/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/hardness-nfm22/hardness_operatoramount_amount25_file-27.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 08:07:41,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 08:07:42,023 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 08:07:42,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 08:07:42,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 08:07:42,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 08:07:42,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 08:07:42,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 08:07:42,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 08:07:42,056 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 08:07:42,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 08:07:42,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 08:07:42,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 08:07:42,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 08:07:42,058 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 08:07:42,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 08:07:42,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 08:07:42,059 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 08:07:42,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 08:07:42,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 08:07:42,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 08:07:42,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 08:07:42,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 08:07:42,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 08:07:42,060 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 08:07:42,060 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 08:07:42,060 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 08:07:42,060 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 08:07:42,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 08:07:42,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 08:07:42,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 08:07:42,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 08:07:42,062 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 08:07:42,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 08:07:42,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 08:07:42,063 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 08:07:42,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 08:07:42,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 08:07:42,063 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 08:07:42,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 08:07:42,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 08:07:42,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 08:07:42,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 08:07:42,254 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 08:07:42,254 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 08:07:42,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-27.i [2023-12-24 08:07:43,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 08:07:43,416 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 08:07:43,417 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-27.i [2023-12-24 08:07:43,424 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628fe511c/b18ecc5740cd43e7b463a1dc2380d7b9/FLAG5a31540ee [2023-12-24 08:07:43,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628fe511c/b18ecc5740cd43e7b463a1dc2380d7b9 [2023-12-24 08:07:43,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 08:07:43,445 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 08:07:43,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 08:07:43,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 08:07:43,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 08:07:43,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ca08a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43, skipping insertion in model container [2023-12-24 08:07:43,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,481 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 08:07:43,595 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-27.i[915,928] [2023-12-24 08:07:43,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 08:07:43,647 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 08:07:43,656 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-27.i[915,928] [2023-12-24 08:07:43,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 08:07:43,688 INFO L206 MainTranslator]: Completed translation [2023-12-24 08:07:43,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43 WrapperNode [2023-12-24 08:07:43,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 08:07:43,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 08:07:43,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 08:07:43,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 08:07:43,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,719 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2023-12-24 08:07:43,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 08:07:43,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 08:07:43,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 08:07:43,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 08:07:43,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,742 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 08:07:43,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 08:07:43,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 08:07:43,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 08:07:43,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 08:07:43,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (1/1) ... [2023-12-24 08:07:43,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 08:07:43,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 08:07:43,809 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 08:07:43,832 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 08:07:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 08:07:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 08:07:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 08:07:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 08:07:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 08:07:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 08:07:43,913 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 08:07:43,918 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 08:07:44,117 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 08:07:44,176 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 08:07:44,176 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 08:07:44,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:07:44 BoogieIcfgContainer [2023-12-24 08:07:44,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 08:07:44,178 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 08:07:44,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 08:07:44,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 08:07:44,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 08:07:43" (1/3) ... [2023-12-24 08:07:44,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8158a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:07:44, skipping insertion in model container [2023-12-24 08:07:44,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:07:43" (2/3) ... [2023-12-24 08:07:44,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8158a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:07:44, skipping insertion in model container [2023-12-24 08:07:44,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:07:44" (3/3) ... [2023-12-24 08:07:44,189 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-27.i [2023-12-24 08:07:44,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 08:07:44,201 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 08:07:44,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 08:07:44,248 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;@1e06408d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 08:07:44,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 08:07:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 08:07:44,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 08:07:44,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:07:44,259 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:07:44,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:07:44,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:07:44,262 INFO L85 PathProgramCache]: Analyzing trace with hash -630640276, now seen corresponding path program 1 times [2023-12-24 08:07:44,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:07:44,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122505599] [2023-12-24 08:07:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:07:44,271 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 08:07:44,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:07:44,272 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 08:07:44,276 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 08:07:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:07:44,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 08:07:44,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:07:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-12-24 08:07:44,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:07:44,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:07:44,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122505599] [2023-12-24 08:07:44,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122505599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:07:44,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:07:44,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 08:07:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101170925] [2023-12-24 08:07:44,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:07:44,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 08:07:44,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:07:44,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 08:07:44,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 08:07:44,521 INFO L87 Difference]: Start difference. First operand has 44 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:07:44,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:07:44,567 INFO L93 Difference]: Finished difference Result 85 states and 149 transitions. [2023-12-24 08:07:44,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 08:07:44,573 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-12-24 08:07:44,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:07:44,577 INFO L225 Difference]: With dead ends: 85 [2023-12-24 08:07:44,577 INFO L226 Difference]: Without dead ends: 42 [2023-12-24 08:07:44,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 08:07:44,582 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 08:07:44,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 08:07:44,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-24 08:07:44,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-24 08:07:44,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 08:07:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-12-24 08:07:44,609 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 103 [2023-12-24 08:07:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:07:44,610 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-12-24 08:07:44,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:07:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-12-24 08:07:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 08:07:44,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:07:44,612 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:07:44,616 INFO L552 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)] Ended with exit code 0 [2023-12-24 08:07:44,816 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 08:07:44,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:07:44,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:07:44,817 INFO L85 PathProgramCache]: Analyzing trace with hash 57891882, now seen corresponding path program 1 times [2023-12-24 08:07:44,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:07:44,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140404650] [2023-12-24 08:07:44,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:07:44,818 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 08:07:44,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:07:44,819 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 08:07:44,822 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 08:07:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:07:44,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 08:07:45,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:07:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 114 proven. 117 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-12-24 08:07:54,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:08:22,778 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 164 DAG size of output: 160 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 08:08:37,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:08:37,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140404650] [2023-12-24 08:08:37,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140404650] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:08:37,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [446570839] [2023-12-24 08:08:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:08:37,825 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 08:08:37,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 08:08:37,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 08:08:37,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-24 08:08:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:08:38,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 08:08:38,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:08:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 95 proven. 84 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-12-24 08:08:43,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:09:12,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [446570839] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:09:12,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 08:09:12,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 27 [2023-12-24 08:09:12,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421711629] [2023-12-24 08:09:12,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 08:09:12,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-24 08:09:12,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:09:12,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-24 08:09:12,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056 [2023-12-24 08:09:12,456 INFO L87 Difference]: Start difference. First operand 42 states and 62 transitions. Second operand has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 26 states have internal predecessors, (61), 7 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-24 08:09:16,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:09:16,535 INFO L93 Difference]: Finished difference Result 191 states and 256 transitions. [2023-12-24 08:09:16,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-24 08:09:16,537 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 26 states have internal predecessors, (61), 7 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 103 [2023-12-24 08:09:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:09:16,539 INFO L225 Difference]: With dead ends: 191 [2023-12-24 08:09:16,539 INFO L226 Difference]: Without dead ends: 189 [2023-12-24 08:09:16,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=728, Invalid=3054, Unknown=0, NotChecked=0, Total=3782 [2023-12-24 08:09:16,542 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 208 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-24 08:09:16,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 445 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-24 08:09:16,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-24 08:09:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 98. [2023-12-24 08:09:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 58 states have internal predecessors, (69), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 08:09:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2023-12-24 08:09:16,592 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 103 [2023-12-24 08:09:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:09:16,592 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2023-12-24 08:09:16,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 26 states have internal predecessors, (61), 7 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-24 08:09:16,592 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2023-12-24 08:09:16,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 08:09:16,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:09:16,594 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:09:16,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-24 08:09:16,801 INFO L552 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)] Ended with exit code 0 [2023-12-24 08:09:16,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 08:09:16,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:09:16,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:09:16,998 INFO L85 PathProgramCache]: Analyzing trace with hash 115150184, now seen corresponding path program 1 times [2023-12-24 08:09:16,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:09:16,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124687599] [2023-12-24 08:09:16,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:09:16,998 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 08:09:16,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:09:17,000 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) [2023-12-24 08:09:17,004 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 [2023-12-24 08:09:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:09:17,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 08:09:17,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:09:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 114 proven. 117 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-12-24 08:09:24,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:09:59,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:09:59,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124687599] [2023-12-24 08:09:59,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124687599] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:09:59,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [721192995] [2023-12-24 08:09:59,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:09:59,157 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 08:09:59,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 08:09:59,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 08:09:59,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-24 08:09:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:09:59,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-24 08:09:59,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:10:11,732 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 340 proven. 99 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-24 08:10:11,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:10:50,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [721192995] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:10:50,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 08:10:50,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 36 [2023-12-24 08:10:50,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662555239] [2023-12-24 08:10:50,639 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 08:10:50,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-24 08:10:50,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:10:50,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-24 08:10:50,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1566, Unknown=0, NotChecked=0, Total=1980 [2023-12-24 08:10:50,642 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 10 states have call successors, (34), 10 states have call predecessors, (34), 14 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2023-12-24 08:11:05,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:11:05,225 INFO L93 Difference]: Finished difference Result 201 states and 263 transitions. [2023-12-24 08:11:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-24 08:11:05,226 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 10 states have call successors, (34), 10 states have call predecessors, (34), 14 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) Word has length 103 [2023-12-24 08:11:05,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:11:05,227 INFO L225 Difference]: With dead ends: 201 [2023-12-24 08:11:05,227 INFO L226 Difference]: Without dead ends: 199 [2023-12-24 08:11:05,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1866 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=1352, Invalid=5454, Unknown=0, NotChecked=0, Total=6806 [2023-12-24 08:11:05,230 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 199 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-24 08:11:05,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 430 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-24 08:11:05,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-24 08:11:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 151. [2023-12-24 08:11:05,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 88 states have internal predecessors, (98), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-24 08:11:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 200 transitions. [2023-12-24 08:11:05,257 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 200 transitions. Word has length 103 [2023-12-24 08:11:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:11:05,258 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 200 transitions. [2023-12-24 08:11:05,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 10 states have call successors, (34), 10 states have call predecessors, (34), 14 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2023-12-24 08:11:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 200 transitions. [2023-12-24 08:11:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 08:11:05,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:11:05,260 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:11:05,264 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 [2023-12-24 08:11:05,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-24 08:11:05,664 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 08:11:05,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:11:05,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:11:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash -751454744, now seen corresponding path program 1 times [2023-12-24 08:11:05,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:11:05,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360652385] [2023-12-24 08:11:05,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:11:05,667 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 08:11:05,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:11:05,669 INFO L229 MonitoredProcess]: Starting monitored process 7 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 08:11:05,670 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 (7)] Waiting until timeout for monitored process [2023-12-24 08:11:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:11:05,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 08:11:05,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:11:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 08:11:06,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:11:06,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:11:06,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360652385] [2023-12-24 08:11:06,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360652385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:11:06,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:11:06,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 08:11:06,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067396070] [2023-12-24 08:11:06,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:11:06,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 08:11:06,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:11:06,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 08:11:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 08:11:06,371 INFO L87 Difference]: Start difference. First operand 151 states and 200 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:11:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:11:06,700 INFO L93 Difference]: Finished difference Result 249 states and 335 transitions. [2023-12-24 08:11:06,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 08:11:06,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-12-24 08:11:06,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:11:06,710 INFO L225 Difference]: With dead ends: 249 [2023-12-24 08:11:06,710 INFO L226 Difference]: Without dead ends: 152 [2023-12-24 08:11:06,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 08:11:06,718 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 49 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 08:11:06,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 224 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 08:11:06,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-24 08:11:06,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 145. [2023-12-24 08:11:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 81 states have (on average 1.0864197530864197) internal successors, (88), 82 states have internal predecessors, (88), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-24 08:11:06,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 190 transitions. [2023-12-24 08:11:06,741 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 190 transitions. Word has length 103 [2023-12-24 08:11:06,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:11:06,742 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 190 transitions. [2023-12-24 08:11:06,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:11:06,742 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 190 transitions. [2023-12-24 08:11:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-24 08:11:06,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:11:06,744 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:11:06,750 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 (7)] Forceful destruction successful, exit code 0 [2023-12-24 08:11:06,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 08:11:06,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:11:06,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:11:06,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1785144065, now seen corresponding path program 1 times [2023-12-24 08:11:06,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:11:06,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473785534] [2023-12-24 08:11:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:11:06,951 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 08:11:06,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:11:06,952 INFO L229 MonitoredProcess]: Starting monitored process 8 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 08:11:06,964 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 (8)] Waiting until timeout for monitored process [2023-12-24 08:11:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:11:07,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 08:11:07,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:11:07,748 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 08:11:07,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:11:07,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:11:07,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473785534] [2023-12-24 08:11:07,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473785534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:11:07,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:11:07,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 08:11:07,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075235926] [2023-12-24 08:11:07,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:11:07,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 08:11:07,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:11:07,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 08:11:07,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-24 08:11:07,766 INFO L87 Difference]: Start difference. First operand 145 states and 190 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:11:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:11:08,074 INFO L93 Difference]: Finished difference Result 145 states and 190 transitions. [2023-12-24 08:11:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 08:11:08,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 104 [2023-12-24 08:11:08,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:11:08,082 INFO L225 Difference]: With dead ends: 145 [2023-12-24 08:11:08,082 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 08:11:08,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-24 08:11:08,083 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 08:11:08,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 67 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 08:11:08,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 08:11:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 08:11:08,084 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 08:11:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 08:11:08,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2023-12-24 08:11:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:11:08,084 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 08:11:08,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 08:11:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 08:11:08,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 08:11:08,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 08:11:08,099 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 (8)] Forceful destruction successful, exit code 0 [2023-12-24 08:11:08,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 08:11:08,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 08:11:10,635 INFO L899 garLoopResultBuilder]: For program point L85(lines 60 86) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 58) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,636 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,636 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,636 INFO L895 garLoopResultBuilder]: At program point L98-2(lines 98 104) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point L98-3(lines 98 104) no Hoare annotation was computed. [2023-12-24 08:11:10,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 57) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 49) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 49) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 59) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (and (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L62-1(line 62) the Hoare annotation is: (and (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,637 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,638 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-12-24 08:11:10,638 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,638 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,638 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,638 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-24 08:11:10,638 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-12-24 08:11:10,638 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2023-12-24 08:11:10,638 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,638 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 08:11:10,638 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 08:11:10,638 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 08:11:10,638 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 08:11:10,638 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 08:11:10,640 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-24 08:11:10,641 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 08:11:10,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 08:11:10 BoogieIcfgContainer [2023-12-24 08:11:10,648 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 08:11:10,648 INFO L158 Benchmark]: Toolchain (without parser) took 207203.32ms. Allocated memory was 362.8MB in the beginning and 1.2GB in the end (delta: 787.5MB). Free memory was 311.1MB in the beginning and 688.4MB in the end (delta: -377.3MB). Peak memory consumption was 411.2MB. Max. memory is 8.0GB. [2023-12-24 08:11:10,648 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 191.9MB. Free memory was 141.4MB in the beginning and 141.2MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 08:11:10,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.67ms. Allocated memory is still 362.8MB. Free memory was 310.6MB in the beginning and 298.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-24 08:11:10,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.94ms. Allocated memory is still 362.8MB. Free memory was 298.0MB in the beginning and 295.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 08:11:10,649 INFO L158 Benchmark]: Boogie Preprocessor took 50.02ms. Allocated memory is still 362.8MB. Free memory was 295.9MB in the beginning and 293.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 08:11:10,649 INFO L158 Benchmark]: RCFGBuilder took 406.49ms. Allocated memory is still 362.8MB. Free memory was 293.3MB in the beginning and 273.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-24 08:11:10,649 INFO L158 Benchmark]: TraceAbstraction took 206469.31ms. Allocated memory was 362.8MB in the beginning and 1.2GB in the end (delta: 787.5MB). Free memory was 272.8MB in the beginning and 688.9MB in the end (delta: -416.1MB). Peak memory consumption was 372.4MB. Max. memory is 8.0GB. [2023-12-24 08:11:10,650 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 191.9MB. Free memory was 141.4MB in the beginning and 141.2MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 241.67ms. Allocated memory is still 362.8MB. Free memory was 310.6MB in the beginning and 298.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.94ms. Allocated memory is still 362.8MB. Free memory was 298.0MB in the beginning and 295.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.02ms. Allocated memory is still 362.8MB. Free memory was 295.9MB in the beginning and 293.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 406.49ms. Allocated memory is still 362.8MB. Free memory was 293.3MB in the beginning and 273.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 206469.31ms. Allocated memory was 362.8MB in the beginning and 1.2GB in the end (delta: 787.5MB). Free memory was 272.8MB in the beginning and 688.9MB in the end (delta: -416.1MB). Peak memory consumption was 372.4MB. 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 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 206.4s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 482 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 482 mSDsluCounter, 1225 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 980 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1948 IncrementalHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 245 mSDtfsCounter, 1948 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 827 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2913 ImplicationChecksByTransitivity, 62.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=3, InterpolantAutomatonStates: 104, 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, 5 MinimizatonAttempts, 146 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 120 PreInvPairs, 156 NumberOfFragments, 334 HoareAnnotationTreeSize, 120 FormulaSimplifications, 7932 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FormulaSimplificationsInter, 2784 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 182.0s InterpolantComputationTime, 722 NumberOfCodeBlocks, 722 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 715 ConstructedInterpolants, 1 QuantifiedInterpolants, 9372 SizeOfPredicates, 91 NumberOfNonLiveVariables, 1192 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 3391/3808 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: 98]: Loop Invariant Derived loop invariant: (((((var_1_3 <= 1073741823) && (var_1_5 <= 1073741823)) && (var_1_5 >= 0)) && (((last_1_var_1_13 + 128) % 4294967296) == 0)) && (((128 + var_1_13) % 4294967296) == 0)) RESULT: Ultimate proved your program to be correct! [2023-12-24 08:11:10,711 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...