/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/prodbin-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:11:37,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:11:37,911 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 17:11:37,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:11:37,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:11:37,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:11:37,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:11:37,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:11:37,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:11:37,939 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:11:37,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:11:37,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:11:37,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:11:37,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:11:37,941 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:11:37,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:11:37,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:11:37,941 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:11:37,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:11:37,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:11:37,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:11:37,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:11:37,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:11:37,943 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:11:37,943 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:11:37,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:11:37,943 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:11:37,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:11:37,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:11:37,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:11:37,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:11:37,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:11:37,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:11:37,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:11:37,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:11:37,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:11:37,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:11:37,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:11:37,945 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:11:37,946 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:11:37,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:11:37,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:11:37,946 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:11:37,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:11:37,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:11:37,946 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:11:37,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:11:38,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:11:38,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:11:38,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:11:38,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:11:38,132 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:11:38,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_valuebound2.c [2023-12-16 17:11:39,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:11:39,233 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:11:39,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_valuebound2.c [2023-12-16 17:11:39,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0a09515/5cc033ce20de4cfda992f7be4bb2554b/FLAGe455e2fd8 [2023-12-16 17:11:39,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0a09515/5cc033ce20de4cfda992f7be4bb2554b [2023-12-16 17:11:39,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:11:39,253 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:11:39,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:11:39,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:11:39,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:11:39,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21348567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39, skipping insertion in model container [2023-12-16 17:11:39,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,275 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:11:39,387 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/prodbin-ll_valuebound2.c[537,550] [2023-12-16 17:11:39,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:11:39,406 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:11:39,413 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/prodbin-ll_valuebound2.c[537,550] [2023-12-16 17:11:39,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:11:39,425 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:11:39,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39 WrapperNode [2023-12-16 17:11:39,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:11:39,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:11:39,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:11:39,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:11:39,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,444 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-12-16 17:11:39,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:11:39,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:11:39,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:11:39,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:11:39,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,452 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,458 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 17:11:39,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:11:39,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:11:39,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:11:39,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:11:39,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (1/1) ... [2023-12-16 17:11:39,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:11:39,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:11:39,487 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 17:11:39,488 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 17:11:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:11:39,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:11:39,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 17:11:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 17:11:39,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:11:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:11:39,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 17:11:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 17:11:39,550 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:11:39,551 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:11:39,753 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:11:39,771 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:11:39,771 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:11:39,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:11:39 BoogieIcfgContainer [2023-12-16 17:11:39,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:11:39,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:11:39,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:11:39,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:11:39,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:11:39" (1/3) ... [2023-12-16 17:11:39,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731af415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:11:39, skipping insertion in model container [2023-12-16 17:11:39,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:11:39" (2/3) ... [2023-12-16 17:11:39,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731af415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:11:39, skipping insertion in model container [2023-12-16 17:11:39,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:11:39" (3/3) ... [2023-12-16 17:11:39,776 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound2.c [2023-12-16 17:11:39,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:11:39,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:11:39,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:11:39,821 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;@6aeb0ceb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:11:39,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:11:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 17:11:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:11:39,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:11:39,829 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:11:39,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:11:39,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:11:39,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1698673820, now seen corresponding path program 1 times [2023-12-16 17:11:39,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:11:39,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147212058] [2023-12-16 17:11:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:11:39,841 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 17:11:39,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:11:39,842 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 17:11:39,845 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 17:11:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:11:39,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:11:39,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:11:39,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:11:39,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:11:39,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:11:39,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147212058] [2023-12-16 17:11:39,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147212058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:11:39,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:11:39,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:11:39,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539729320] [2023-12-16 17:11:39,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:11:39,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:11:39,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:11:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:11:39,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:11:39,975 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:11:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:11:39,992 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions. [2023-12-16 17:11:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:11:39,994 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2023-12-16 17:11:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:11:39,998 INFO L225 Difference]: With dead ends: 46 [2023-12-16 17:11:39,998 INFO L226 Difference]: Without dead ends: 22 [2023-12-16 17:11:40,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:11:40,003 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:11:40,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:11:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-16 17:11:40,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-16 17:11:40,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 17:11:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-12-16 17:11:40,025 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 23 [2023-12-16 17:11:40,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:11:40,025 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-12-16 17:11:40,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:11:40,026 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-12-16 17:11:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:11:40,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:11:40,028 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:11:40,038 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 17:11:40,231 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 17:11:40,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:11:40,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:11:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash 549966490, now seen corresponding path program 1 times [2023-12-16 17:11:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:11:40,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100293867] [2023-12-16 17:11:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:11:40,233 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 17:11:40,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:11:40,234 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 17:11:40,242 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 17:11:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:11:40,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 17:11:40,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:11:40,594 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:11:40,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:11:40,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:11:40,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100293867] [2023-12-16 17:11:40,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100293867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:11:40,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:11:40,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 17:11:40,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224935058] [2023-12-16 17:11:40,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:11:40,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:11:40,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:11:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:11:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:11:40,598 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 7 states have internal predecessors, (10), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:11:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:11:41,107 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-12-16 17:11:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:11:41,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 7 states have internal predecessors, (10), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2023-12-16 17:11:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:11:41,108 INFO L225 Difference]: With dead ends: 38 [2023-12-16 17:11:41,108 INFO L226 Difference]: Without dead ends: 31 [2023-12-16 17:11:41,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:11:41,109 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:11:41,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 69 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:11:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-16 17:11:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-12-16 17:11:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 17:11:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-12-16 17:11:41,114 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 23 [2023-12-16 17:11:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:11:41,115 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-12-16 17:11:41,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 7 states have internal predecessors, (10), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:11:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-12-16 17:11:41,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-16 17:11:41,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:11:41,116 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:11:41,128 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 17:11:41,328 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 17:11:41,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:11:41,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:11:41,329 INFO L85 PathProgramCache]: Analyzing trace with hash 191228685, now seen corresponding path program 1 times [2023-12-16 17:11:41,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:11:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603852909] [2023-12-16 17:11:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:11:41,330 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 17:11:41,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:11:41,331 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 17:11:41,361 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 17:11:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:11:41,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:11:41,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:11:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:11:43,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:12:13,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:12:13,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603852909] [2023-12-16 17:12:13,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603852909] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 17:12:13,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1978432188] [2023-12-16 17:12:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:12:13,073 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 17:12:13,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 17:12:13,121 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 17:12:13,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 17:12:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:12:13,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 17:12:13,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:12:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:12:18,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 17:13:00,209 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:13:00,225 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 17:13:00,233 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 17:13:01,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:13:01,242 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 17:13:01,426 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 17:13:01,446 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:13:01,446 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 33 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-16 17:13:01,449 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 17:13:01,451 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:13:01,454 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 17:13:01,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:13:01 BoogieIcfgContainer [2023-12-16 17:13:01,457 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:13:01,462 INFO L158 Benchmark]: Toolchain (without parser) took 82204.42ms. Allocated memory was 194.0MB in the beginning and 269.5MB in the end (delta: 75.5MB). Free memory was 157.4MB in the beginning and 174.2MB in the end (delta: -16.8MB). Peak memory consumption was 59.9MB. Max. memory is 8.0GB. [2023-12-16 17:13:01,463 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 194.0MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:13:01,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.32ms. Allocated memory is still 194.0MB. Free memory was 157.4MB in the beginning and 145.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 17:13:01,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.33ms. Allocated memory is still 194.0MB. Free memory was 145.8MB in the beginning and 144.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 17:13:01,463 INFO L158 Benchmark]: Boogie Preprocessor took 19.67ms. Allocated memory is still 194.0MB. Free memory was 144.5MB in the beginning and 142.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:13:01,464 INFO L158 Benchmark]: RCFGBuilder took 306.49ms. Allocated memory is still 194.0MB. Free memory was 142.7MB in the beginning and 130.8MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 17:13:01,464 INFO L158 Benchmark]: TraceAbstraction took 81684.70ms. Allocated memory was 194.0MB in the beginning and 269.5MB in the end (delta: 75.5MB). Free memory was 130.1MB in the beginning and 174.2MB in the end (delta: -44.1MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB. [2023-12-16 17:13:01,465 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 194.0MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 170.32ms. Allocated memory is still 194.0MB. Free memory was 157.4MB in the beginning and 145.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.33ms. Allocated memory is still 194.0MB. Free memory was 145.8MB in the beginning and 144.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.67ms. Allocated memory is still 194.0MB. Free memory was 144.5MB in the beginning and 142.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 306.49ms. Allocated memory is still 194.0MB. Free memory was 142.7MB in the beginning and 130.8MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 81684.70ms. Allocated memory was 194.0MB in the beginning and 269.5MB in the end (delta: 75.5MB). Free memory was 130.1MB in the beginning and 174.2MB in the end (delta: -44.1MB). Peak memory consumption was 32.7MB. 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: 15]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 15). Cancelled while NwaCegarLoop was analyzing trace of length 33 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 81.6s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 40 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 4 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 24/24 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