/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/ldv-regression/test23-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:04:16,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:04:16,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:04:16,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:04:16,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:04:16,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:04:16,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:04:16,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:04:16,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:04:16,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:04:16,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:04:16,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:04:16,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:04:16,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:04:16,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:04:16,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:04:16,412 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:04:16,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:04:16,413 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:04:16,413 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:04:16,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:04:16,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:04:16,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:04:16,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:04:16,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:04:16,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:04:16,415 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:04:16,415 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:04:16,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:04:16,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:04:16,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:04:16,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:04:16,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:04:16,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:04:16,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:04:16,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:04:16,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:04:16,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:04:16,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:04:16,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:04:16,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:04:16,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:04:16,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:04:16,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:04:16,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:04:16,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:04:16,857 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:04:16,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test23-2.c [2022-10-16 14:04:16,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd044c1c0/72338da6652e45de86db29989f0284ee/FLAG61954ab79 [2022-10-16 14:04:17,516 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:04:17,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test23-2.c [2022-10-16 14:04:17,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd044c1c0/72338da6652e45de86db29989f0284ee/FLAG61954ab79 [2022-10-16 14:04:17,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd044c1c0/72338da6652e45de86db29989f0284ee [2022-10-16 14:04:17,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:04:17,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:04:17,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:04:17,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:04:17,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:04:17,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c4f162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17, skipping insertion in model container [2022-10-16 14:04:17,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:04:17,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:04:18,132 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/ldv-regression/test23-2.c[1070,1083] [2022-10-16 14:04:18,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:04:18,146 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:04:18,170 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/ldv-regression/test23-2.c[1070,1083] [2022-10-16 14:04:18,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:04:18,189 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:04:18,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18 WrapperNode [2022-10-16 14:04:18,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:04:18,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:04:18,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:04:18,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:04:18,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,244 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2022-10-16 14:04:18,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:04:18,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:04:18,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:04:18,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:04:18,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,278 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:04:18,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:04:18,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:04:18,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:04:18,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (1/1) ... [2022-10-16 14:04:18,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:04:18,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:04:18,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:04:18,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:04:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:04:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:04:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:04:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-10-16 14:04:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-10-16 14:04:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:04:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:04:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:04:18,491 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:04:18,494 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:04:18,783 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:04:18,791 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:04:18,791 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:04:18,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:18 BoogieIcfgContainer [2022-10-16 14:04:18,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:04:18,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:04:18,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:04:18,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:04:18,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:04:17" (1/3) ... [2022-10-16 14:04:18,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8e36f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:18, skipping insertion in model container [2022-10-16 14:04:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:18" (2/3) ... [2022-10-16 14:04:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8e36f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:18, skipping insertion in model container [2022-10-16 14:04:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:18" (3/3) ... [2022-10-16 14:04:18,805 INFO L112 eAbstractionObserver]: Analyzing ICFG test23-2.c [2022-10-16 14:04:18,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:04:18,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:04:18,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:04:18,900 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;@32c7bd88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:04:18,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:04:18,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:04:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:04:18,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:18,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:18,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:18,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:18,926 INFO L85 PathProgramCache]: Analyzing trace with hash -813250880, now seen corresponding path program 1 times [2022-10-16 14:04:18,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:18,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116428815] [2022-10-16 14:04:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:18,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:19,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:19,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116428815] [2022-10-16 14:04:19,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116428815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:19,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:19,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:04:19,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406101348] [2022-10-16 14:04:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:19,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:04:19,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:19,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:04:19,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:19,647 INFO L87 Difference]: Start difference. First operand has 30 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:19,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:19,684 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-10-16 14:04:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:04:19,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-10-16 14:04:19,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:19,697 INFO L225 Difference]: With dead ends: 38 [2022-10-16 14:04:19,697 INFO L226 Difference]: Without dead ends: 21 [2022-10-16 14:04:19,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:19,706 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:19,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-16 14:04:19,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-16 14:04:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:04:19,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-10-16 14:04:19,756 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 17 [2022-10-16 14:04:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:19,758 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-10-16 14:04:19,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:19,759 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-10-16 14:04:19,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:04:19,760 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:19,761 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:19,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:04:19,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:19,763 INFO L85 PathProgramCache]: Analyzing trace with hash 559026549, now seen corresponding path program 1 times [2022-10-16 14:04:19,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:19,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827652198] [2022-10-16 14:04:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:19,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:20,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:20,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827652198] [2022-10-16 14:04:20,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827652198] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:20,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:20,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:04:20,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073988260] [2022-10-16 14:04:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:20,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:04:20,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:20,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:04:20,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:20,050 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:20,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:20,072 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-10-16 14:04:20,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:04:20,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-10-16 14:04:20,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:20,075 INFO L225 Difference]: With dead ends: 21 [2022-10-16 14:04:20,075 INFO L226 Difference]: Without dead ends: 20 [2022-10-16 14:04:20,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:20,080 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:20,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:20,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-16 14:04:20,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-10-16 14:04:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:04:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-10-16 14:04:20,098 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 18 [2022-10-16 14:04:20,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:20,101 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-10-16 14:04:20,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-10-16 14:04:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:04:20,109 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:20,110 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:20,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:04:20,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:20,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1923194873, now seen corresponding path program 1 times [2022-10-16 14:04:20,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:20,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922825785] [2022-10-16 14:04:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:20,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:20,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922825785] [2022-10-16 14:04:20,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922825785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:20,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:20,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:04:20,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295138314] [2022-10-16 14:04:20,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:20,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:04:20,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:04:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:04:20,448 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:20,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:20,481 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-10-16 14:04:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:04:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-10-16 14:04:20,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:20,483 INFO L225 Difference]: With dead ends: 25 [2022-10-16 14:04:20,483 INFO L226 Difference]: Without dead ends: 24 [2022-10-16 14:04:20,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:04:20,485 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:20,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 42 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-16 14:04:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-10-16 14:04:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:04:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-10-16 14:04:20,492 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 21 [2022-10-16 14:04:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:20,493 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-10-16 14:04:20,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-10-16 14:04:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:04:20,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:20,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:20,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:04:20,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 510501148, now seen corresponding path program 1 times [2022-10-16 14:04:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:20,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160178072] [2022-10-16 14:04:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:20,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:20,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:20,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160178072] [2022-10-16 14:04:20,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160178072] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:20,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:20,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:04:20,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254498532] [2022-10-16 14:04:20,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:20,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:04:20,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:04:20,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:20,582 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:20,603 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-10-16 14:04:20,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:04:20,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-10-16 14:04:20,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:20,605 INFO L225 Difference]: With dead ends: 23 [2022-10-16 14:04:20,605 INFO L226 Difference]: Without dead ends: 22 [2022-10-16 14:04:20,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:20,607 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:20,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:20,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-10-16 14:04:20,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-10-16 14:04:20,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:04:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-10-16 14:04:20,614 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 22 [2022-10-16 14:04:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:20,615 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-10-16 14:04:20,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-10-16 14:04:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 14:04:20,616 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:20,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:20,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:04:20,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:20,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:20,618 INFO L85 PathProgramCache]: Analyzing trace with hash -139437312, now seen corresponding path program 1 times [2022-10-16 14:04:20,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:20,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363871706] [2022-10-16 14:04:20,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:20,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:20,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:20,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363871706] [2022-10-16 14:04:20,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363871706] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:04:20,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274676379] [2022-10-16 14:04:20,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:20,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:04:20,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:04:20,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:04:20,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:04:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:04:20,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:04:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:21,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:04:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:21,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274676379] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:04:21,111 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:04:21,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 14:04:21,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424215056] [2022-10-16 14:04:21,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:04:21,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:04:21,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:21,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:04:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:04:21,114 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:21,196 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-10-16 14:04:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:04:21,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-10-16 14:04:21,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:21,200 INFO L225 Difference]: With dead ends: 35 [2022-10-16 14:04:21,200 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 14:04:21,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:04:21,206 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:21,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 67 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 14:04:21,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-10-16 14:04:21,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:04:21,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-10-16 14:04:21,233 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 25 [2022-10-16 14:04:21,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:21,233 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-10-16 14:04:21,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:04:21,235 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-10-16 14:04:21,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 14:04:21,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:21,236 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:21,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:04:21,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:04:21,453 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:21,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1592889109, now seen corresponding path program 2 times [2022-10-16 14:04:21,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:21,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839856751] [2022-10-16 14:04:21,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:21,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:04:21,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:21,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839856751] [2022-10-16 14:04:21,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839856751] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:04:21,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797133134] [2022-10-16 14:04:21,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:04:21,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:04:21,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:04:21,709 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:04:21,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:04:21,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:04:21,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:04:21,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:04:21,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:04:21,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 14:04:22,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:04:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-16 14:04:22,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:04:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 14:04:22,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797133134] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:04:22,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:04:22,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 4] total 18 [2022-10-16 14:04:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696246978] [2022-10-16 14:04:22,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:04:22,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 14:04:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 14:04:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:04:22,165 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:04:23,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:23,061 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2022-10-16 14:04:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-16 14:04:23,062 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-10-16 14:04:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:23,063 INFO L225 Difference]: With dead ends: 78 [2022-10-16 14:04:23,063 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:04:23,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=652, Invalid=2104, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:04:23,066 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 89 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:23,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 104 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:04:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:04:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:04:23,068 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) [2022-10-16 14:04:23,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:04:23,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-10-16 14:04:23,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:23,068 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:04:23,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:04:23,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:04:23,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:04:23,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 14:04:23,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 14:04:23,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 14:04:23,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 14:04:23,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:04:23,287 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,SelfDestructingSolverStorable5 [2022-10-16 14:04:23,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 14:04:23,391 INFO L899 garLoopResultBuilder]: For program point get_dummyFINAL(lines 23 26) no Hoare annotation was computed. [2022-10-16 14:04:23,392 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-10-16 14:04:23,392 INFO L902 garLoopResultBuilder]: At program point get_dummyENTRY(lines 23 26) the Hoare annotation is: true [2022-10-16 14:04:23,392 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 23 26) no Hoare annotation was computed. [2022-10-16 14:04:23,392 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-10-16 14:04:23,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 14:04:23,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:04:23,393 INFO L902 garLoopResultBuilder]: At program point L46(lines 34 54) the Hoare annotation is: true [2022-10-16 14:04:23,393 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 42 44) no Hoare annotation was computed. [2022-10-16 14:04:23,394 INFO L895 garLoopResultBuilder]: At program point L42-3(lines 42 44) the Hoare annotation is: (and (= |~#d1~0.base| 4) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (< (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 2147483648)) [2022-10-16 14:04:23,394 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 48) no Hoare annotation was computed. [2022-10-16 14:04:23,394 INFO L899 garLoopResultBuilder]: For program point L42-4(lines 42 44) no Hoare annotation was computed. [2022-10-16 14:04:23,394 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (= |~#d1~0.base| 4) [2022-10-16 14:04:23,394 INFO L899 garLoopResultBuilder]: For program point L38-2(lines 38 48) no Hoare annotation was computed. [2022-10-16 14:04:23,394 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2022-10-16 14:04:23,394 INFO L895 garLoopResultBuilder]: At program point L36-2(line 36) the Hoare annotation is: (= |~#d1~0.base| 4) [2022-10-16 14:04:23,395 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2022-10-16 14:04:23,395 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 14:04:23,395 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-10-16 14:04:23,395 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:04:23,395 INFO L902 garLoopResultBuilder]: At program point L30(lines 28 31) the Hoare annotation is: true [2022-10-16 14:04:23,395 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 14:04:23,396 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 14:04:23,396 INFO L902 garLoopResultBuilder]: At program point L53(lines 33 54) the Hoare annotation is: true [2022-10-16 14:04:23,396 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 21) no Hoare annotation was computed. [2022-10-16 14:04:23,396 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2022-10-16 14:04:23,396 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-10-16 14:04:23,396 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-10-16 14:04:23,396 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-10-16 14:04:23,397 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-10-16 14:04:23,400 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-10-16 14:04:23,403 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:04:23,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:04:23 BoogieIcfgContainer [2022-10-16 14:04:23,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:04:23,420 INFO L158 Benchmark]: Toolchain (without parser) took 5521.88ms. Allocated memory was 154.1MB in the beginning and 187.7MB in the end (delta: 33.6MB). Free memory was 127.8MB in the beginning and 98.7MB in the end (delta: 29.1MB). Peak memory consumption was 63.5MB. Max. memory is 8.0GB. [2022-10-16 14:04:23,421 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:04:23,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.86ms. Allocated memory is still 154.1MB. Free memory was 127.5MB in the beginning and 117.3MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 14:04:23,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.10ms. Allocated memory is still 154.1MB. Free memory was 117.3MB in the beginning and 115.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:04:23,422 INFO L158 Benchmark]: Boogie Preprocessor took 36.53ms. Allocated memory is still 154.1MB. Free memory was 115.6MB in the beginning and 114.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:04:23,422 INFO L158 Benchmark]: RCFGBuilder took 511.19ms. Allocated memory is still 154.1MB. Free memory was 114.2MB in the beginning and 101.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 14:04:23,423 INFO L158 Benchmark]: TraceAbstraction took 4623.04ms. Allocated memory was 154.1MB in the beginning and 187.7MB in the end (delta: 33.6MB). Free memory was 101.2MB in the beginning and 98.7MB in the end (delta: 2.5MB). Peak memory consumption was 36.3MB. Max. memory is 8.0GB. [2022-10-16 14:04:23,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 282.86ms. Allocated memory is still 154.1MB. Free memory was 127.5MB in the beginning and 117.3MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.10ms. Allocated memory is still 154.1MB. Free memory was 117.3MB in the beginning and 115.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.53ms. Allocated memory is still 154.1MB. Free memory was 115.6MB in the beginning and 114.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 511.19ms. Allocated memory is still 154.1MB. Free memory was 114.2MB in the beginning and 101.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4623.04ms. Allocated memory was 154.1MB in the beginning and 187.7MB in the end (delta: 33.6MB). Free memory was 101.2MB in the beginning and 98.7MB in the end (delta: 2.5MB). Peak memory consumption was 36.3MB. 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: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: 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 2 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 334 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 228 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 106 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=5, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 25 NumberOfFragments, 26 HoareAnnotationTreeSize, 8 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 313 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 202 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 766 SizeOfPredicates, 19 NumberOfNonLiveVariables, 266 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 96/157 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 4 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (d1 == 4 && 0 <= i + 2147483648) && unknown-#memory_int-unknown[pa][pa] < 2147483648 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 14:04:23,471 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...