/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/array-examples/standard_palindrome_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:13:06,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:13:06,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:13:06,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 20:13:06,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:13:06,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:13:06,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:13:06,390 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 [2022-10-15 20:13:06,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:13:06,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:13:06,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:13:06,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:13:06,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:13:06,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:13:06,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:13:06,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:13:06,421 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:13:06,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:13:06,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:13:06,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:13:06,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:13:06,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:13:06,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:13:06,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:13:06,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:13:06,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:13:06,424 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:13:06,424 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:13:06,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:13:06,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:13:06,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:13:06,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:13:06,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:13:06,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:13:06,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:06,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:13:06,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:13:06,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:13:06,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:13:06,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:13:06,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:13:06,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:13:06,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:13:06,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:13:06,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:13:06,864 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:13:06,866 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:13:06,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_palindrome_ground.i [2022-10-15 20:13:06,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa948f2a/f5bf410b3a094eca93adebccd18e6ab3/FLAG9c5094de8 [2022-10-15 20:13:07,625 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:13:07,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_palindrome_ground.i [2022-10-15 20:13:07,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa948f2a/f5bf410b3a094eca93adebccd18e6ab3/FLAG9c5094de8 [2022-10-15 20:13:07,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa948f2a/f5bf410b3a094eca93adebccd18e6ab3 [2022-10-15 20:13:07,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:13:07,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:13:07,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:07,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:13:07,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:13:07,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:07" (1/1) ... [2022-10-15 20:13:07,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8695a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:07, skipping insertion in model container [2022-10-15 20:13:07,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:07" (1/1) ... [2022-10-15 20:13:07,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:13:08,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:13:08,166 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/array-examples/standard_palindrome_ground.i[819,832] [2022-10-15 20:13:08,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:08,192 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:13:08,207 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/array-examples/standard_palindrome_ground.i[819,832] [2022-10-15 20:13:08,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:08,231 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:13:08,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08 WrapperNode [2022-10-15 20:13:08,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:08,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:08,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:13:08,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:13:08,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,276 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-10-15 20:13:08,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:08,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:13:08,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:13:08,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:13:08,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:13:08,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:13:08,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:13:08,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:13:08,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (1/1) ... [2022-10-15 20:13:08,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:08,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:08,353 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) [2022-10-15 20:13:08,369 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 [2022-10-15 20:13:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:13:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:13:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:13:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:13:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:13:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:13:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:13:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:13:08,530 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:13:08,533 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:13:08,741 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:13:08,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:13:08,759 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 20:13:08,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:08 BoogieIcfgContainer [2022-10-15 20:13:08,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:13:08,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:13:08,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:13:08,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:13:08,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:13:07" (1/3) ... [2022-10-15 20:13:08,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be3f826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:08, skipping insertion in model container [2022-10-15 20:13:08,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:08" (2/3) ... [2022-10-15 20:13:08,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be3f826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:08, skipping insertion in model container [2022-10-15 20:13:08,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:08" (3/3) ... [2022-10-15 20:13:08,798 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_palindrome_ground.i [2022-10-15 20:13:08,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:13:08,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-15 20:13:08,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:13:08,942 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;@71096980, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:13:08,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-15 20:13:08,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.7) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:08,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:13:08,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:08,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:13:08,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:08,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:08,978 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:13:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:08,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515516262] [2022-10-15 20:13:08,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:08,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:09,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:09,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:09,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515516262] [2022-10-15 20:13:09,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515516262] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:09,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:09,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:09,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564913208] [2022-10-15 20:13:09,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:09,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:09,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:09,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:09,521 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.7) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:09,642 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2022-10-15 20:13:09,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:09,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 20:13:09,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:09,658 INFO L225 Difference]: With dead ends: 98 [2022-10-15 20:13:09,659 INFO L226 Difference]: Without dead ends: 54 [2022-10-15 20:13:09,663 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 [2022-10-15 20:13:09,668 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 12 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:09,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 100 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-15 20:13:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2022-10-15 20:13:09,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.457142857142857) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2022-10-15 20:13:09,720 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 5 [2022-10-15 20:13:09,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:09,720 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2022-10-15 20:13:09,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:09,721 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2022-10-15 20:13:09,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:13:09,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:09,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:13:09,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:13:09,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:09,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:13:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:09,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261744057] [2022-10-15 20:13:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:09,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:09,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261744057] [2022-10-15 20:13:09,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261744057] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:09,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:09,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:09,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120377353] [2022-10-15 20:13:09,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:09,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:09,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:09,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:09,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:09,887 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:09,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:09,938 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2022-10-15 20:13:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:09,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 20:13:09,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:09,941 INFO L225 Difference]: With dead ends: 49 [2022-10-15 20:13:09,941 INFO L226 Difference]: Without dead ends: 46 [2022-10-15 20:13:09,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:09,944 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:09,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 69 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:09,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-15 20:13:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2022-10-15 20:13:09,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 44 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-10-15 20:13:09,954 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 9 [2022-10-15 20:13:09,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:09,955 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-10-15 20:13:09,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-10-15 20:13:09,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:09,956 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:09,956 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:13:09,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:13:09,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:09,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:09,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:13:09,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:09,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241545050] [2022-10-15 20:13:09,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:10,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:10,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241545050] [2022-10-15 20:13:10,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241545050] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:10,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528604485] [2022-10-15 20:13:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:10,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:10,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:10,089 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) [2022-10-15 20:13:10,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:13:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:10,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:13:10,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:10,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:10,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528604485] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:10,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:10,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:13:10,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816728652] [2022-10-15 20:13:10,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:10,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:13:10,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:10,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:13:10,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:13:10,241 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:10,320 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2022-10-15 20:13:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:13:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:13:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:10,322 INFO L225 Difference]: With dead ends: 51 [2022-10-15 20:13:10,322 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 20:13:10,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:13:10,324 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 49 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:10,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 60 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 20:13:10,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2022-10-15 20:13:10,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:10,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-10-15 20:13:10,334 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 10 [2022-10-15 20:13:10,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:10,335 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-10-15 20:13:10,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:10,335 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-10-15 20:13:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:13:10,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:10,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:10,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:10,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:10,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:10,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:10,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2043024110, now seen corresponding path program 1 times [2022-10-15 20:13:10,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:10,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551978591] [2022-10-15 20:13:10,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:10,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:10,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:10,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:10,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551978591] [2022-10-15 20:13:10,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551978591] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:10,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668969034] [2022-10-15 20:13:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:10,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:10,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:10,663 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) [2022-10-15 20:13:10,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:13:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:10,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:10,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:10,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:10,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668969034] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:10,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:10,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:13:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785547318] [2022-10-15 20:13:10,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:10,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:13:10,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:10,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:13:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:13:10,842 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:10,985 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2022-10-15 20:13:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 20:13:10,986 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 20:13:10,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:10,988 INFO L225 Difference]: With dead ends: 89 [2022-10-15 20:13:10,988 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 20:13:10,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:13:10,991 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 62 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:10,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 102 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:10,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 20:13:11,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-10-15 20:13:11,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:11,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2022-10-15 20:13:11,004 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 15 [2022-10-15 20:13:11,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:11,004 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2022-10-15 20:13:11,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:11,005 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2022-10-15 20:13:11,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 20:13:11,007 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:11,007 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:11,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:11,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 20:13:11,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:11,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:11,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2133180442, now seen corresponding path program 2 times [2022-10-15 20:13:11,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:11,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330662086] [2022-10-15 20:13:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:11,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:13:11,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:11,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330662086] [2022-10-15 20:13:11,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330662086] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:11,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:11,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060356443] [2022-10-15 20:13:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:11,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:11,366 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:11,436 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-10-15 20:13:11,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:11,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-15 20:13:11,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:11,440 INFO L225 Difference]: With dead ends: 55 [2022-10-15 20:13:11,440 INFO L226 Difference]: Without dead ends: 53 [2022-10-15 20:13:11,444 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 [2022-10-15 20:13:11,446 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:11,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 75 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-15 20:13:11,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-15 20:13:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2022-10-15 20:13:11,472 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 23 [2022-10-15 20:13:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:11,472 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-10-15 20:13:11,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:11,473 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2022-10-15 20:13:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 20:13:11,476 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:11,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:11,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:13:11,477 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:11,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:11,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1242364956, now seen corresponding path program 1 times [2022-10-15 20:13:11,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:11,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584566746] [2022-10-15 20:13:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:11,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:13:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:11,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584566746] [2022-10-15 20:13:11,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584566746] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:11,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886809728] [2022-10-15 20:13:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:11,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:11,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:11,715 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) [2022-10-15 20:13:11,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:13:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:11,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:13:11,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:11,886 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:13:11,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:13:12,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886809728] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:12,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:12,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2022-10-15 20:13:12,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987975162] [2022-10-15 20:13:12,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:12,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-15 20:13:12,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:12,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-15 20:13:12,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-10-15 20:13:12,014 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:12,240 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2022-10-15 20:13:12,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-15 20:13:12,240 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-15 20:13:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:12,242 INFO L225 Difference]: With dead ends: 117 [2022-10-15 20:13:12,242 INFO L226 Difference]: Without dead ends: 79 [2022-10-15 20:13:12,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2022-10-15 20:13:12,245 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 144 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:12,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 146 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:12,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-15 20:13:12,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2022-10-15 20:13:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 72 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2022-10-15 20:13:12,257 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 26 [2022-10-15 20:13:12,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:12,257 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2022-10-15 20:13:12,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,258 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2022-10-15 20:13:12,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 20:13:12,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:12,260 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:12,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:12,473 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 [2022-10-15 20:13:12,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:12,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:12,475 INFO L85 PathProgramCache]: Analyzing trace with hash -839543346, now seen corresponding path program 1 times [2022-10-15 20:13:12,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:12,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375345241] [2022-10-15 20:13:12,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:12,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-15 20:13:12,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:12,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375345241] [2022-10-15 20:13:12,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375345241] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:12,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:12,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:12,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556041717] [2022-10-15 20:13:12,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:12,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:12,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:12,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:12,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:12,652 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:12,690 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2022-10-15 20:13:12,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-15 20:13:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:12,692 INFO L225 Difference]: With dead ends: 73 [2022-10-15 20:13:12,692 INFO L226 Difference]: Without dead ends: 72 [2022-10-15 20:13:12,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:12,694 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:12,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 66 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-15 20:13:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-10-15 20:13:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 71 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2022-10-15 20:13:12,703 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 47 [2022-10-15 20:13:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:12,703 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2022-10-15 20:13:12,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2022-10-15 20:13:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-15 20:13:12,705 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:12,705 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:12,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 20:13:12,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:12,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:12,707 INFO L85 PathProgramCache]: Analyzing trace with hash -256039878, now seen corresponding path program 1 times [2022-10-15 20:13:12,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:12,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565523190] [2022-10-15 20:13:12,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:12,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-15 20:13:12,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:12,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565523190] [2022-10-15 20:13:12,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565523190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:12,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:12,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:12,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029260660] [2022-10-15 20:13:12,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:12,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:12,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:12,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:12,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:12,837 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:12,876 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2022-10-15 20:13:12,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:12,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-15 20:13:12,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:12,877 INFO L225 Difference]: With dead ends: 72 [2022-10-15 20:13:12,878 INFO L226 Difference]: Without dead ends: 69 [2022-10-15 20:13:12,878 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 [2022-10-15 20:13:12,879 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 24 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:12,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 47 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:12,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-15 20:13:12,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2022-10-15 20:13:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 60 states have (on average 1.1333333333333333) internal successors, (68), 65 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2022-10-15 20:13:12,888 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 48 [2022-10-15 20:13:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:12,889 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2022-10-15 20:13:12,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2022-10-15 20:13:12,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 20:13:12,891 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:12,891 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:12,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 20:13:12,892 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:12,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:12,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1222054864, now seen corresponding path program 1 times [2022-10-15 20:13:12,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:12,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692039135] [2022-10-15 20:13:12,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:12,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-15 20:13:12,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:12,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692039135] [2022-10-15 20:13:12,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692039135] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:12,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:12,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:13:12,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526403814] [2022-10-15 20:13:12,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:12,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:12,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:12,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:12,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:13:12,974 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:13,004 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2022-10-15 20:13:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:13,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-15 20:13:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:13,006 INFO L225 Difference]: With dead ends: 82 [2022-10-15 20:13:13,006 INFO L226 Difference]: Without dead ends: 78 [2022-10-15 20:13:13,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:13:13,008 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:13,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 49 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:13,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-15 20:13:13,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2022-10-15 20:13:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 65 states have (on average 1.123076923076923) internal successors, (73), 70 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2022-10-15 20:13:13,017 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 52 [2022-10-15 20:13:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:13,017 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2022-10-15 20:13:13,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2022-10-15 20:13:13,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 20:13:13,019 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:13,019 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:13,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 20:13:13,019 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:13,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:13,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1384743822, now seen corresponding path program 1 times [2022-10-15 20:13:13,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:13,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318949688] [2022-10-15 20:13:13,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:13,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-15 20:13:13,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:13,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318949688] [2022-10-15 20:13:13,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318949688] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:13,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:13,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:13,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964261208] [2022-10-15 20:13:13,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:13,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:13,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:13,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:13,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:13,158 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:13,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:13,191 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2022-10-15 20:13:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:13,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-15 20:13:13,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:13,192 INFO L225 Difference]: With dead ends: 78 [2022-10-15 20:13:13,193 INFO L226 Difference]: Without dead ends: 76 [2022-10-15 20:13:13,193 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 [2022-10-15 20:13:13,194 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:13,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 70 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-15 20:13:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-10-15 20:13:13,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 70 states have (on average 1.1142857142857143) internal successors, (78), 75 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:13,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2022-10-15 20:13:13,202 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 59 [2022-10-15 20:13:13,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:13,203 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2022-10-15 20:13:13,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:13,203 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2022-10-15 20:13:13,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-15 20:13:13,204 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:13,205 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:13,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 20:13:13,205 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:13,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:13,206 INFO L85 PathProgramCache]: Analyzing trace with hash -257571361, now seen corresponding path program 1 times [2022-10-15 20:13:13,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:13,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9462386] [2022-10-15 20:13:13,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:13,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-15 20:13:13,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:13,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9462386] [2022-10-15 20:13:13,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9462386] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:13,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403859375] [2022-10-15 20:13:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:13,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:13,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:13,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:13,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:13:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:13,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:13:13,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 20:13:13,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 20:13:14,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403859375] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:14,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:14,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 17, 17] total 35 [2022-10-15 20:13:14,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586063131] [2022-10-15 20:13:14,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:14,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-15 20:13:14,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:14,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-15 20:13:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 20:13:14,012 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 35 states, 35 states have (on average 3.2) internal successors, (112), 35 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:14,518 INFO L93 Difference]: Finished difference Result 165 states and 180 transitions. [2022-10-15 20:13:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-15 20:13:14,519 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.2) internal successors, (112), 35 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-15 20:13:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:14,520 INFO L225 Difference]: With dead ends: 165 [2022-10-15 20:13:14,520 INFO L226 Difference]: Without dead ends: 120 [2022-10-15 20:13:14,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=633, Invalid=1817, Unknown=0, NotChecked=0, Total=2450 [2022-10-15 20:13:14,523 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 156 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:14,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 182 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:13:14,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-15 20:13:14,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 112. [2022-10-15 20:13:14,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 106 states have (on average 1.0849056603773586) internal successors, (115), 111 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:14,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 115 transitions. [2022-10-15 20:13:14,534 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 115 transitions. Word has length 62 [2022-10-15 20:13:14,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:14,534 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 115 transitions. [2022-10-15 20:13:14,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.2) internal successors, (112), 35 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 115 transitions. [2022-10-15 20:13:14,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-15 20:13:14,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:14,536 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:14,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-15 20:13:14,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:14,752 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:14,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1904895431, now seen corresponding path program 1 times [2022-10-15 20:13:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:14,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350599995] [2022-10-15 20:13:14,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:14,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-10-15 20:13:14,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:14,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350599995] [2022-10-15 20:13:14,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350599995] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:14,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:14,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:13:14,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298084693] [2022-10-15 20:13:14,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:14,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:14,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:14,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:13:14,871 INFO L87 Difference]: Start difference. First operand 112 states and 115 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:14,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:14,893 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2022-10-15 20:13:14,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:14,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-15 20:13:14,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:14,896 INFO L225 Difference]: With dead ends: 112 [2022-10-15 20:13:14,896 INFO L226 Difference]: Without dead ends: 110 [2022-10-15 20:13:14,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:13:14,898 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 11 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:14,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 40 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:14,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-15 20:13:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-10-15 20:13:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.0566037735849056) internal successors, (112), 109 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:14,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 112 transitions. [2022-10-15 20:13:14,924 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 112 transitions. Word has length 95 [2022-10-15 20:13:14,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:14,925 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 112 transitions. [2022-10-15 20:13:14,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:14,925 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 112 transitions. [2022-10-15 20:13:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 20:13:14,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:14,929 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:14,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 20:13:14,930 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:14,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash 141586047, now seen corresponding path program 1 times [2022-10-15 20:13:14,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:14,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625430972] [2022-10-15 20:13:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:14,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-10-15 20:13:15,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:15,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625430972] [2022-10-15 20:13:15,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625430972] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:15,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:15,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:15,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955856137] [2022-10-15 20:13:15,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:15,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:15,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:15,104 INFO L87 Difference]: Start difference. First operand 110 states and 112 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:15,134 INFO L93 Difference]: Finished difference Result 110 states and 112 transitions. [2022-10-15 20:13:15,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:15,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-10-15 20:13:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:15,136 INFO L225 Difference]: With dead ends: 110 [2022-10-15 20:13:15,136 INFO L226 Difference]: Without dead ends: 109 [2022-10-15 20:13:15,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:15,139 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:15,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 55 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:15,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-15 20:13:15,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-10-15 20:13:15,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.0471698113207548) internal successors, (111), 108 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 111 transitions. [2022-10-15 20:13:15,151 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 111 transitions. Word has length 101 [2022-10-15 20:13:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:15,151 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 111 transitions. [2022-10-15 20:13:15,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,152 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 111 transitions. [2022-10-15 20:13:15,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-15 20:13:15,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:15,159 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 20:13:15,159 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-15 20:13:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:15,160 INFO L85 PathProgramCache]: Analyzing trace with hash 94200268, now seen corresponding path program 1 times [2022-10-15 20:13:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:15,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620151116] [2022-10-15 20:13:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:15,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2022-10-15 20:13:15,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:15,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620151116] [2022-10-15 20:13:15,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620151116] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:15,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:15,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:15,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627008130] [2022-10-15 20:13:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:15,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:15,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:15,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:15,309 INFO L87 Difference]: Start difference. First operand 109 states and 111 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:15,334 INFO L93 Difference]: Finished difference Result 109 states and 111 transitions. [2022-10-15 20:13:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:15,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-10-15 20:13:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:15,335 INFO L225 Difference]: With dead ends: 109 [2022-10-15 20:13:15,335 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 20:13:15,339 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 [2022-10-15 20:13:15,340 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:15,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 55 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 20:13:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 20:13:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 20:13:15,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2022-10-15 20:13:15,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:15,342 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 20:13:15,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 20:13:15,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 20:13:15,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-10-15 20:13:15,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-10-15 20:13:15,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-10-15 20:13:15,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-10-15 20:13:15,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-10-15 20:13:15,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-10-15 20:13:15,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-10-15 20:13:15,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-10-15 20:13:15,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-10-15 20:13:15,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-10-15 20:13:15,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-10-15 20:13:15,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-10-15 20:13:15,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-10-15 20:13:15,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-10-15 20:13:15,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 20:13:15,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 20:13:15,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2022-10-15 20:13:15,408 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 20:13:15,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-10-15 20:13:15,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 20:13:15,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 20:13:15,408 INFO L902 garLoopResultBuilder]: At program point L28(lines 15 29) the Hoare annotation is: true [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-10-15 20:13:15,409 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-10-15 20:13:15,410 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 27) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147383647))) [2022-10-15 20:13:15,410 INFO L899 garLoopResultBuilder]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2022-10-15 20:13:15,410 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 27) no Hoare annotation was computed. [2022-10-15 20:13:15,410 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2022-10-15 20:13:15,410 INFO L899 garLoopResultBuilder]: For program point L21-4(line 21) no Hoare annotation was computed. [2022-10-15 20:13:15,410 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-10-15 20:13:15,411 INFO L895 garLoopResultBuilder]: At program point L21-5(lines 21 23) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147383647)) [2022-10-15 20:13:15,411 INFO L899 garLoopResultBuilder]: For program point L21-6(lines 21 23) no Hoare annotation was computed. [2022-10-15 20:13:15,411 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-10-15 20:13:15,412 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-15 20:13:15,412 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,412 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-10-15 20:13:15,412 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,413 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,413 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,413 INFO L899 garLoopResultBuilder]: For program point L26-2(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,414 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,414 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,414 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,414 INFO L899 garLoopResultBuilder]: For program point L22-2(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,414 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-10-15 20:13:15,414 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2022-10-15 20:13:15,414 INFO L899 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2022-10-15 20:13:15,415 INFO L899 garLoopResultBuilder]: For program point L18-4(line 18) no Hoare annotation was computed. [2022-10-15 20:13:15,415 INFO L895 garLoopResultBuilder]: At program point L18-5(lines 18 20) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-15 20:13:15,415 INFO L899 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2022-10-15 20:13:15,415 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-15 20:13:15,416 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2022-10-15 20:13:15,425 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:15,430 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 20:13:15,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:13:15 BoogieIcfgContainer [2022-10-15 20:13:15,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 20:13:15,456 INFO L158 Benchmark]: Toolchain (without parser) took 7494.91ms. Allocated memory was 151.0MB in the beginning and 191.9MB in the end (delta: 40.9MB). Free memory was 125.2MB in the beginning and 80.9MB in the end (delta: 44.3MB). Peak memory consumption was 86.8MB. Max. memory is 8.0GB. [2022-10-15 20:13:15,457 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 20:13:15,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.53ms. Allocated memory is still 151.0MB. Free memory was 125.0MB in the beginning and 115.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 20:13:15,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.31ms. Allocated memory is still 151.0MB. Free memory was 115.2MB in the beginning and 113.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 20:13:15,459 INFO L158 Benchmark]: Boogie Preprocessor took 29.96ms. Allocated memory is still 151.0MB. Free memory was 113.5MB in the beginning and 112.3MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 20:13:15,460 INFO L158 Benchmark]: RCFGBuilder took 463.00ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 100.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-15 20:13:15,460 INFO L158 Benchmark]: TraceAbstraction took 6678.33ms. Allocated memory was 151.0MB in the beginning and 191.9MB in the end (delta: 40.9MB). Free memory was 100.2MB in the beginning and 80.9MB in the end (delta: 19.3MB). Peak memory consumption was 61.6MB. Max. memory is 8.0GB. [2022-10-15 20:13:15,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.53ms. Allocated memory is still 151.0MB. Free memory was 125.0MB in the beginning and 115.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.31ms. Allocated memory is still 151.0MB. Free memory was 115.2MB in the beginning and 113.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.96ms. Allocated memory is still 151.0MB. Free memory was 113.5MB in the beginning and 112.3MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 463.00ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 100.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 6678.33ms. Allocated memory was 151.0MB in the beginning and 191.9MB in the end (delta: 40.9MB). Free memory was 100.2MB in the beginning and 80.9MB in the end (delta: 19.3MB). Peak memory consumption was 61.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 14, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 513 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 513 mSDsluCounter, 1116 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 763 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 924 IncrementalHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 353 mSDtfsCounter, 924 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 293 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=11, InterpolantAutomatonStates: 108, 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, 14 MinimizatonAttempts, 45 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 26 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 190 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 767 NumberOfCodeBlocks, 767 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 849 ConstructedInterpolants, 0 QuantifiedInterpolants, 1257 SizeOfPredicates, 13 NumberOfNonLiveVariables, 403 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 1922/2145 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 <= i && 0 <= x + 2147383647 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 <= i + 2147383647 RESULT: Ultimate proved your program to be correct! [2022-10-15 20:13:15,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...