/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/reducercommutativity/max.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:52:25,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:52:25,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:52:25,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:52:25,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:52:25,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:52:25,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:52:25,909 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 14:52:25,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:52:25,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:52:25,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:52:25,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:52:25,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:52:25,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:52:25,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:52:25,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:52:25,947 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:52:25,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:52:25,947 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:52:25,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:52:25,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:52:25,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:52:25,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:52:25,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:52:25,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:52:25,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:52:25,949 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:52:25,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:52:25,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:52:25,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:52:25,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:52:25,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:52:25,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:52:25,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:52:25,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:52:25,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:52:25,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:52:25,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:52:25,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:52:25,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:52:25,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:52:25,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:52:26,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:52:26,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:52:26,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:52:26,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:52:26,423 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:52:26,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max.i [2022-10-16 14:52:26,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb102357/9ccc1596d7cb462f91a9f4758d8bf9df/FLAGd183ff778 [2022-10-16 14:52:27,206 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:52:27,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max.i [2022-10-16 14:52:27,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb102357/9ccc1596d7cb462f91a9f4758d8bf9df/FLAGd183ff778 [2022-10-16 14:52:27,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb102357/9ccc1596d7cb462f91a9f4758d8bf9df [2022-10-16 14:52:27,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:52:27,574 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:52:27,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:52:27,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:52:27,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:52:27,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477cf5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27, skipping insertion in model container [2022-10-16 14:52:27,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:52:27,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:52:27,830 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/reducercommutativity/max.i[1295,1308] [2022-10-16 14:52:27,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:52:27,842 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:52:27,871 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/reducercommutativity/max.i[1295,1308] [2022-10-16 14:52:27,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:52:27,894 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:52:27,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27 WrapperNode [2022-10-16 14:52:27,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:52:27,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:52:27,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:52:27,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:52:27,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,945 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-10-16 14:52:27,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:52:27,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:52:27,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:52:27,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:52:27,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:52:27,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:52:27,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:52:27,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:52:27,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (1/1) ... [2022-10-16 14:52:27,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:52:28,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:28,026 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 14:52:28,042 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 14:52:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:52:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure max [2022-10-16 14:52:28,095 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2022-10-16 14:52:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:52:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:52:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:52:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:52:28,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:52:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:52:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:52:28,183 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:52:28,186 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:52:28,505 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:52:28,515 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:52:28,515 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:52:28,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:28 BoogieIcfgContainer [2022-10-16 14:52:28,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:52:28,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:52:28,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:52:28,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:52:28,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:52:27" (1/3) ... [2022-10-16 14:52:28,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca779ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:28, skipping insertion in model container [2022-10-16 14:52:28,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:27" (2/3) ... [2022-10-16 14:52:28,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca779ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:28, skipping insertion in model container [2022-10-16 14:52:28,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:28" (3/3) ... [2022-10-16 14:52:28,533 INFO L112 eAbstractionObserver]: Analyzing ICFG max.i [2022-10-16 14:52:28,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:52:28,594 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 14:52:28,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:52:28,709 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;@53e941e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:52:28,709 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 14:52:28,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 40 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:52:28,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:52:28,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:28,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:28,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:28,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash 314491234, now seen corresponding path program 1 times [2022-10-16 14:52:28,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:28,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600177476] [2022-10-16 14:52:28,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:28,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:29,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:29,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600177476] [2022-10-16 14:52:29,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600177476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:29,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:52:29,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:52:29,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745299665] [2022-10-16 14:52:29,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:29,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:52:29,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:29,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:52:29,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:52:29,307 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 40 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:29,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:29,393 INFO L93 Difference]: Finished difference Result 95 states and 119 transitions. [2022-10-16 14:52:29,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:29,397 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:52:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:29,412 INFO L225 Difference]: With dead ends: 95 [2022-10-16 14:52:29,412 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 14:52:29,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:29,424 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 7 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:29,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 130 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:29,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 14:52:29,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2022-10-16 14:52:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.5) internal successors, (45), 40 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-10-16 14:52:29,488 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 10 [2022-10-16 14:52:29,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:29,489 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-10-16 14:52:29,490 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:29,490 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-10-16 14:52:29,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:52:29,492 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:29,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:29,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:52:29,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:29,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1203853637, now seen corresponding path program 1 times [2022-10-16 14:52:29,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:29,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385127901] [2022-10-16 14:52:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:29,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:29,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:29,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385127901] [2022-10-16 14:52:29,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385127901] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:29,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973472644] [2022-10-16 14:52:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:29,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:29,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:29,717 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 14:52:29,742 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 14:52:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:29,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:52:29,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:29,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:29,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973472644] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:29,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:29,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:52:29,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658240335] [2022-10-16 14:52:29,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:29,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:52:29,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:29,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:52:29,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:52:29,982 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:30,145 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2022-10-16 14:52:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:52:30,146 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 14:52:30,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:30,148 INFO L225 Difference]: With dead ends: 78 [2022-10-16 14:52:30,149 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 14:52:30,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:52:30,152 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 44 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:30,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 244 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:52:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 14:52:30,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 61. [2022-10-16 14:52:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 57 states have internal predecessors, (70), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:30,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2022-10-16 14:52:30,168 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 16 [2022-10-16 14:52:30,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:30,169 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2022-10-16 14:52:30,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2022-10-16 14:52:30,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:52:30,171 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:30,171 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:30,203 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 14:52:30,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:30,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:30,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash 602420137, now seen corresponding path program 1 times [2022-10-16 14:52:30,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:30,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703468502] [2022-10-16 14:52:30,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:30,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:52:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:52:30,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:30,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703468502] [2022-10-16 14:52:30,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703468502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:30,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146701503] [2022-10-16 14:52:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:30,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:30,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:30,526 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 14:52:30,545 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 14:52:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:30,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:52:30,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:52:30,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:30,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146701503] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:30,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:30,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:52:30,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457246774] [2022-10-16 14:52:30,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:30,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:52:30,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:52:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:30,673 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. 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 14:52:30,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:30,696 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2022-10-16 14:52:30,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:52:30,697 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 18 [2022-10-16 14:52:30,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:30,700 INFO L225 Difference]: With dead ends: 61 [2022-10-16 14:52:30,700 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:52:30,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:30,703 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:30,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:30,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:52:30,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 14:52:30,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.446808510638298) internal successors, (68), 55 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2022-10-16 14:52:30,717 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 18 [2022-10-16 14:52:30,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:30,720 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2022-10-16 14:52:30,721 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 14:52:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2022-10-16 14:52:30,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:52:30,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:30,723 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:30,762 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 14:52:30,938 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,SelfDestructingSolverStorable2 [2022-10-16 14:52:30,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:30,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:30,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1335242968, now seen corresponding path program 1 times [2022-10-16 14:52:30,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:30,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92257665] [2022-10-16 14:52:30,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:30,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:31,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:31,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92257665] [2022-10-16 14:52:31,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92257665] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:31,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474629525] [2022-10-16 14:52:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:31,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:31,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:31,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:31,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:52:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:31,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:52:31,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:31,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:31,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474629525] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:31,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:31,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:52:31,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841843983] [2022-10-16 14:52:31,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:31,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:52:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:52:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:52:31,174 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:31,223 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2022-10-16 14:52:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:52:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 14:52:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:31,225 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:52:31,225 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:52:31,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:52:31,227 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 14 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:31,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 176 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:52:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2022-10-16 14:52:31,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 54 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2022-10-16 14:52:31,238 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 17 [2022-10-16 14:52:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:31,239 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2022-10-16 14:52:31,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2022-10-16 14:52:31,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:52:31,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:31,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:31,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:31,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:31,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1495155136, now seen corresponding path program 1 times [2022-10-16 14:52:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:31,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655600316] [2022-10-16 14:52:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:31,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:52:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:52:31,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:31,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655600316] [2022-10-16 14:52:31,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655600316] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:31,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018958942] [2022-10-16 14:52:31,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:31,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:31,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:31,547 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) [2022-10-16 14:52:31,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:52:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:31,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:52:31,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:52:31,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:31,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018958942] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:31,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:31,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2022-10-16 14:52:31,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902723577] [2022-10-16 14:52:31,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:31,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:52:31,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:31,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:52:31,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:31,665 INFO L87 Difference]: Start difference. First operand 58 states and 70 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 14:52:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:31,688 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2022-10-16 14:52:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:52:31,689 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 19 [2022-10-16 14:52:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:31,690 INFO L225 Difference]: With dead ends: 58 [2022-10-16 14:52:31,690 INFO L226 Difference]: Without dead ends: 56 [2022-10-16 14:52:31,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:31,692 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:31,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 29 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-16 14:52:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-10-16 14:52:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 52 states have internal predecessors, (63), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 68 transitions. [2022-10-16 14:52:31,701 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 68 transitions. Word has length 19 [2022-10-16 14:52:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:31,702 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 68 transitions. [2022-10-16 14:52:31,702 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 14:52:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 68 transitions. [2022-10-16 14:52:31,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:52:31,703 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:31,703 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:31,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:31,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:31,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:31,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1969955966, now seen corresponding path program 1 times [2022-10-16 14:52:31,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:31,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467840803] [2022-10-16 14:52:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:31,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:52:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:52:32,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:32,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467840803] [2022-10-16 14:52:32,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467840803] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:32,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127083196] [2022-10-16 14:52:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:32,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:32,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:32,096 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:32,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:52:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:52:32,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:52:32,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:32,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127083196] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:32,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:32,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:52:32,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303078883] [2022-10-16 14:52:32,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:32,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:52:32,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:32,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:52:32,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:32,244 INFO L87 Difference]: Start difference. First operand 56 states and 68 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:52:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:32,276 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2022-10-16 14:52:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:52:32,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-10-16 14:52:32,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:32,278 INFO L225 Difference]: With dead ends: 70 [2022-10-16 14:52:32,278 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:52:32,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:32,279 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:32,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:32,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:52:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2022-10-16 14:52:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 56 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:32,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions. [2022-10-16 14:52:32,302 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 73 transitions. Word has length 21 [2022-10-16 14:52:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:32,302 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 73 transitions. [2022-10-16 14:52:32,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:52:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 73 transitions. [2022-10-16 14:52:32,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:52:32,305 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:32,306 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:32,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:32,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:32,521 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:32,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:32,522 INFO L85 PathProgramCache]: Analyzing trace with hash -939092720, now seen corresponding path program 1 times [2022-10-16 14:52:32,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:32,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21194736] [2022-10-16 14:52:32,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:32,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:52:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:52:32,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:32,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21194736] [2022-10-16 14:52:32,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21194736] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:32,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182240109] [2022-10-16 14:52:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:32,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:32,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:32,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:32,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:52:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:32,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:52:32,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:52:32,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:32,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182240109] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:32,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:32,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:52:32,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689269600] [2022-10-16 14:52:32,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:32,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:52:32,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:32,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:52:32,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:32,693 INFO L87 Difference]: Start difference. First operand 60 states and 73 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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 14:52:32,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:32,717 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2022-10-16 14:52:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:52:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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 22 [2022-10-16 14:52:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:32,719 INFO L225 Difference]: With dead ends: 70 [2022-10-16 14:52:32,719 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:52:32,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:32,720 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:32,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 59 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:52:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2022-10-16 14:52:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 57 states have internal predecessors, (69), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 74 transitions. [2022-10-16 14:52:32,729 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 74 transitions. Word has length 22 [2022-10-16 14:52:32,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:32,730 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 74 transitions. [2022-10-16 14:52:32,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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 14:52:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2022-10-16 14:52:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:52:32,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:32,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:32,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:32,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:32,946 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:32,947 INFO L85 PathProgramCache]: Analyzing trace with hash -524969070, now seen corresponding path program 1 times [2022-10-16 14:52:32,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:32,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236057153] [2022-10-16 14:52:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:32,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:52:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:33,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:52:33,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:33,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236057153] [2022-10-16 14:52:33,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236057153] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:33,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549377996] [2022-10-16 14:52:33,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:33,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:33,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:33,040 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:33,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:52:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:33,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:52:33,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:33,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:52:33,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:33,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549377996] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:33,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:33,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2022-10-16 14:52:33,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215984618] [2022-10-16 14:52:33,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:33,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:52:33,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:33,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:52:33,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:33,184 INFO L87 Difference]: Start difference. First operand 61 states and 74 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:33,235 INFO L93 Difference]: Finished difference Result 118 states and 145 transitions. [2022-10-16 14:52:33,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:33,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-10-16 14:52:33,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:33,237 INFO L225 Difference]: With dead ends: 118 [2022-10-16 14:52:33,237 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:52:33,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:33,239 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:33,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 44 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:52:33,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 14:52:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 57 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:33,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2022-10-16 14:52:33,248 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 24 [2022-10-16 14:52:33,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:33,249 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2022-10-16 14:52:33,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:33,249 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2022-10-16 14:52:33,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 14:52:33,250 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:33,251 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:33,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 14:52:33,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:33,465 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:33,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1504465338, now seen corresponding path program 2 times [2022-10-16 14:52:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:33,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51585640] [2022-10-16 14:52:33,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:33,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:33,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51585640] [2022-10-16 14:52:33,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51585640] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:33,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931614997] [2022-10-16 14:52:33,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:52:33,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:33,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:33,678 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:33,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:52:33,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:52:33,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:52:33,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:52:33,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:33,836 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 14:52:33,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 14:52:33,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931614997] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:33,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:33,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 14:52:33,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657697625] [2022-10-16 14:52:33,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:33,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:52:33,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:33,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:52:33,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:52:33,931 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:34,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:34,171 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2022-10-16 14:52:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:52:34,171 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 14:52:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:34,173 INFO L225 Difference]: With dead ends: 84 [2022-10-16 14:52:34,173 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 14:52:34,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:52:34,175 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 89 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:34,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 199 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:52:34,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 14:52:34,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 35. [2022-10-16 14:52:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 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 14:52:34,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-10-16 14:52:34,184 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 34 [2022-10-16 14:52:34,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:34,184 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-10-16 14:52:34,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:34,185 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-10-16 14:52:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 14:52:34,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:34,186 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-10-16 14:52:34,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:34,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-10-16 14:52:34,401 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:34,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1000900082, now seen corresponding path program 1 times [2022-10-16 14:52:34,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:34,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475401854] [2022-10-16 14:52:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:34,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:34,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:52:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:52:34,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:34,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475401854] [2022-10-16 14:52:34,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475401854] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:34,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:52:34,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:52:34,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083785385] [2022-10-16 14:52:34,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:34,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:52:34,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:34,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:52:34,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:52:34,504 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 14:52:34,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:34,532 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-10-16 14:52:34,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:34,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 36 [2022-10-16 14:52:34,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:34,533 INFO L225 Difference]: With dead ends: 40 [2022-10-16 14:52:34,533 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 14:52:34,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:34,535 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:34,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 72 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:34,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 14:52:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-16 14:52:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 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 14:52:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-10-16 14:52:34,558 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 36 [2022-10-16 14:52:34,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:34,558 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-10-16 14:52:34,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 14:52:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-10-16 14:52:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:52:34,562 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:34,562 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-10-16 14:52:34,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:52:34,563 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:34,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:34,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1674631114, now seen corresponding path program 1 times [2022-10-16 14:52:34,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:34,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966010928] [2022-10-16 14:52:34,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:34,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:34,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:52:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:52:34,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:34,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966010928] [2022-10-16 14:52:34,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966010928] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:34,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937085309] [2022-10-16 14:52:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:34,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:34,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:34,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:34,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:52:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:34,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:52:34,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:52:34,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:35,007 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:52:35,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937085309] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:35,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:35,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 13 [2022-10-16 14:52:35,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760737516] [2022-10-16 14:52:35,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:35,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:52:35,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:35,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:52:35,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:52:35,010 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 14:52:35,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:35,198 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2022-10-16 14:52:35,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:52:35,199 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 41 [2022-10-16 14:52:35,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:35,199 INFO L225 Difference]: With dead ends: 93 [2022-10-16 14:52:35,200 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:52:35,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:52:35,201 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 82 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:35,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 99 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:52:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:52:35,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2022-10-16 14:52:35,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 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 14:52:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-10-16 14:52:35,207 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 41 [2022-10-16 14:52:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:35,208 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-10-16 14:52:35,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 14:52:35,208 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-10-16 14:52:35,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 14:52:35,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:35,209 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:35,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:35,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:35,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:35,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash -232251736, now seen corresponding path program 1 times [2022-10-16 14:52:35,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:35,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144362992] [2022-10-16 14:52:35,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:35,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:52:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 14:52:35,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:35,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144362992] [2022-10-16 14:52:35,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144362992] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:35,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508492996] [2022-10-16 14:52:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:35,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:35,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:35,537 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:35,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:52:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:52:35,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 14:52:35,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:35,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508492996] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:35,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:35,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 14:52:35,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461716372] [2022-10-16 14:52:35,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:35,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:52:35,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:35,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:52:35,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:35,657 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 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 14:52:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:35,672 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2022-10-16 14:52:35,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:52:35,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 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 54 [2022-10-16 14:52:35,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:35,673 INFO L225 Difference]: With dead ends: 48 [2022-10-16 14:52:35,673 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 14:52:35,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:35,675 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:35,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 44 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 14:52:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-16 14:52:35,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.146341463414634) internal successors, (47), 43 states have internal predecessors, (47), 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 14:52:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-10-16 14:52:35,680 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 54 [2022-10-16 14:52:35,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:35,681 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-10-16 14:52:35,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 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 14:52:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-10-16 14:52:35,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:52:35,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:35,682 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:35,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-16 14:52:35,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 14:52:35,898 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:35,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:35,898 INFO L85 PathProgramCache]: Analyzing trace with hash 144383786, now seen corresponding path program 1 times [2022-10-16 14:52:35,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:35,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772393084] [2022-10-16 14:52:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:35,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:52:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-10-16 14:52:35,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:35,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772393084] [2022-10-16 14:52:35,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772393084] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:35,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:52:35,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:52:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757446861] [2022-10-16 14:52:35,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:35,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:52:35,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:35,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:52:35,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:52:35,993 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 14:52:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:36,016 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-10-16 14:52:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:36,017 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), 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 56 [2022-10-16 14:52:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:36,018 INFO L225 Difference]: With dead ends: 47 [2022-10-16 14:52:36,018 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 14:52:36,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:36,019 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:36,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 65 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:36,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 14:52:36,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 14:52:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 42 states have internal predecessors, (46), 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 14:52:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-10-16 14:52:36,025 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 56 [2022-10-16 14:52:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:36,025 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-10-16 14:52:36,026 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), 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 14:52:36,026 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-10-16 14:52:36,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:52:36,027 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:36,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:36,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:52:36,027 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:36,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:36,028 INFO L85 PathProgramCache]: Analyzing trace with hash 180930158, now seen corresponding path program 1 times [2022-10-16 14:52:36,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:36,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535358962] [2022-10-16 14:52:36,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:36,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:36,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:52:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-10-16 14:52:36,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:36,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535358962] [2022-10-16 14:52:36,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535358962] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:36,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:52:36,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:52:36,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254279085] [2022-10-16 14:52:36,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:36,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:52:36,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:36,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:52:36,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:52:36,121 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 14:52:36,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:36,141 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-10-16 14:52:36,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:36,142 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), 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 57 [2022-10-16 14:52:36,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:36,143 INFO L225 Difference]: With dead ends: 46 [2022-10-16 14:52:36,143 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:52:36,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:36,144 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:36,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:36,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:52:36,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-16 14:52:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 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 14:52:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-16 14:52:36,149 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 57 [2022-10-16 14:52:36,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:36,150 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-16 14:52:36,150 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), 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 14:52:36,150 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-16 14:52:36,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 14:52:36,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:36,151 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:36,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 14:52:36,152 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:52:36,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:36,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1394950546, now seen corresponding path program 2 times [2022-10-16 14:52:36,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:36,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210707480] [2022-10-16 14:52:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:36,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:52:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:36,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:52:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 14:52:36,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:36,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210707480] [2022-10-16 14:52:36,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210707480] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:36,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802254072] [2022-10-16 14:52:36,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:52:36,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:36,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:36,271 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:36,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:52:36,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:52:36,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:52:36,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:52:36,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 14:52:36,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:36,463 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 14:52:36,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802254072] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:36,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:36,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-16 14:52:36,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023575563] [2022-10-16 14:52:36,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:36,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:52:36,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:36,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:52:36,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:36,466 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 14:52:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:36,504 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-10-16 14:52:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:36,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2022-10-16 14:52:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:36,505 INFO L225 Difference]: With dead ends: 45 [2022-10-16 14:52:36,505 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:52:36,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:52:36,507 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:36,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:36,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:52:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:52:36,508 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 14:52:36,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:52:36,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2022-10-16 14:52:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:36,508 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:52:36,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 14:52:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:52:36,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:52:36,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-16 14:52:36,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-16 14:52:36,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-16 14:52:36,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-16 14:52:36,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-16 14:52:36,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-16 14:52:36,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-16 14:52:36,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-16 14:52:36,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-16 14:52:36,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-16 14:52:36,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:36,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:52:36,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 14:52:36,894 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-10-16 14:52:36,894 INFO L902 garLoopResultBuilder]: At program point maxENTRY(lines 17 26) the Hoare annotation is: true [2022-10-16 14:52:36,894 INFO L899 garLoopResultBuilder]: For program point L23-2(line 23) no Hoare annotation was computed. [2022-10-16 14:52:36,894 INFO L899 garLoopResultBuilder]: For program point maxFINAL(lines 17 26) no Hoare annotation was computed. [2022-10-16 14:52:36,895 INFO L899 garLoopResultBuilder]: For program point maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-16 14:52:36,895 INFO L899 garLoopResultBuilder]: For program point maxEXIT(lines 17 26) no Hoare annotation was computed. [2022-10-16 14:52:36,895 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2022-10-16 14:52:36,895 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-10-16 14:52:36,895 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-10-16 14:52:36,896 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 24) the Hoare annotation is: (or (<= 1 max_~i~0) (not (<= 2 ~N~0)) (= max_~i~0 0) (not (<= ~N~0 2147483647))) [2022-10-16 14:52:36,896 INFO L899 garLoopResultBuilder]: For program point L22-6(lines 22 24) no Hoare annotation was computed. [2022-10-16 14:52:36,896 INFO L899 garLoopResultBuilder]: For program point maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-16 14:52:36,896 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 52) no Hoare annotation was computed. [2022-10-16 14:52:36,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-10-16 14:52:36,896 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 31 52) no Hoare annotation was computed. [2022-10-16 14:52:36,896 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-10-16 14:52:36,897 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-10-16 14:52:36,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-10-16 14:52:36,897 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 14:52:36,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:52:36,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 14:52:36,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:52:36,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 14:52:36,898 INFO L902 garLoopResultBuilder]: At program point L53(lines 28 54) the Hoare annotation is: true [2022-10-16 14:52:36,898 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 51) no Hoare annotation was computed. [2022-10-16 14:52:36,898 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 51) no Hoare annotation was computed. [2022-10-16 14:52:36,898 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 2 ~N~0)) [2022-10-16 14:52:36,898 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-10-16 14:52:36,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:52:36,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 14:52:36,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:52:36,899 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2022-10-16 14:52:36,899 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 2 ~N~0)) [2022-10-16 14:52:36,899 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-10-16 14:52:36,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-10-16 14:52:36,900 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 2 ~N~0)) [2022-10-16 14:52:36,900 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-10-16 14:52:36,900 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-10-16 14:52:36,900 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 45) no Hoare annotation was computed. [2022-10-16 14:52:36,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-10-16 14:52:36,900 INFO L899 garLoopResultBuilder]: For program point L43-4(lines 43 45) no Hoare annotation was computed. [2022-10-16 14:52:36,900 INFO L899 garLoopResultBuilder]: For program point L43-5(line 43) no Hoare annotation was computed. [2022-10-16 14:52:36,900 INFO L899 garLoopResultBuilder]: For program point L43-6(line 43) no Hoare annotation was computed. [2022-10-16 14:52:36,901 INFO L895 garLoopResultBuilder]: At program point L43-7(lines 43 45) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= 2 ~N~0)) [2022-10-16 14:52:36,901 INFO L899 garLoopResultBuilder]: For program point L43-8(lines 43 45) no Hoare annotation was computed. [2022-10-16 14:52:36,906 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:36,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:52:36,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:52:36 BoogieIcfgContainer [2022-10-16 14:52:36,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:52:36,933 INFO L158 Benchmark]: Toolchain (without parser) took 9363.67ms. Allocated memory was 154.1MB in the beginning and 188.7MB in the end (delta: 34.6MB). Free memory was 128.8MB in the beginning and 110.4MB in the end (delta: 18.4MB). Peak memory consumption was 54.0MB. Max. memory is 8.0GB. [2022-10-16 14:52:36,933 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 154.1MB. Free memory was 124.4MB in the beginning and 124.3MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:52:36,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.02ms. Allocated memory is still 154.1MB. Free memory was 128.4MB in the beginning and 118.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 14:52:36,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.08ms. Allocated memory is still 154.1MB. Free memory was 118.3MB in the beginning and 116.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:52:36,934 INFO L158 Benchmark]: Boogie Preprocessor took 40.45ms. Allocated memory is still 154.1MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:52:36,935 INFO L158 Benchmark]: RCFGBuilder took 531.51ms. Allocated memory is still 154.1MB. Free memory was 115.3MB in the beginning and 102.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 14:52:36,935 INFO L158 Benchmark]: TraceAbstraction took 8409.42ms. Allocated memory was 154.1MB in the beginning and 188.7MB in the end (delta: 34.6MB). Free memory was 102.2MB in the beginning and 110.4MB in the end (delta: -8.2MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. [2022-10-16 14:52:36,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 154.1MB. Free memory was 124.4MB in the beginning and 124.3MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 318.02ms. Allocated memory is still 154.1MB. Free memory was 128.4MB in the beginning and 118.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.08ms. Allocated memory is still 154.1MB. Free memory was 118.3MB in the beginning and 116.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.45ms. Allocated memory is still 154.1MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 531.51ms. Allocated memory is still 154.1MB. Free memory was 115.3MB in the beginning and 102.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 8409.42ms. Allocated memory was 154.1MB in the beginning and 188.7MB in the end (delta: 34.6MB). Free memory was 102.2MB in the beginning and 110.4MB in the end (delta: -8.2MB). Peak memory consumption was 26.8MB. 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: 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: 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 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: 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 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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, 45 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 402 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 392 mSDsluCounter, 1343 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 922 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 549 IncrementalHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 421 mSDtfsCounter, 549 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 605 GetRequests, 495 SyntacticMatches, 4 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=2, InterpolantAutomatonStates: 86, 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, 15 MinimizatonAttempts, 95 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 21 PreInvPairs, 37 NumberOfFragments, 50 HoareAnnotationTreeSize, 21 FomulaSimplifications, 107 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 374 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 813 NumberOfCodeBlocks, 742 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 935 ConstructedInterpolants, 0 QuantifiedInterpolants, 1825 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1275 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 30 InterpolantComputations, 11 PerfectInterpolantSequences, 575/733 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 10 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (N <= 2147483647 && 0 <= i + 2147483648) && 2 <= N - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((1 <= i || !(2 <= N)) || i == 0) || !(N <= 2147483647) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 14:52:36,988 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...