15:10:38,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 15:10:38,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 15:10:38,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 15:10:38,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 15:10:39,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 15:10:39,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 15:10:39,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 15:10:39,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 15:10:39,040 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 15:10:39,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/neural-networks/softmax_8_safe.c-amalgamation.i [2024-11-03 15:10:40,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 15:10:40,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 15:10:40,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/softmax_8_safe.c-amalgamation.i [2024-11-03 15:10:40,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e773661/33d7004a60354bf1b477aeae94ecedec/FLAG05e2c3e20 [2024-11-03 15:10:40,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e773661/33d7004a60354bf1b477aeae94ecedec [2024-11-03 15:10:40,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 15:10:40,681 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 15:10:40,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 15:10:40,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 15:10:40,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 15:10:40,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:10:40" (1/1) ... [2024-11-03 15:10:40,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a0fd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:40, skipping insertion in model container [2024-11-03 15:10:40,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:10:40" (1/1) ... [2024-11-03 15:10:40,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 15:10:41,236 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/softmax_8_safe.c-amalgamation.i[63746,63759] [2024-11-03 15:10:41,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 15:10:41,249 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 15:10:41,313 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/softmax_8_safe.c-amalgamation.i[63746,63759] [2024-11-03 15:10:41,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 15:10:41,519 INFO L204 MainTranslator]: Completed translation [2024-11-03 15:10:41,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41 WrapperNode [2024-11-03 15:10:41,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 15:10:41,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 15:10:41,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 15:10:41,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 15:10:41,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,575 INFO L138 Inliner]: procedures = 562, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 131 [2024-11-03 15:10:41,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 15:10:41,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 15:10:41,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 15:10:41,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 15:10:41,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,591 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,604 INFO L175 MemorySlicer]: Split 25 memory accesses to 4 slices as follows [2, 7, 4, 12]. 48 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7, 0, 0]. The 6 writes are split as follows [0, 0, 2, 4]. [2024-11-03 15:10:41,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 15:10:41,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 15:10:41,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 15:10:41,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 15:10:41,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (1/1) ... [2024-11-03 15:10:41,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 15:10:41,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 15:10:41,671 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) [2024-11-03 15:10:41,673 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 [2024-11-03 15:10:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-03 15:10:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-03 15:10:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-03 15:10:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-03 15:10:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 15:10:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 15:10:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 15:10:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 15:10:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 15:10:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 15:10:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 15:10:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 15:10:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-03 15:10:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-03 15:10:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-03 15:10:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-03 15:10:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 15:10:41,801 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 15:10:41,802 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 15:10:42,372 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-03 15:10:42,372 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 15:10:42,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 15:10:42,382 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-03 15:10:42,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:10:42 BoogieIcfgContainer [2024-11-03 15:10:42,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 15:10:42,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 15:10:42,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 15:10:42,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 15:10:42,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:10:40" (1/3) ... [2024-11-03 15:10:42,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18035376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:10:42, skipping insertion in model container [2024-11-03 15:10:42,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:10:41" (2/3) ... [2024-11-03 15:10:42,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18035376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:10:42, skipping insertion in model container [2024-11-03 15:10:42,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:10:42" (3/3) ... [2024-11-03 15:10:42,390 INFO L112 eAbstractionObserver]: Analyzing ICFG softmax_8_safe.c-amalgamation.i [2024-11-03 15:10:42,405 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 15:10:42,405 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 15:10:42,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 15:10:42,469 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;@277d11dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 15:10:42,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 15:10:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 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) [2024-11-03 15:10:42,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-03 15:10:42,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:42,477 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] [2024-11-03 15:10:42,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:42,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:42,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2096707609, now seen corresponding path program 1 times [2024-11-03 15:10:42,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:42,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905688849] [2024-11-03 15:10:42,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:42,489 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:42,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:42,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:42,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 15:10:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 15:10:42,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 15:10:42,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 15:10:42,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 15:10:42,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 15:10:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 15:10:42,638 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 15:10:42,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905688849] [2024-11-03 15:10:42,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1905688849] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 15:10:42,639 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 15:10:42,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 15:10:42,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984543836] [2024-11-03 15:10:42,641 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 15:10:42,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 15:10:42,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 15:10:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 15:10:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 15:10:42,665 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-03 15:10:42,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 15:10:42,678 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2024-11-03 15:10:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 15:10:42,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) Word has length 20 [2024-11-03 15:10:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 15:10:42,690 INFO L225 Difference]: With dead ends: 57 [2024-11-03 15:10:42,690 INFO L226 Difference]: Without dead ends: 26 [2024-11-03 15:10:42,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 15:10:42,695 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 15:10:42,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 15:10:42,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-03 15:10:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-03 15:10:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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) [2024-11-03 15:10:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-11-03 15:10:42,732 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2024-11-03 15:10:42,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 15:10:42,732 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-11-03 15:10:42,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-03 15:10:42,733 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-03 15:10:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-03 15:10:42,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:42,733 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] [2024-11-03 15:10:42,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 15:10:42,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:42,934 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:42,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:42,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1671457263, now seen corresponding path program 1 times [2024-11-03 15:10:42,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:42,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339074617] [2024-11-03 15:10:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:42,936 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:42,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:42,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:42,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 15:10:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 15:10:43,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 15:10:43,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 15:10:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 15:10:43,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 15:10:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 15:10:43,117 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 15:10:43,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339074617] [2024-11-03 15:10:43,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [339074617] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 15:10:43,118 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 15:10:43,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 15:10:43,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213098227] [2024-11-03 15:10:43,118 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 15:10:43,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 15:10:43,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 15:10:43,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 15:10:43,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 15:10:43,121 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-03 15:10:43,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 15:10:43,734 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2024-11-03 15:10:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 15:10:43,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) Word has length 20 [2024-11-03 15:10:43,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 15:10:43,736 INFO L225 Difference]: With dead ends: 43 [2024-11-03 15:10:43,736 INFO L226 Difference]: Without dead ends: 30 [2024-11-03 15:10:43,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 15:10:43,738 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 15:10:43,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 15:10:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-03 15:10:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-03 15:10:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 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) [2024-11-03 15:10:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-03 15:10:43,757 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 20 [2024-11-03 15:10:43,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 15:10:43,758 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-03 15:10:43,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-03 15:10:43,758 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-03 15:10:43,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-03 15:10:43,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:43,759 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 15:10:43,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 15:10:43,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:43,960 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:43,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:43,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1128715665, now seen corresponding path program 1 times [2024-11-03 15:10:43,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:43,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760786074] [2024-11-03 15:10:43,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:43,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:43,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 15:10:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 15:10:44,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 15:10:44,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 15:10:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 15:10:44,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 15:10:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 15:10:44,336 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 15:10:44,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760786074] [2024-11-03 15:10:44,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [760786074] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 15:10:44,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 15:10:44,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-03 15:10:44,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523694823] [2024-11-03 15:10:44,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 15:10:44,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 15:10:44,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 15:10:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 15:10:44,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 15:10:44,341 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-03 15:10:44,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 15:10:44,818 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-03 15:10:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 15:10:44,818 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) Word has length 26 [2024-11-03 15:10:44,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 15:10:44,819 INFO L225 Difference]: With dead ends: 48 [2024-11-03 15:10:44,819 INFO L226 Difference]: Without dead ends: 35 [2024-11-03 15:10:44,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 15:10:44,821 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 15:10:44,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 109 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 15:10:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-03 15:10:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-11-03 15:10:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 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) [2024-11-03 15:10:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-11-03 15:10:44,827 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 26 [2024-11-03 15:10:44,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 15:10:44,828 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-11-03 15:10:44,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-03 15:10:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2024-11-03 15:10:44,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-03 15:10:44,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:44,829 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 15:10:44,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 15:10:45,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:45,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:45,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:45,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1336706149, now seen corresponding path program 2 times [2024-11-03 15:10:45,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:45,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556503075] [2024-11-03 15:10:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:45,031 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:45,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:45,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:45,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 15:10:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 15:10:45,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 15:10:45,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 15:10:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 15:10:45,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 15:10:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 15:10:45,300 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 15:10:45,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556503075] [2024-11-03 15:10:45,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [556503075] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 15:10:45,301 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 15:10:45,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-03 15:10:45,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075546750] [2024-11-03 15:10:45,301 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 15:10:45,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 15:10:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 15:10:45,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 15:10:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 15:10:45,303 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-11-03 15:10:45,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 15:10:45,971 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2024-11-03 15:10:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 15:10:45,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) Word has length 29 [2024-11-03 15:10:45,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 15:10:45,973 INFO L225 Difference]: With dead ends: 49 [2024-11-03 15:10:45,973 INFO L226 Difference]: Without dead ends: 39 [2024-11-03 15:10:45,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-03 15:10:45,974 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 15:10:45,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 51 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 15:10:45,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-03 15:10:45,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-03 15:10:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 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) [2024-11-03 15:10:45,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2024-11-03 15:10:45,982 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 29 [2024-11-03 15:10:45,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 15:10:45,982 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2024-11-03 15:10:45,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-11-03 15:10:45,982 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2024-11-03 15:10:45,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-03 15:10:45,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:45,983 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 15:10:45,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 15:10:46,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:46,185 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:46,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash 978520685, now seen corresponding path program 1 times [2024-11-03 15:10:46,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:46,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691420262] [2024-11-03 15:10:46,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:46,186 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:46,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:46,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:46,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 15:10:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 15:10:46,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 15:10:46,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 15:10:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 15:10:46,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 15:10:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 15:10:46,639 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 15:10:46,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691420262] [2024-11-03 15:10:46,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [691420262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 15:10:46,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 15:10:46,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-03 15:10:46,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855696898] [2024-11-03 15:10:46,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 15:10:46,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 15:10:46,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 15:10:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 15:10:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-03 15:10:46,641 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 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) [2024-11-03 15:10:49,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-03 15:10:49,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 15:10:49,656 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2024-11-03 15:10:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 15:10:49,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 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) Word has length 37 [2024-11-03 15:10:49,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 15:10:49,658 INFO L225 Difference]: With dead ends: 60 [2024-11-03 15:10:49,658 INFO L226 Difference]: Without dead ends: 47 [2024-11-03 15:10:49,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-03 15:10:49,659 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 52 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-03 15:10:49,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 101 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-03 15:10:49,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-03 15:10:49,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-03 15:10:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 46 states have internal predecessors, (53), 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) [2024-11-03 15:10:49,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2024-11-03 15:10:49,666 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 37 [2024-11-03 15:10:49,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 15:10:49,666 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2024-11-03 15:10:49,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 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) [2024-11-03 15:10:49,667 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2024-11-03 15:10:49,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-03 15:10:49,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:49,668 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 15:10:49,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Forceful destruction successful, exit code 0 [2024-11-03 15:10:49,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:49,870 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:49,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:49,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1132771211, now seen corresponding path program 2 times [2024-11-03 15:10:49,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:49,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711163700] [2024-11-03 15:10:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:49,871 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:49,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:49,872 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:49,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-03 15:10:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 15:10:49,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 15:10:49,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 15:10:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-03 15:10:49,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 15:10:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-03 15:10:49,982 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 15:10:49,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711163700] [2024-11-03 15:10:49,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [711163700] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 15:10:49,983 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 15:10:49,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 15:10:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675390317] [2024-11-03 15:10:49,983 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 15:10:49,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 15:10:49,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 15:10:49,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 15:10:49,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 15:10:49,984 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-03 15:10:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 15:10:50,114 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2024-11-03 15:10:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 15:10:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) Word has length 45 [2024-11-03 15:10:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 15:10:50,118 INFO L225 Difference]: With dead ends: 54 [2024-11-03 15:10:50,118 INFO L226 Difference]: Without dead ends: 50 [2024-11-03 15:10:50,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 15:10:50,119 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 15:10:50,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 15:10:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-03 15:10:50,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-03 15:10:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 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) [2024-11-03 15:10:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2024-11-03 15:10:50,130 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 45 [2024-11-03 15:10:50,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 15:10:50,131 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2024-11-03 15:10:50,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-03 15:10:50,131 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2024-11-03 15:10:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-03 15:10:50,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:50,132 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 15:10:50,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Forceful destruction successful, exit code 0 [2024-11-03 15:10:50,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:50,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:50,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:50,333 INFO L85 PathProgramCache]: Analyzing trace with hash -259246791, now seen corresponding path program 1 times [2024-11-03 15:10:50,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:50,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091952010] [2024-11-03 15:10:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:50,334 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:50,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:50,336 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:50,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-03 15:10:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 15:10:50,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 15:10:50,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 15:10:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-03 15:10:50,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 15:10:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-03 15:10:50,560 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 15:10:50,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091952010] [2024-11-03 15:10:50,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1091952010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 15:10:50,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 15:10:50,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-03 15:10:50,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573094291] [2024-11-03 15:10:50,561 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 15:10:50,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 15:10:50,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 15:10:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 15:10:50,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-03 15:10:50,564 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2024-11-03 15:10:50,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 15:10:50,852 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2024-11-03 15:10:50,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 15:10:50,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) Word has length 49 [2024-11-03 15:10:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 15:10:50,857 INFO L225 Difference]: With dead ends: 58 [2024-11-03 15:10:50,857 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 15:10:50,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-03 15:10:50,858 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 15:10:50,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 128 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 15:10:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 15:10:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 15:10:50,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.1320754716981132) internal successors, (60), 53 states have internal predecessors, (60), 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) [2024-11-03 15:10:50,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2024-11-03 15:10:50,871 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 49 [2024-11-03 15:10:50,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 15:10:50,871 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2024-11-03 15:10:50,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2024-11-03 15:10:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2024-11-03 15:10:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-03 15:10:50,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 15:10:50,876 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 15:10:50,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Ended with exit code 0 [2024-11-03 15:10:51,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:51,077 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 15:10:51,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 15:10:51,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1525604355, now seen corresponding path program 2 times [2024-11-03 15:10:51,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 15:10:51,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918622889] [2024-11-03 15:10:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 15:10:51,079 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 15:10:51,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:51,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 15:10:51,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-03 15:10:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 15:10:51,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-03 15:10:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 15:10:54,200 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-03 15:10:54,201 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-03 15:10:54,202 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 15:10:54,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Ended with exit code 0 [2024-11-03 15:10:54,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 15:10:54,406 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-03 15:10:54,433 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NumberFormatException: Character I is neither a decimal digit number, decimal point, nor "e" notation exponential mark. at java.base/java.math.BigDecimal.(BigDecimal.java:522) at java.base/java.math.BigDecimal.(BigDecimal.java:405) at java.base/java.math.BigDecimal.(BigDecimal.java:838) at java.base/java.math.BigDecimal.valueOf(BigDecimal.java:1318) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.getDecimalFromBinaryString(Boogie2ACSL.java:272) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.constructFloat(Boogie2ACSL.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.translateFunctionApplication(Boogie2ACSL.java:321) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.translateExpression(Boogie2ACSL.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Boogie2ACSL.translateExpression(Boogie2ACSL.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpressionWithContext(CACSL2BoogieBacktranslator.java:959) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:964) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpressionForProgramState(CACSL2BoogieBacktranslator.java:950) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramStateEntry(CACSL2BoogieBacktranslator.java:616) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramState(CACSL2BoogieBacktranslator.java:596) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramExecution(CACSL2BoogieBacktranslator.java:270) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:237) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:246) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:246) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:246) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:224) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.BacktranslationService.translateProgramExecution(BacktranslationService.java:73) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.(UnprovableResult.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportUnproveableResult(CegarLoopResultReporter.java:178) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportCounterexampleResult(CegarLoopResultReporter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportCegarLoopResult(CegarLoopResultReporter.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-03 15:10:54,435 INFO L158 Benchmark]: Toolchain (without parser) took 13753.88ms. Allocated memory was 191.9MB in the beginning and 323.0MB in the end (delta: 131.1MB). Free memory was 134.8MB in the beginning and 145.0MB in the end (delta: -10.2MB). Peak memory consumption was 121.9MB. Max. memory is 8.0GB. [2024-11-03 15:10:54,436 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 15:10:54,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 836.99ms. Allocated memory was 191.9MB in the beginning and 323.0MB in the end (delta: 131.1MB). Free memory was 134.5MB in the beginning and 247.5MB in the end (delta: -113.0MB). Peak memory consumption was 33.5MB. Max. memory is 8.0GB. [2024-11-03 15:10:54,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.82ms. Allocated memory is still 323.0MB. Free memory was 247.5MB in the beginning and 244.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 15:10:54,436 INFO L158 Benchmark]: Boogie Preprocessor took 62.79ms. Allocated memory is still 323.0MB. Free memory was 244.4MB in the beginning and 241.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 15:10:54,437 INFO L158 Benchmark]: RCFGBuilder took 742.54ms. Allocated memory is still 323.0MB. Free memory was 241.2MB in the beginning and 225.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-03 15:10:54,437 INFO L158 Benchmark]: TraceAbstraction took 12050.28ms. Allocated memory is still 323.0MB. Free memory was 224.4MB in the beginning and 145.0MB in the end (delta: 79.4MB). Peak memory consumption was 78.9MB. Max. memory is 8.0GB. [2024-11-03 15:10:54,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 836.99ms. Allocated memory was 191.9MB in the beginning and 323.0MB in the end (delta: 131.1MB). Free memory was 134.5MB in the beginning and 247.5MB in the end (delta: -113.0MB). Peak memory consumption was 33.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.82ms. Allocated memory is still 323.0MB. Free memory was 247.5MB in the beginning and 244.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.79ms. Allocated memory is still 323.0MB. Free memory was 244.4MB in the beginning and 241.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 742.54ms. Allocated memory is still 323.0MB. Free memory was 241.2MB in the beginning and 225.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 12050.28ms. Allocated memory is still 323.0MB. Free memory was 224.4MB in the beginning and 145.0MB in the end (delta: 79.4MB). Peak memory consumption was 78.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NumberFormatException: Character I is neither a decimal digit number, decimal point, nor "e" notation exponential mark. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NumberFormatException: Character I is neither a decimal digit number, decimal point, nor "e" notation exponential mark.: java.base/java.math.BigDecimal.(BigDecimal.java:522) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-03 15:10:54,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...