/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/bitvector/soft_float_4-1.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:42:16,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:42:16,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:42:16,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:42:16,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:42:16,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:42:16,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:42:16,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:42:16,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:42:16,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:42:16,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:42:16,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:42:16,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:42:16,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:42:16,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:42:16,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:42:16,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:42:16,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:42:16,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:42:16,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:42:16,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:42:16,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:42:16,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:42:16,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:42:16,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:42:16,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:42:16,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:42:16,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:42:16,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:42:16,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:42:16,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:42:16,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:42:16,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:42:16,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:42:16,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:42:16,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:42:16,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:42:16,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:42:16,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:42:16,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:42:16,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:42:16,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:42:16,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:42:16,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:42:16,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:42:16,329 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:42:16,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:42:16,330 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:42:16,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:42:16,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:42:16,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:42:16,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:42:16,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:42:16,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:42:16,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:42:16,332 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:42:16,332 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:42:16,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:42:16,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:42:16,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:42:16,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:42:16,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:42:16,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:42:16,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:42:16,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:42:16,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:42:16,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:42:16,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:42:16,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:42:16,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:42:16,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:42:16,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:42:16,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:42:16,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:42:16,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:42:16,818 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:42:16,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-1.c.cil.c [2022-10-16 17:42:16,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e862bff4f/55467ba3ecdf44eca63f48d64b221118/FLAGff9cfbdfe [2022-10-16 17:42:17,526 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:42:17,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-1.c.cil.c [2022-10-16 17:42:17,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e862bff4f/55467ba3ecdf44eca63f48d64b221118/FLAGff9cfbdfe [2022-10-16 17:42:17,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e862bff4f/55467ba3ecdf44eca63f48d64b221118 [2022-10-16 17:42:17,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:42:17,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:42:17,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:42:17,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:42:17,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:42:17,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:42:17" (1/1) ... [2022-10-16 17:42:17,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aaba20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:17, skipping insertion in model container [2022-10-16 17:42:17,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:42:17" (1/1) ... [2022-10-16 17:42:17,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:42:17,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:42:18,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-1.c.cil.c[729,742] [2022-10-16 17:42:18,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:42:18,279 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:42:18,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-1.c.cil.c[729,742] [2022-10-16 17:42:18,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:42:18,354 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:42:18,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18 WrapperNode [2022-10-16 17:42:18,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:42:18,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:42:18,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:42:18,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:42:18,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,419 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-10-16 17:42:18,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:42:18,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:42:18,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:42:18,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:42:18,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,455 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:42:18,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:42:18,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:42:18,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:42:18,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (1/1) ... [2022-10-16 17:42:18,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:42:18,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:42:18,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:42:18,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:42:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:42:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:42:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-10-16 17:42:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-10-16 17:42:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:42:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:42:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-10-16 17:42:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-10-16 17:42:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 17:42:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 17:42:18,741 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:42:18,744 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:42:19,425 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:42:19,442 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:42:19,445 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 17:42:19,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:42:19 BoogieIcfgContainer [2022-10-16 17:42:19,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:42:19,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:42:19,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:42:19,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:42:19,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:42:17" (1/3) ... [2022-10-16 17:42:19,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a04d561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:42:19, skipping insertion in model container [2022-10-16 17:42:19,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:42:18" (2/3) ... [2022-10-16 17:42:19,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a04d561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:42:19, skipping insertion in model container [2022-10-16 17:42:19,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:42:19" (3/3) ... [2022-10-16 17:42:19,463 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-1.c.cil.c [2022-10-16 17:42:19,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:42:19,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-10-16 17:42:19,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:42:19,607 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@36d80678, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:42:19,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-10-16 17:42:19,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 98 states have (on average 1.7959183673469388) internal successors, (176), 126 states have internal predecessors, (176), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-16 17:42:19,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:42:19,626 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:42:19,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:19,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 17:42:19,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:42:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1595418374, now seen corresponding path program 1 times [2022-10-16 17:42:19,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:42:19,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877556992] [2022-10-16 17:42:19,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:42:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:42:19,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:42:19,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877556992] [2022-10-16 17:42:19,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877556992] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:42:19,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:42:19,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:42:19,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110723552] [2022-10-16 17:42:19,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:42:19,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 17:42:19,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:42:19,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 17:42:19,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 17:42:19,958 INFO L87 Difference]: Start difference. First operand has 138 states, 98 states have (on average 1.7959183673469388) internal successors, (176), 126 states have internal predecessors, (176), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:42:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:42:20,050 INFO L93 Difference]: Finished difference Result 271 states and 388 transitions. [2022-10-16 17:42:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 17:42:20,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:42:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:42:20,070 INFO L225 Difference]: With dead ends: 271 [2022-10-16 17:42:20,070 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 17:42:20,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 17:42:20,094 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:42:20,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:42:20,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 17:42:20,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-10-16 17:42:20,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 90 states have (on average 1.6222222222222222) internal successors, (146), 116 states have internal predecessors, (146), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:42:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 159 transitions. [2022-10-16 17:42:20,155 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 159 transitions. Word has length 9 [2022-10-16 17:42:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:42:20,155 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 159 transitions. [2022-10-16 17:42:20,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:42:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 159 transitions. [2022-10-16 17:42:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:42:20,158 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:42:20,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:20,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:42:20,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 17:42:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:42:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1596359722, now seen corresponding path program 1 times [2022-10-16 17:42:20,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:42:20,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454332771] [2022-10-16 17:42:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:42:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:20,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:42:20,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:42:20,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454332771] [2022-10-16 17:42:20,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454332771] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:42:20,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:42:20,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:42:20,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059766116] [2022-10-16 17:42:20,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:42:20,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:42:20,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:42:20,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:42:20,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:42:20,291 INFO L87 Difference]: Start difference. First operand 126 states and 159 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:42:20,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:42:20,431 INFO L93 Difference]: Finished difference Result 314 states and 406 transitions. [2022-10-16 17:42:20,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:42:20,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:42:20,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:42:20,436 INFO L225 Difference]: With dead ends: 314 [2022-10-16 17:42:20,436 INFO L226 Difference]: Without dead ends: 191 [2022-10-16 17:42:20,438 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 [2022-10-16 17:42:20,440 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 100 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:42:20,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 425 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:42:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-10-16 17:42:20,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2022-10-16 17:42:20,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.6304347826086956) internal successors, (225), 164 states have internal predecessors, (225), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:42:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 238 transitions. [2022-10-16 17:42:20,467 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 238 transitions. Word has length 9 [2022-10-16 17:42:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:42:20,468 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 238 transitions. [2022-10-16 17:42:20,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:42:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 238 transitions. [2022-10-16 17:42:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:42:20,469 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:42:20,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:20,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:42:20,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 17:42:20,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:42:20,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1531260939, now seen corresponding path program 1 times [2022-10-16 17:42:20,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:42:20,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244456517] [2022-10-16 17:42:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:20,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:42:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:42:20,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:42:20,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244456517] [2022-10-16 17:42:20,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244456517] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:42:20,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:42:20,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:42:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64198479] [2022-10-16 17:42:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:42:20,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:42:20,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:42:20,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:42:20,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:42:20,711 INFO L87 Difference]: Start difference. First operand 175 states and 238 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:42:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:42:20,850 INFO L93 Difference]: Finished difference Result 325 states and 427 transitions. [2022-10-16 17:42:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:42:20,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:42:20,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:42:20,859 INFO L225 Difference]: With dead ends: 325 [2022-10-16 17:42:20,859 INFO L226 Difference]: Without dead ends: 155 [2022-10-16 17:42:20,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:42:20,868 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 33 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:42:20,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 435 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:42:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-16 17:42:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 140. [2022-10-16 17:42:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 129 states have internal predecessors, (167), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:42:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 180 transitions. [2022-10-16 17:42:20,906 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 180 transitions. Word has length 12 [2022-10-16 17:42:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:42:20,909 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 180 transitions. [2022-10-16 17:42:20,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:42:20,910 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 180 transitions. [2022-10-16 17:42:20,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:42:20,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:42:20,911 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:20,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:42:20,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 17:42:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:42:20,917 INFO L85 PathProgramCache]: Analyzing trace with hash -536894282, now seen corresponding path program 1 times [2022-10-16 17:42:20,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:42:20,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398524967] [2022-10-16 17:42:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:20,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:42:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:42:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:42:21,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:42:21,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398524967] [2022-10-16 17:42:21,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398524967] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:42:21,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132456623] [2022-10-16 17:42:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:21,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:42:21,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:42:21,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:42:21,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:42:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:21,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:42:21,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:42:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:42:21,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:42:21,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132456623] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:42:21,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:42:21,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 17:42:21,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610422815] [2022-10-16 17:42:21,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:42:21,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:42:21,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:42:21,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:42:21,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:42:21,325 INFO L87 Difference]: Start difference. First operand 140 states and 180 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:42:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:42:21,506 INFO L93 Difference]: Finished difference Result 213 states and 286 transitions. [2022-10-16 17:42:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:42:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 17:42:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:42:21,509 INFO L225 Difference]: With dead ends: 213 [2022-10-16 17:42:21,510 INFO L226 Difference]: Without dead ends: 209 [2022-10-16 17:42:21,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:42:21,512 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 145 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:42:21,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 492 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:42:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-16 17:42:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 188. [2022-10-16 17:42:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 152 states have (on average 1.631578947368421) internal successors, (248), 176 states have internal predecessors, (248), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:42:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 261 transitions. [2022-10-16 17:42:21,534 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 261 transitions. Word has length 16 [2022-10-16 17:42:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:42:21,534 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 261 transitions. [2022-10-16 17:42:21,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:42:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 261 transitions. [2022-10-16 17:42:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:42:21,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:42:21,536 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:21,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 17:42:21,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:42:21,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 17:42:21,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:42:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 536146499, now seen corresponding path program 1 times [2022-10-16 17:42:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:42:21,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889053193] [2022-10-16 17:42:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:21,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:42:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:21,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:42:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:42:21,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:42:21,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889053193] [2022-10-16 17:42:21,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889053193] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:42:21,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135438643] [2022-10-16 17:42:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:21,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:42:21,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:42:21,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:42:21,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:42:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:21,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:42:21,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:42:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:42:21,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:42:21,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135438643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:42:21,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:42:21,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-10-16 17:42:21,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561777451] [2022-10-16 17:42:21,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:42:21,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:42:21,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:42:21,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:42:21,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:42:21,952 INFO L87 Difference]: Start difference. First operand 188 states and 261 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:42:22,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:42:22,018 INFO L93 Difference]: Finished difference Result 194 states and 267 transitions. [2022-10-16 17:42:22,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:42:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-10-16 17:42:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:42:22,022 INFO L225 Difference]: With dead ends: 194 [2022-10-16 17:42:22,022 INFO L226 Difference]: Without dead ends: 193 [2022-10-16 17:42:22,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:42:22,024 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 3 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:42:22,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 281 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:42:22,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-10-16 17:42:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2022-10-16 17:42:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 152 states have (on average 1.618421052631579) internal successors, (246), 175 states have internal predecessors, (246), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:42:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 259 transitions. [2022-10-16 17:42:22,044 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 259 transitions. Word has length 17 [2022-10-16 17:42:22,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:42:22,045 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 259 transitions. [2022-10-16 17:42:22,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:42:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 259 transitions. [2022-10-16 17:42:22,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 17:42:22,047 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:42:22,047 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:22,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:42:22,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:42:22,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 17:42:22,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:42:22,264 INFO L85 PathProgramCache]: Analyzing trace with hash 328120414, now seen corresponding path program 1 times [2022-10-16 17:42:22,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:42:22,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76374809] [2022-10-16 17:42:22,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:22,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:42:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:42:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:42:22,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:42:22,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76374809] [2022-10-16 17:42:22,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76374809] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:42:22,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204276084] [2022-10-16 17:42:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:22,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:42:22,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:42:22,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:42:22,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:42:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:42:22,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:42:22,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:42:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:42:22,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:42:22,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204276084] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:42:22,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:42:22,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 17:42:22,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23876091] [2022-10-16 17:42:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:42:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:42:22,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:42:22,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:42:22,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:42:22,508 INFO L87 Difference]: Start difference. First operand 187 states and 259 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:42:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:42:22,656 INFO L93 Difference]: Finished difference Result 234 states and 315 transitions. [2022-10-16 17:42:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:42:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-10-16 17:42:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:42:22,660 INFO L225 Difference]: With dead ends: 234 [2022-10-16 17:42:22,661 INFO L226 Difference]: Without dead ends: 229 [2022-10-16 17:42:22,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:42:22,666 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 129 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:42:22,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 515 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:42:22,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-10-16 17:42:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 207. [2022-10-16 17:42:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 172 states have (on average 1.5872093023255813) internal successors, (273), 195 states have internal predecessors, (273), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 17:42:22,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 286 transitions. [2022-10-16 17:42:22,705 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 286 transitions. Word has length 18 [2022-10-16 17:42:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:42:22,708 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 286 transitions. [2022-10-16 17:42:22,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:42:22,709 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 286 transitions. [2022-10-16 17:42:22,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:42:22,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:42:22,713 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:22,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:42:22,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:42:22,928 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 17:42:22,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:42:22,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1583971093, now seen corresponding path program 1 times [2022-10-16 17:42:22,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:42:22,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964165916] [2022-10-16 17:42:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:42:22,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:42:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:42:22,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:42:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:42:23,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:42:23,021 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:42:23,023 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2022-10-16 17:42:23,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2022-10-16 17:42:23,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2022-10-16 17:42:23,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2022-10-16 17:42:23,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2022-10-16 17:42:23,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2022-10-16 17:42:23,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2022-10-16 17:42:23,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2022-10-16 17:42:23,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2022-10-16 17:42:23,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2022-10-16 17:42:23,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2022-10-16 17:42:23,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2022-10-16 17:42:23,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2022-10-16 17:42:23,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2022-10-16 17:42:23,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2022-10-16 17:42:23,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2022-10-16 17:42:23,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2022-10-16 17:42:23,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2022-10-16 17:42:23,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2022-10-16 17:42:23,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2022-10-16 17:42:23,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2022-10-16 17:42:23,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2022-10-16 17:42:23,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2022-10-16 17:42:23,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2022-10-16 17:42:23,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2022-10-16 17:42:23,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2022-10-16 17:42:23,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2022-10-16 17:42:23,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2022-10-16 17:42:23,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:42:23,055 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:42:23,061 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:42:23,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:42:23 BoogieIcfgContainer [2022-10-16 17:42:23,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:42:23,108 INFO L158 Benchmark]: Toolchain (without parser) took 5226.24ms. Allocated memory was 152.0MB in the beginning and 198.2MB in the end (delta: 46.1MB). Free memory was 124.7MB in the beginning and 113.7MB in the end (delta: 11.0MB). Peak memory consumption was 57.9MB. Max. memory is 8.0GB. [2022-10-16 17:42:23,108 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 152.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:42:23,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.00ms. Allocated memory is still 152.0MB. Free memory was 124.5MB in the beginning and 110.4MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 17:42:23,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.44ms. Allocated memory is still 152.0MB. Free memory was 110.3MB in the beginning and 108.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:42:23,112 INFO L158 Benchmark]: Boogie Preprocessor took 41.06ms. Allocated memory is still 152.0MB. Free memory was 108.6MB in the beginning and 106.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:42:23,112 INFO L158 Benchmark]: RCFGBuilder took 986.80ms. Allocated memory is still 152.0MB. Free memory was 106.9MB in the beginning and 120.0MB in the end (delta: -13.1MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2022-10-16 17:42:23,113 INFO L158 Benchmark]: TraceAbstraction took 3654.31ms. Allocated memory was 152.0MB in the beginning and 198.2MB in the end (delta: 46.1MB). Free memory was 119.5MB in the beginning and 113.7MB in the end (delta: 5.8MB). Peak memory consumption was 52.0MB. Max. memory is 8.0GB. [2022-10-16 17:42:23,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 152.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 466.00ms. Allocated memory is still 152.0MB. Free memory was 124.5MB in the beginning and 110.4MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.44ms. Allocated memory is still 152.0MB. Free memory was 110.3MB in the beginning and 108.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.06ms. Allocated memory is still 152.0MB. Free memory was 108.6MB in the beginning and 106.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 986.80ms. Allocated memory is still 152.0MB. Free memory was 106.9MB in the beginning and 120.0MB in the end (delta: -13.1MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * TraceAbstraction took 3654.31ms. Allocated memory was 152.0MB in the beginning and 198.2MB in the end (delta: 46.1MB). Free memory was 119.5MB in the beginning and 113.7MB in the end (delta: 5.8MB). Peak memory consumption was 52.0MB. 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 - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76. Possible FailurePath: [L225] unsigned int a ; [L226] unsigned int ma = __VERIFIER_nondet_uint(); [L227] signed char ea = __VERIFIER_nondet_char(); [L228] unsigned int b ; [L229] unsigned int mb = __VERIFIER_nondet_uint(); [L230] signed char eb = __VERIFIER_nondet_char(); [L231] unsigned int r_add1 ; [L232] unsigned int r_add2 ; [L233] unsigned int zero ; [L234] int tmp ; [L235] int tmp___0 ; [L236] int __retres14 ; VAL [ea=0, eb=0] [L240] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=0, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=0, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=0, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=0, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L80] return (__retres4); VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=0, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, \result=0, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L240] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L240] zero = base2flt(0, 0) [L241] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=16777216, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=16777216, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=16777216, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=16777216, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=16777216, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=0, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=0, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=16777217, \old(m)=16777216, \old(res = m | (unsigned int )((e + 128) << 24U))=16777218, e=0, m=0, m = m & ~ (1U << 24U)=16777217, res = m | (unsigned int )((e + 128) << 24U)=16777218] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 132]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 132]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 138 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 418 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 410 mSDsluCounter, 2320 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1443 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 877 mSDtfsCounter, 331 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207occurred in iteration=6, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 80 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 2 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 9/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-16 17:42:23,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...