/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 16:42:50,521 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-16 16:42:50,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-16 16:42:50,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 16:42:50,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 16:42:50,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 16:42:50,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 16:42:50,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 16:42:50,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 16:42:50,580 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-12-16 16:42:50,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 16:42:50,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 16:42:50,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 16:42:50,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-16 16:42:50,581 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-16 16:42:50,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 16:42:50,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-16 16:42:50,582 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-16 16:42:50,582 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-16 16:42:50,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-16 16:42:50,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 16:42:50,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 16:42:50,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 16:42:50,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-12-16 16:42:50,588 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-12-16 16:42:50,589 INFO L153 SettingsManager]: * Allow undefined functions=false
[2023-12-16 16:42:50,589 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-16 16:42:50,590 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-16 16:42:50,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-16 16:42:50,590 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-16 16:42:50,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 16:42:50,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-16 16:42:50,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 16:42:50,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-16 16:42:50,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 16:42:50,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 16:42:50,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 16:42:50,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 16:42:50,592 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-12-16 16:42:50,592 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-16 16:42:50,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 16:42:50,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 16:42:50,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 16:42:50,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 16:42:50,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 16:42:50,594 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-12-16 16:42:50,594 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-16 16:42:50,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 16:42:50,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 16:42:50,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 16:42:50,806 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-16 16:42:50,806 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-16 16:42:50,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c
[2023-12-16 16:42:52,055 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-16 16:42:52,242 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-16 16:42:52,242 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c
[2023-12-16 16:42:52,251 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d68430b/13ae134ba0d54b8cab82f28a6d49506a/FLAG7b57e197e
[2023-12-16 16:42:52,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d68430b/13ae134ba0d54b8cab82f28a6d49506a
[2023-12-16 16:42:52,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 16:42:52,273 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 16:42:52,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 16:42:52,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 16:42:52,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 16:42:52,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a3f77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52, skipping insertion in model container
[2023-12-16 16:42:52,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,324 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-16 16:42:52,454 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c[597,610]
[2023-12-16 16:42:52,472 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-16 16:42:52,481 INFO L202 MainTranslator]: Completed pre-run
[2023-12-16 16:42:52,493 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_unwindbound1.c[597,610]
[2023-12-16 16:42:52,502 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-16 16:42:52,517 INFO L206 MainTranslator]: Completed translation
[2023-12-16 16:42:52,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52 WrapperNode
[2023-12-16 16:42:52,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 16:42:52,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 16:42:52,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 16:42:52,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 16:42:52,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,561 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53
[2023-12-16 16:42:52,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 16:42:52,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 16:42:52,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 16:42:52,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 16:42:52,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,601 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-16 16:42:52,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 16:42:52,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 16:42:52,621 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 16:42:52,621 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-16 16:42:52,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (1/1) ...
[2023-12-16 16:42:52,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 16:42:52,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 16:42:52,674 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)
[2023-12-16 16:42:52,676 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
[2023-12-16 16:42:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 16:42:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-16 16:42:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 16:42:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 16:42:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-12-16 16:42:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-12-16 16:42:52,787 INFO L241 CfgBuilder]: Building ICFG
[2023-12-16 16:42:52,806 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 16:42:53,283 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-16 16:42:53,316 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 16:42:53,316 INFO L309 CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-16 16:42:53,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:42:53 BoogieIcfgContainer
[2023-12-16 16:42:53,317 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 16:42:53,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 16:42:53,318 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 16:42:53,320 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-16 16:42:53,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:42:52" (1/3) ...
[2023-12-16 16:42:53,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79603d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:42:53, skipping insertion in model container
[2023-12-16 16:42:53,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:42:52" (2/3) ...
[2023-12-16 16:42:53,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79603d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:42:53, skipping insertion in model container
[2023-12-16 16:42:53,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:42:53" (3/3) ...
[2023-12-16 16:42:53,322 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound1.c
[2023-12-16 16:42:53,333 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 16:42:53,333 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 16:42:53,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 16:42:53,365 INFO L357 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, mHoare=true, 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;@d869262, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 16:42:53,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 16:42:53,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-16 16:42:53,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-12-16 16:42:53,372 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 16:42:53,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-12-16 16:42:53,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 16:42:53,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 16:42:53,376 INFO L85 PathProgramCache]: Analyzing trace with hash -26250642, now seen corresponding path program 1 times
[2023-12-16 16:42:53,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 16:42:53,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299049526]
[2023-12-16 16:42:53,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 16:42:53,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 16:42:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 16:42:53,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 16:42:53,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-16 16:42:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 16:42:53,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 16:42:53,651 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 16:42:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 16:42:53,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 16:42:53,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 16:42:53,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299049526]
[2023-12-16 16:42:53,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299049526] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 16:42:53,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 16:42:53,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 16:42:53,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366437852]
[2023-12-16 16:42:53,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 16:42:53,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 16:42:53,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 16:42:53,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 16:42:53,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-16 16:42:53,993 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 16:42:55,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 16:42:55,545 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions.
[2023-12-16 16:42:55,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 16:42:55,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2023-12-16 16:42:55,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 16:42:55,552 INFO L225 Difference]: With dead ends: 46
[2023-12-16 16:42:55,552 INFO L226 Difference]: Without dead ends: 24
[2023-12-16 16:42:55,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-12-16 16:42:55,557 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-16 16:42:55,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 41 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-16 16:42:55,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2023-12-16 16:42:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23.
[2023-12-16 16:42:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-16 16:42:55,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions.
[2023-12-16 16:42:55,582 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 7
[2023-12-16 16:42:55,582 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 16:42:55,582 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions.
[2023-12-16 16:42:55,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 16:42:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions.
[2023-12-16 16:42:55,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2023-12-16 16:42:55,583 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 16:42:55,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 16:42:55,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-16 16:42:55,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 16:42:55,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 16:42:55,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 16:42:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash -479331439, now seen corresponding path program 1 times
[2023-12-16 16:42:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 16:42:55,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402831698]
[2023-12-16 16:42:55,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 16:42:55,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 16:42:55,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 16:42:55,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 16:42:55,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-16 16:42:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 16:42:55,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-16 16:42:55,911 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 16:42:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 16:42:55,955 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 16:42:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 16:42:56,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 16:42:56,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402831698]
[2023-12-16 16:42:56,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402831698] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 16:42:56,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 16:42:56,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8
[2023-12-16 16:42:56,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741744195]
[2023-12-16 16:42:56,004 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 16:42:56,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-16 16:42:56,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 16:42:56,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-16 16:42:56,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-12-16 16:42:56,006 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-16 16:42:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 16:42:56,302 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions.
[2023-12-16 16:42:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 16:42:56,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17
[2023-12-16 16:42:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 16:42:56,306 INFO L225 Difference]: With dead ends: 35
[2023-12-16 16:42:56,306 INFO L226 Difference]: Without dead ends: 19
[2023-12-16 16:42:56,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2023-12-16 16:42:56,307 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-16 16:42:56,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 57 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-16 16:42:56,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2023-12-16 16:42:56,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2023-12-16 16:42:56,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-12-16 16:42:56,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions.
[2023-12-16 16:42:56,311 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17
[2023-12-16 16:42:56,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 16:42:56,311 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions.
[2023-12-16 16:42:56,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-16 16:42:56,312 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions.
[2023-12-16 16:42:56,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2023-12-16 16:42:56,312 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 16:42:56,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 16:42:56,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-16 16:42:56,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 16:42:56,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 16:42:56,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 16:42:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2046946502, now seen corresponding path program 1 times
[2023-12-16 16:42:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 16:42:56,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482604435]
[2023-12-16 16:42:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 16:42:56,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 16:42:56,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 16:42:56,521 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 16:42:56,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-16 16:43:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 16:43:03,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-16 16:43:03,804 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 16:43:05,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 16:43:05,756 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 16:44:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 16:44:12,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 16:44:12,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482604435]
[2023-12-16 16:44:12,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482604435] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 16:44:12,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 16:44:12,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21
[2023-12-16 16:44:12,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13876430]
[2023-12-16 16:44:12,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 16:44:12,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2023-12-16 16:44:12,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 16:44:12,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2023-12-16 16:44:12,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420
[2023-12-16 16:44:12,224 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 21 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
Received shutdown request...
[2023-12-16 16:44:13,231 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 16:44:13,235 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 16:44:14,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-16 16:44:14,436 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process
[2023-12-16 16:44:14,443 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 137
[2023-12-16 16:44:14,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 56.1s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420
[2023-12-16 16:44:14,445 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-16 16:44:14,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-16 16:44:14,447 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 16:44:14,447 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor.
[2023-12-16 16:44:14,451 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-12-16 16:44:14,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 16:44:14,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:44:14 BoogieIcfgContainer
[2023-12-16 16:44:14,459 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 16:44:14,459 INFO L158 Benchmark]: Toolchain (without parser) took 82185.88ms. Allocated memory is still 263.2MB. Free memory was 212.5MB in the beginning and 200.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB.
[2023-12-16 16:44:14,459 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 216.0MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 16:44:14,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.57ms. Allocated memory is still 263.2MB. Free memory was 212.1MB in the beginning and 200.6MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2023-12-16 16:44:14,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.94ms. Allocated memory is still 263.2MB. Free memory was 200.6MB in the beginning and 198.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2023-12-16 16:44:14,460 INFO L158 Benchmark]: Boogie Preprocessor took 58.37ms. Allocated memory is still 263.2MB. Free memory was 198.9MB in the beginning and 197.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-16 16:44:14,460 INFO L158 Benchmark]: RCFGBuilder took 695.50ms. Allocated memory is still 263.2MB. Free memory was 196.9MB in the beginning and 183.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2023-12-16 16:44:14,460 INFO L158 Benchmark]: TraceAbstraction took 81140.50ms. Allocated memory is still 263.2MB. Free memory was 183.3MB in the beginning and 200.6MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 16:44:14,461 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 216.0MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 244.57ms. Allocated memory is still 263.2MB. Free memory was 212.1MB in the beginning and 200.6MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 40.94ms. Allocated memory is still 263.2MB. Free memory was 200.6MB in the beginning and 198.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 58.37ms. Allocated memory is still 263.2MB. Free memory was 198.9MB in the beginning and 197.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 695.50ms. Allocated memory is still 263.2MB. Free memory was 196.9MB in the beginning and 183.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 81140.50ms. Allocated memory is still 263.2MB. Free memory was 183.3MB in the beginning and 200.6MB in the end (delta: -17.4MB). There was no memory consumed. 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
- TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction)
Unable to prove that a call to reach_error is unreachable (line 16). Cancelled while executing Executor.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 81.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 24 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 56.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 7.5s SatisfiabilityAnalysisTime, 68.8s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 858 SizeOfPredicates, 9 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 8/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown