/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/lcm1_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 04:03:11,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 04:03:11,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 04:03:11,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 04:03:11,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 04:03:11,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 04:03:11,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 04:03:11,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 04:03:11,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 04:03:11,854 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 04:03:11,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 04:03:11,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 04:03:11,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 04:03:11,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 04:03:11,857 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 04:03:11,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 04:03:11,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 04:03:11,858 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 04:03:11,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 04:03:11,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 04:03:11,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 04:03:11,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 04:03:11,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 04:03:11,860 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 04:03:11,860 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 04:03:11,860 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 04:03:11,860 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 04:03:11,860 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 04:03:11,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 04:03:11,861 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 04:03:11,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 04:03:11,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 04:03:11,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 04:03:11,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 04:03:11,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 04:03:11,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 04:03:11,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 04:03:11,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 04:03:11,863 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 04:03:11,863 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 04:03:11,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 04:03:11,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 04:03:11,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 04:03:11,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 04:03:11,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 04:03:11,864 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 04:03:11,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 04:03:12,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 04:03:12,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 04:03:12,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 04:03:12,133 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 04:03:12,135 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 04:03:12,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound1.c [2023-12-25 04:03:13,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 04:03:13,514 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 04:03:13,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound1.c [2023-12-25 04:03:13,521 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02947224a/2e36c183173842469e7a190fc53ae164/FLAG9b2c0a744 [2023-12-25 04:03:13,533 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02947224a/2e36c183173842469e7a190fc53ae164 [2023-12-25 04:03:13,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 04:03:13,537 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 04:03:13,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 04:03:13,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 04:03:13,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 04:03:13,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46eaaad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13, skipping insertion in model container [2023-12-25 04:03:13,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,566 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 04:03:13,674 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/lcm1_valuebound1.c[552,565] [2023-12-25 04:03:13,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 04:03:13,706 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 04:03:13,717 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/lcm1_valuebound1.c[552,565] [2023-12-25 04:03:13,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 04:03:13,735 INFO L206 MainTranslator]: Completed translation [2023-12-25 04:03:13,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13 WrapperNode [2023-12-25 04:03:13,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 04:03:13,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 04:03:13,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 04:03:13,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 04:03:13,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,762 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-12-25 04:03:13,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 04:03:13,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 04:03:13,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 04:03:13,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 04:03:13,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,773 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,783 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2023-12-25 04:03:13,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 04:03:13,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 04:03:13,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 04:03:13,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 04:03:13,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (1/1) ... [2023-12-25 04:03:13,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 04:03:13,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 04:03:13,845 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) [2023-12-25 04:03:13,870 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 [2023-12-25 04:03:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 04:03:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 04:03:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 04:03:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-25 04:03:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-25 04:03:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 04:03:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 04:03:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-25 04:03:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-25 04:03:13,956 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 04:03:13,960 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 04:03:14,166 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 04:03:14,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 04:03:14,190 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-25 04:03:14,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:03:14 BoogieIcfgContainer [2023-12-25 04:03:14,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 04:03:14,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 04:03:14,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 04:03:14,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 04:03:14,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 04:03:13" (1/3) ... [2023-12-25 04:03:14,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52030011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:03:14, skipping insertion in model container [2023-12-25 04:03:14,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:13" (2/3) ... [2023-12-25 04:03:14,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52030011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:03:14, skipping insertion in model container [2023-12-25 04:03:14,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:03:14" (3/3) ... [2023-12-25 04:03:14,197 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm1_valuebound1.c [2023-12-25 04:03:14,213 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 04:03:14,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 04:03:14,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 04:03:14,260 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;@4ab6d893, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 04:03:14,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 04:03:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 18 states have internal predecessors, (29), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-25 04:03:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-25 04:03:14,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 04:03:14,283 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 04:03:14,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 04:03:14,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 04:03:14,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1357102633, now seen corresponding path program 1 times [2023-12-25 04:03:14,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 04:03:14,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835982388] [2023-12-25 04:03:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 04:03:14,304 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 [2023-12-25 04:03:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 04:03:14,308 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) [2023-12-25 04:03:14,333 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 [2023-12-25 04:03:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 04:03:14,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 04:03:14,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 04:03:14,436 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 04:03:14,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 04:03:14,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 04:03:14,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835982388] [2023-12-25 04:03:14,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835982388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 04:03:14,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 04:03:14,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 04:03:14,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548738769] [2023-12-25 04:03:14,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 04:03:14,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 04:03:14,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 04:03:14,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 04:03:14,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 04:03:14,470 INFO L87 Difference]: Start difference. First operand has 32 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 18 states have internal predecessors, (29), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 04:03:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 04:03:14,496 INFO L93 Difference]: Finished difference Result 62 states and 110 transitions. [2023-12-25 04:03:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 04:03:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2023-12-25 04:03:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 04:03:14,504 INFO L225 Difference]: With dead ends: 62 [2023-12-25 04:03:14,505 INFO L226 Difference]: Without dead ends: 30 [2023-12-25 04:03:14,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 04:03:14,510 INFO L413 NwaCegarLoop]: 41 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, 41 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 [2023-12-25 04:03:14,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 04:03:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-25 04:03:14,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-25 04:03:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-25 04:03:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2023-12-25 04:03:14,540 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 38 [2023-12-25 04:03:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 04:03:14,541 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-12-25 04:03:14,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-25 04:03:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2023-12-25 04:03:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-25 04:03:14,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 04:03:14,543 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 04:03:14,549 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 [2023-12-25 04:03:14,746 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 [2023-12-25 04:03:14,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 04:03:14,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 04:03:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1327714723, now seen corresponding path program 1 times [2023-12-25 04:03:14,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 04:03:14,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128820153] [2023-12-25 04:03:14,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 04:03:14,749 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 [2023-12-25 04:03:14,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 04:03:14,750 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) [2023-12-25 04:03:14,753 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 [2023-12-25 04:03:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 04:03:14,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 04:03:14,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 04:03:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 04:03:15,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 04:03:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-25 04:03:16,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 04:03:16,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128820153] [2023-12-25 04:03:16,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128820153] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 04:03:16,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 04:03:16,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-25 04:03:16,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989671803] [2023-12-25 04:03:16,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 04:03:16,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 04:03:16,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 04:03:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 04:03:16,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-25 04:03:16,236 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-25 04:03:22,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-25 04:03:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 04:03:22,461 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2023-12-25 04:03:22,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 04:03:22,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 38 [2023-12-25 04:03:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 04:03:22,470 INFO L225 Difference]: With dead ends: 47 [2023-12-25 04:03:22,470 INFO L226 Difference]: Without dead ends: 45 [2023-12-25 04:03:22,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-25 04:03:22,472 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-25 04:03:22,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 111 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2023-12-25 04:03:22,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-25 04:03:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2023-12-25 04:03:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-25 04:03:22,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2023-12-25 04:03:22,489 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 38 [2023-12-25 04:03:22,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 04:03:22,489 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2023-12-25 04:03:22,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-25 04:03:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2023-12-25 04:03:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-25 04:03:22,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 04:03:22,491 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 04:03:22,498 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 [2023-12-25 04:03:22,691 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 [2023-12-25 04:03:22,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 04:03:22,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 04:03:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1872990873, now seen corresponding path program 1 times [2023-12-25 04:03:22,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 04:03:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259406494] [2023-12-25 04:03:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 04:03:22,694 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 [2023-12-25 04:03:22,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 04:03:22,695 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) [2023-12-25 04:03:22,707 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 [2023-12-25 04:03:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 04:03:22,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 04:03:22,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 04:03:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 04:03:23,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 04:03:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 04:03:26,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 04:03:26,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259406494] [2023-12-25 04:03:26,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259406494] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 04:03:26,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 04:03:26,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 17 [2023-12-25 04:03:26,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523680458] [2023-12-25 04:03:26,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 04:03:26,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 04:03:26,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 04:03:26,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 04:03:26,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-12-25 04:03:26,746 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand has 17 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 10 states have internal predecessors, (24), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 8 states have call predecessors, (13), 9 states have call successors, (13) [2023-12-25 04:03:28,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 04:03:28,895 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2023-12-25 04:03:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 04:03:28,901 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 10 states have internal predecessors, (24), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 8 states have call predecessors, (13), 9 states have call successors, (13) Word has length 44 [2023-12-25 04:03:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 04:03:28,903 INFO L225 Difference]: With dead ends: 62 [2023-12-25 04:03:28,903 INFO L226 Difference]: Without dead ends: 60 [2023-12-25 04:03:28,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-12-25 04:03:28,904 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 51 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 04:03:28,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 201 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 04:03:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-25 04:03:28,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2023-12-25 04:03:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 36 states have internal predecessors, (44), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-25 04:03:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2023-12-25 04:03:28,948 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 44 [2023-12-25 04:03:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 04:03:28,948 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2023-12-25 04:03:28,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 10 states have internal predecessors, (24), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 8 states have call predecessors, (13), 9 states have call successors, (13) [2023-12-25 04:03:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2023-12-25 04:03:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-25 04:03:28,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 04:03:28,950 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 04:03:28,968 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 [2023-12-25 04:03:29,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2023-12-25 04:03:29,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 04:03:29,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 04:03:29,159 INFO L85 PathProgramCache]: Analyzing trace with hash 503918134, now seen corresponding path program 1 times [2023-12-25 04:03:29,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 04:03:29,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720539019] [2023-12-25 04:03:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 04:03:29,159 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 [2023-12-25 04:03:29,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 04:03:29,164 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2023-12-25 04:03:29,177 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 (5)] Waiting until timeout for monitored process [2023-12-25 04:03:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 04:03:29,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 04:03:29,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 04:03:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 04:03:29,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 04:03:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 04:03:29,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 04:03:29,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720539019] [2023-12-25 04:03:29,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720539019] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 04:03:29,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 04:03:29,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-12-25 04:03:29,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722056661] [2023-12-25 04:03:29,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 04:03:29,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 04:03:29,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 04:03:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 04:03:29,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-12-25 04:03:29,834 INFO L87 Difference]: Start difference. First operand 57 states and 79 transitions. Second operand has 18 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 10 states have internal predecessors, (24), 10 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-25 04:03:30,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 04:03:30,191 INFO L93 Difference]: Finished difference Result 76 states and 99 transitions. [2023-12-25 04:03:30,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 04:03:30,192 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 10 states have internal predecessors, (24), 10 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15) Word has length 49 [2023-12-25 04:03:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 04:03:30,192 INFO L225 Difference]: With dead ends: 76 [2023-12-25 04:03:30,192 INFO L226 Difference]: Without dead ends: 0 [2023-12-25 04:03:30,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2023-12-25 04:03:30,194 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 04:03:30,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 177 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 04:03:30,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-25 04:03:30,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-25 04:03:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 04:03:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-25 04:03:30,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2023-12-25 04:03:30,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 04:03:30,196 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-25 04:03:30,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 10 states have internal predecessors, (24), 10 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-25 04:03:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-25 04:03:30,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-25 04:03:30,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 04:03:30,207 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 (5)] Forceful destruction successful, exit code 0 [2023-12-25 04:03:30,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 [2023-12-25 04:03:30,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-25 04:03:31,818 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 60) the Hoare annotation is: (and (= |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~b~0#1|) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) (bvule |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~v~0#1| (_ bv0 32)) (bvule |ULTIMATE.start_main_~y~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) [2023-12-25 04:03:31,818 INFO L895 garLoopResultBuilder]: At program point L32(line 32) the Hoare annotation is: (and (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) [2023-12-25 04:03:31,818 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) [2023-12-25 04:03:31,819 INFO L895 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (and (bvule |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) [2023-12-25 04:03:31,819 INFO L895 garLoopResultBuilder]: At program point L53-1(lines 53 59) the Hoare annotation is: false [2023-12-25 04:03:31,819 INFO L895 garLoopResultBuilder]: At program point L53-2(lines 40 60) the Hoare annotation is: (and (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) (bvule |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~y~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (forall ((|ULTIMATE.start_main_~y~0#1| (_ BitVec 32))) (= (bvmul |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (bvadd (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~v~0#1|) (bvmul |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~u~0#1|))))) [2023-12-25 04:03:31,819 INFO L895 garLoopResultBuilder]: At program point L45-2(lines 45 51) the Hoare annotation is: false [2023-12-25 04:03:31,819 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (and (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) (bvule |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~y~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (forall ((|ULTIMATE.start_main_~y~0#1| (_ BitVec 32))) (= (bvmul |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (bvadd (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~v~0#1|) (bvmul |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~u~0#1|))))) [2023-12-25 04:03:31,819 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 40 60) no Hoare annotation was computed. [2023-12-25 04:03:31,820 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-12-25 04:03:31,820 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-25 04:03:31,820 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (and (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~y~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~y~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) [2023-12-25 04:03:31,820 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) [2023-12-25 04:03:31,820 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: false [2023-12-25 04:03:31,820 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 53 59) no Hoare annotation was computed. [2023-12-25 04:03:31,820 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: false [2023-12-25 04:03:31,820 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 45 51) no Hoare annotation was computed. [2023-12-25 04:03:31,820 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-25 04:03:31,820 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-12-25 04:03:31,821 INFO L895 garLoopResultBuilder]: At program point L30(line 30) the Hoare annotation is: (and (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) [2023-12-25 04:03:31,821 INFO L902 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2023-12-25 04:03:31,821 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2023-12-25 04:03:31,821 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-12-25 04:03:31,821 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2023-12-25 04:03:31,821 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-12-25 04:03:31,821 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-12-25 04:03:31,821 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2023-12-25 04:03:31,821 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-12-25 04:03:31,821 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-12-25 04:03:31,822 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-12-25 04:03:31,822 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-12-25 04:03:31,822 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2023-12-25 04:03:31,825 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-25 04:03:31,826 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 04:03:31,836 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall ULTIMATE.start_main_~y~0#1 : bv32 :: ~bvmul~32(~b~0, ~a~0) == ~bvadd~32(~bvmul~32(ULTIMATE.start_main_~y~0#1, ~v~0), ~bvmul~32(~x~0, ~u~0))) could not be translated [2023-12-25 04:03:31,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 04:03:31 BoogieIcfgContainer [2023-12-25 04:03:31,838 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 04:03:31,838 INFO L158 Benchmark]: Toolchain (without parser) took 18301.41ms. Allocated memory was 217.1MB in the beginning and 381.7MB in the end (delta: 164.6MB). Free memory was 163.0MB in the beginning and 299.4MB in the end (delta: -136.4MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2023-12-25 04:03:31,838 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 217.1MB. Free memory is still 163.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 04:03:31,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.36ms. Allocated memory is still 217.1MB. Free memory was 162.7MB in the beginning and 151.1MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-25 04:03:31,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.80ms. Allocated memory is still 217.1MB. Free memory was 151.1MB in the beginning and 149.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 04:03:31,840 INFO L158 Benchmark]: Boogie Preprocessor took 34.68ms. Allocated memory is still 217.1MB. Free memory was 149.4MB in the beginning and 147.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 04:03:31,840 INFO L158 Benchmark]: RCFGBuilder took 392.16ms. Allocated memory is still 217.1MB. Free memory was 147.6MB in the beginning and 134.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-25 04:03:31,841 INFO L158 Benchmark]: TraceAbstraction took 17645.47ms. Allocated memory was 217.1MB in the beginning and 381.7MB in the end (delta: 164.6MB). Free memory was 133.3MB in the beginning and 299.4MB in the end (delta: -166.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 04:03:31,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 217.1MB. Free memory is still 163.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 198.36ms. Allocated memory is still 217.1MB. Free memory was 162.7MB in the beginning and 151.1MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.80ms. Allocated memory is still 217.1MB. Free memory was 151.1MB in the beginning and 149.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.68ms. Allocated memory is still 217.1MB. Free memory was 149.4MB in the beginning and 147.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 392.16ms. Allocated memory is still 217.1MB. Free memory was 147.6MB in the beginning and 134.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 17645.47ms. Allocated memory was 217.1MB in the beginning and 381.7MB in the end (delta: 164.6MB). Free memory was 133.3MB in the beginning and 299.4MB in the end (delta: -166.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall ULTIMATE.start_main_~y~0#1 : bv32 :: ~bvmul~32(~b~0, ~a~0) == ~bvadd~32(~bvmul~32(ULTIMATE.start_main_~y~0#1, ~v~0), ~bvmul~32(~x~0, ~u~0))) could not be translated * 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 - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 530 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 415 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 115 mSDtfsCounter, 384 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 45 PreInvPairs, 54 NumberOfFragments, 168 HoareAnnotationTreeSize, 45 FormulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FormulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 293 ConstructedInterpolants, 2 QuantifiedInterpolants, 1000 SizeOfPredicates, 20 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 317/440 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((a >= 1) && (y == b)) && (x <= 1)) && (y <= 1)) && (b >= 1)) && (a <= 1)) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-12-25 04:03:31,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...