/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/loop-new/count_by_1_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 23:04:20,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 23:04:20,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 23:04:20,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 23:04:20,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 23:04:20,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 23:04:20,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 23:04:20,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 23:04:20,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 23:04:20,656 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 23:04:20,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 23:04:20,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 23:04:20,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 23:04:20,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 23:04:20,657 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 23:04:20,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 23:04:20,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 23:04:20,658 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 23:04:20,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 23:04:20,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 23:04:20,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 23:04:20,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 23:04:20,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 23:04:20,661 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 23:04:20,664 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 23:04:20,664 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 23:04:20,664 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 23:04:20,664 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 23:04:20,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 23:04:20,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 23:04:20,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 23:04:20,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 23:04:20,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 23:04:20,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 23:04:20,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 23:04:20,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 23:04:20,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 23:04:20,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 23:04:20,666 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 23:04:20,667 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 23:04:20,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 23:04:20,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 23:04:20,667 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 23:04:20,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 23:04:20,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 23:04:20,668 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 23:04:20,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 23:04:20,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 23:04:20,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 23:04:20,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 23:04:20,840 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 23:04:20,840 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 23:04:20,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2023-12-24 23:04:21,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 23:04:21,969 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 23:04:21,969 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2023-12-24 23:04:21,974 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f774453/9f3940e205df4d8aa535f7fb58598a1c/FLAG250168a5f [2023-12-24 23:04:21,984 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f774453/9f3940e205df4d8aa535f7fb58598a1c [2023-12-24 23:04:21,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 23:04:21,986 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 23:04:21,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 23:04:21,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 23:04:21,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 23:04:21,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:04:21" (1/1) ... [2023-12-24 23:04:21,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d912d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:21, skipping insertion in model container [2023-12-24 23:04:21,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:04:21" (1/1) ... [2023-12-24 23:04:22,008 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 23:04:22,118 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i[891,904] [2023-12-24 23:04:22,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 23:04:22,139 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 23:04:22,148 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i[891,904] [2023-12-24 23:04:22,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 23:04:22,159 INFO L206 MainTranslator]: Completed translation [2023-12-24 23:04:22,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22 WrapperNode [2023-12-24 23:04:22,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 23:04:22,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 23:04:22,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 23:04:22,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 23:04:22,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,184 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-12-24 23:04:22,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 23:04:22,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 23:04:22,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 23:04:22,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 23:04:22,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,200 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]. [2023-12-24 23:04:22,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 23:04:22,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 23:04:22,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 23:04:22,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 23:04:22,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (1/1) ... [2023-12-24 23:04:22,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 23:04:22,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 23:04:22,237 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) [2023-12-24 23:04:22,245 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 [2023-12-24 23:04:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 23:04:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 23:04:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 23:04:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 23:04:22,312 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 23:04:22,314 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 23:04:22,413 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 23:04:22,436 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 23:04:22,436 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 23:04:22,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:04:22 BoogieIcfgContainer [2023-12-24 23:04:22,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 23:04:22,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 23:04:22,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 23:04:22,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 23:04:22,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 11:04:21" (1/3) ... [2023-12-24 23:04:22,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eeb3b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:04:22, skipping insertion in model container [2023-12-24 23:04:22,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:22" (2/3) ... [2023-12-24 23:04:22,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eeb3b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:04:22, skipping insertion in model container [2023-12-24 23:04:22,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:04:22" (3/3) ... [2023-12-24 23:04:22,446 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2023-12-24 23:04:22,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 23:04:22,461 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 23:04:22,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 23:04:22,518 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;@6ef645b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 23:04:22,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 23:04:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-12-24 23:04:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-24 23:04:22,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:04:22,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-24 23:04:22,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:04:22,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:04:22,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1886861, now seen corresponding path program 1 times [2023-12-24 23:04:22,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:04:22,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790530954] [2023-12-24 23:04:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:04:22,546 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 [2023-12-24 23:04:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:04:22,548 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) [2023-12-24 23:04:22,554 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 [2023-12-24 23:04:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:04:22,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 23:04:22,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:04:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:04:22,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 23:04:22,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:04:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790530954] [2023-12-24 23:04:22,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790530954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 23:04:22,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 23:04:22,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 23:04:22,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310283905] [2023-12-24 23:04:22,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 23:04:22,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 23:04:22,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:04:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 23:04:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 23:04:22,705 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-24 23:04:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:04:22,746 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2023-12-24 23:04:22,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 23:04:22,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-24 23:04:22,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:04:22,753 INFO L225 Difference]: With dead ends: 18 [2023-12-24 23:04:22,754 INFO L226 Difference]: Without dead ends: 9 [2023-12-24 23:04:22,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 23:04:22,759 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:04:22,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 23:04:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-24 23:04:22,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-24 23:04:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-12-24 23:04:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-24 23:04:22,785 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-24 23:04:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:04:22,785 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-24 23:04:22,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-24 23:04:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-24 23:04:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-24 23:04:22,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:04:22,786 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-24 23:04:22,789 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 [2023-12-24 23:04:22,989 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 [2023-12-24 23:04:22,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:04:22,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:04:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash 382094865, now seen corresponding path program 1 times [2023-12-24 23:04:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:04:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598366868] [2023-12-24 23:04:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:04:22,991 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 [2023-12-24 23:04:22,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:04:22,993 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) [2023-12-24 23:04:22,995 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 [2023-12-24 23:04:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:04:23,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 23:04:23,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:04:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:04:23,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:04:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:04:23,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:04:23,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598366868] [2023-12-24 23:04:23,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598366868] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:04:23,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:04:23,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-24 23:04:23,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249399635] [2023-12-24 23:04:23,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:04:23,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 23:04:23,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:04:23,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 23:04:23,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 23:04:23,087 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2023-12-24 23:04:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:04:23,181 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-12-24 23:04:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 23:04:23,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-24 23:04:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:04:23,182 INFO L225 Difference]: With dead ends: 13 [2023-12-24 23:04:23,182 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 23:04:23,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-12-24 23:04:23,183 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:04:23,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 23:04:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 23:04:23,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 23:04:23,184 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) [2023-12-24 23:04:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 23:04:23,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2023-12-24 23:04:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:04:23,185 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 23:04:23,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2023-12-24 23:04:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 23:04:23,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 23:04:23,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 23:04:23,189 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 [2023-12-24 23:04:23,389 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 [2023-12-24 23:04:23,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 23:04:23,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 23:04:23,407 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 23:04:23,407 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 23:04:23,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 23:04:23,408 INFO L895 garLoopResultBuilder]: At program point L26-3(lines 26 28) the Hoare annotation is: (bvsle |ULTIMATE.start_main_~i~0#1| (_ bv1000000 32)) [2023-12-24 23:04:23,408 INFO L899 garLoopResultBuilder]: For program point L26-4(lines 26 28) no Hoare annotation was computed. [2023-12-24 23:04:23,408 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2023-12-24 23:04:23,408 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2023-12-24 23:04:23,411 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-24 23:04:23,412 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 23:04:23,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 11:04:23 BoogieIcfgContainer [2023-12-24 23:04:23,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 23:04:23,420 INFO L158 Benchmark]: Toolchain (without parser) took 1433.43ms. Allocated memory was 177.2MB in the beginning and 264.2MB in the end (delta: 87.0MB). Free memory was 119.0MB in the beginning and 226.3MB in the end (delta: -107.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 23:04:23,420 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 23:04:23,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.07ms. Allocated memory is still 177.2MB. Free memory was 119.0MB in the beginning and 107.8MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-24 23:04:23,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.70ms. Allocated memory is still 177.2MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-24 23:04:23,422 INFO L158 Benchmark]: Boogie Preprocessor took 22.96ms. Allocated memory is still 177.2MB. Free memory was 106.4MB in the beginning and 104.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 23:04:23,422 INFO L158 Benchmark]: RCFGBuilder took 228.33ms. Allocated memory is still 177.2MB. Free memory was 104.7MB in the beginning and 93.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-24 23:04:23,423 INFO L158 Benchmark]: TraceAbstraction took 981.28ms. Allocated memory was 177.2MB in the beginning and 264.2MB in the end (delta: 87.0MB). Free memory was 93.2MB in the beginning and 226.3MB in the end (delta: -133.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 23:04:23,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 173.07ms. Allocated memory is still 177.2MB. Free memory was 119.0MB in the beginning and 107.8MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.70ms. Allocated memory is still 177.2MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.96ms. Allocated memory is still 177.2MB. Free memory was 106.4MB in the beginning and 104.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 228.33ms. Allocated memory is still 177.2MB. Free memory was 104.7MB in the beginning and 93.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 981.28ms. Allocated memory was 177.2MB in the beginning and 264.2MB in the end (delta: 87.0MB). Free memory was 93.2MB in the beginning and 226.3MB in the end (delta: -133.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 3 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FormulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FormulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 4 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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: 26]: Loop Invariant Derived loop invariant: (i <= 1000000) RESULT: Ultimate proved your program to be correct! [2023-12-24 23:04:23,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...