/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/recursive-simple/id_i10_o10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:47:05,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:47:05,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:47:06,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 17:47:06,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:47:06,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:47:06,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:47:06,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:47:06,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:47:06,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:47:06,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:47:06,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:47:06,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:47:06,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:47:06,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:47:06,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:47:06,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:47:06,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:47:06,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:47:06,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:47:06,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:47:06,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:47:06,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:47:06,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:47:06,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:47:06,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:47:06,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:47:06,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:47:06,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:47:06,208 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:47:06,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:47:06,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:47:06,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:47:06,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:47:06,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:47:06,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:47:06,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:47:06,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:47:06,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:47:06,211 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:47:06,211 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:47:06,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:47:06,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:47:06,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:47:06,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:47:06,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:47:06,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:47:06,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:47:06,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:47:06,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:47:06,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:47:06,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:47:06,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:47:06,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:47:06,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:47:06,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:47:06,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:47:06,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:47:06,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:47:06,686 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:47:06,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i10_o10-1.c [2022-10-16 17:47:06,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f91edb5/5f7dbe21c8054b309f253d9892c968fc/FLAGe2c5d5a79 [2022-10-16 17:47:07,331 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:47:07,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i10_o10-1.c [2022-10-16 17:47:07,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f91edb5/5f7dbe21c8054b309f253d9892c968fc/FLAGe2c5d5a79 [2022-10-16 17:47:07,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f91edb5/5f7dbe21c8054b309f253d9892c968fc [2022-10-16 17:47:07,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:47:07,701 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:47:07,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:47:07,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:47:07,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:47:07,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:47:07" (1/1) ... [2022-10-16 17:47:07,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f732a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:07, skipping insertion in model container [2022-10-16 17:47:07,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:47:07" (1/1) ... [2022-10-16 17:47:07,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:47:07,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:47:07,956 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/recursive-simple/id_i10_o10-1.c[454,467] [2022-10-16 17:47:07,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:47:07,969 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:47:07,987 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/recursive-simple/id_i10_o10-1.c[454,467] [2022-10-16 17:47:07,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:47:08,006 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:47:08,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08 WrapperNode [2022-10-16 17:47:08,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:47:08,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:47:08,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:47:08,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:47:08,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,051 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-16 17:47:08,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:47:08,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:47:08,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:47:08,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:47:08,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,073 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:47:08,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:47:08,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:47:08,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:47:08,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (1/1) ... [2022-10-16 17:47:08,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:47:08,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:08,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:47:08,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:47:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:47:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:47:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:47:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:47:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-16 17:47:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-16 17:47:08,270 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:47:08,273 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:47:08,461 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:47:08,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:47:08,469 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 17:47:08,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:47:08 BoogieIcfgContainer [2022-10-16 17:47:08,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:47:08,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:47:08,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:47:08,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:47:08,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:47:07" (1/3) ... [2022-10-16 17:47:08,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ac440f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:47:08, skipping insertion in model container [2022-10-16 17:47:08,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:08" (2/3) ... [2022-10-16 17:47:08,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ac440f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:47:08, skipping insertion in model container [2022-10-16 17:47:08,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:47:08" (3/3) ... [2022-10-16 17:47:08,483 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i10_o10-1.c [2022-10-16 17:47:08,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:47:08,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:47:08,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:47:08,582 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;@7c32637c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:47:08,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:47:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:47:08,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:47:08,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:08,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:47:08,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:08,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:08,608 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-10-16 17:47:08,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:08,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485171287] [2022-10-16 17:47:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:08,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:08,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485171287] [2022-10-16 17:47:08,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485171287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:08,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:08,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:47:08,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265170777] [2022-10-16 17:47:08,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:08,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:47:08,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:08,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:47:08,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:47:08,971 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:09,070 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-10-16 17:47:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:47:09,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2022-10-16 17:47:09,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:09,092 INFO L225 Difference]: With dead ends: 26 [2022-10-16 17:47:09,092 INFO L226 Difference]: Without dead ends: 16 [2022-10-16 17:47:09,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 17:47:09,105 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:09,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-16 17:47:09,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-16 17:47:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-10-16 17:47:09,143 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2022-10-16 17:47:09,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:09,144 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-10-16 17:47:09,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-16 17:47:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:47:09,145 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:09,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:09,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:47:09,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:09,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:09,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1829163585, now seen corresponding path program 1 times [2022-10-16 17:47:09,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:09,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759744851] [2022-10-16 17:47:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:09,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:09,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:09,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759744851] [2022-10-16 17:47:09,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759744851] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:09,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:09,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:47:09,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391779458] [2022-10-16 17:47:09,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:09,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:47:09,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:09,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:47:09,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:47:09,226 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:09,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:09,271 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-10-16 17:47:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:47:09,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 7 [2022-10-16 17:47:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:09,273 INFO L225 Difference]: With dead ends: 31 [2022-10-16 17:47:09,273 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 17:47:09,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 17:47:09,276 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:09,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 17:47:09,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-10-16 17:47:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 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 17:47:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-10-16 17:47:09,286 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2022-10-16 17:47:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:09,287 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-10-16 17:47:09,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-10-16 17:47:09,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:47:09,289 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:09,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:09,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:47:09,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:09,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:09,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-10-16 17:47:09,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:09,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744652581] [2022-10-16 17:47:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:09,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:09,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:09,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744652581] [2022-10-16 17:47:09,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744652581] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:09,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228713763] [2022-10-16 17:47:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:09,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:09,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:09,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:47:09,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:47:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:09,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:47:09,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:09,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:09,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:09,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228713763] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:09,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:09,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 17:47:09,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245942053] [2022-10-16 17:47:09,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:09,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:47:09,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:09,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:47:09,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:47:09,714 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:10,031 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-10-16 17:47:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:47:10,033 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:47:10,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:10,039 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:47:10,040 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 17:47:10,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:47:10,045 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:10,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 89 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:47:10,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 17:47:10,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-10-16 17:47:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 17:47:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-10-16 17:47:10,096 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-10-16 17:47:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:10,097 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-10-16 17:47:10,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:10,099 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-10-16 17:47:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:47:10,100 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:10,101 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:10,129 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 17:47:10,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:10,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:10,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:10,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-10-16 17:47:10,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:10,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843351992] [2022-10-16 17:47:10,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:10,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:10,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 17:47:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 17:47:10,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:10,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843351992] [2022-10-16 17:47:10,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843351992] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:10,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:10,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:47:10,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469021842] [2022-10-16 17:47:10,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:10,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:47:10,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:10,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:47:10,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:47:10,457 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:10,500 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-10-16 17:47:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:47:10,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-16 17:47:10,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:10,503 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:47:10,504 INFO L226 Difference]: Without dead ends: 72 [2022-10-16 17:47:10,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:47:10,506 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:10,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-16 17:47:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-10-16 17:47:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-10-16 17:47:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-10-16 17:47:10,528 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-10-16 17:47:10,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:10,529 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-10-16 17:47:10,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-10-16 17:47:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:47:10,531 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:10,531 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:10,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:47:10,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:10,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-10-16 17:47:10,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:10,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040597931] [2022-10-16 17:47:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:10,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:10,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 17:47:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:10,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:10,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040597931] [2022-10-16 17:47:10,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040597931] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:10,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90905505] [2022-10-16 17:47:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:10,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:10,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:10,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:47:10,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:47:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:10,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:47:10,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:47:11,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:11,282 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:47:11,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90905505] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:11,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:11,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-10-16 17:47:11,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321595409] [2022-10-16 17:47:11,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:11,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:47:11,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:11,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:47:11,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:47:11,287 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:47:11,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:11,581 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-10-16 17:47:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:47:11,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-10-16 17:47:11,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:11,591 INFO L225 Difference]: With dead ends: 101 [2022-10-16 17:47:11,591 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 17:47:11,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:47:11,601 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 109 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:11,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 91 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:11,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 17:47:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-10-16 17:47:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-10-16 17:47:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-10-16 17:47:11,642 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-10-16 17:47:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:11,642 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-10-16 17:47:11,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:47:11,643 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-10-16 17:47:11,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:47:11,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:11,644 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 17:47:11,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:11,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:11,845 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:11,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-10-16 17:47:11,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:11,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128299633] [2022-10-16 17:47:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:11,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:12,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:12,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128299633] [2022-10-16 17:47:12,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128299633] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:12,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696821351] [2022-10-16 17:47:12,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:47:12,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:12,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:12,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:47:12,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:47:12,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:47:12,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:12,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:47:12,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:12,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:12,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696821351] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:12,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:12,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-16 17:47:12,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502122965] [2022-10-16 17:47:12,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:12,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:47:12,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:12,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:47:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:47:12,318 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:12,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:12,709 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-10-16 17:47:12,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 17:47:12,710 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 17:47:12,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:12,712 INFO L225 Difference]: With dead ends: 220 [2022-10-16 17:47:12,712 INFO L226 Difference]: Without dead ends: 197 [2022-10-16 17:47:12,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 17:47:12,715 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 304 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:12,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 202 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:47:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-16 17:47:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-10-16 17:47:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:47:12,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-10-16 17:47:12,741 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-10-16 17:47:12,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:12,742 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-10-16 17:47:12,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:12,742 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-10-16 17:47:12,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:47:12,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:12,744 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:12,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:12,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:12,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-10-16 17:47:12,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:12,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836315835] [2022-10-16 17:47:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:12,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 17:47:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 17:47:13,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:13,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836315835] [2022-10-16 17:47:13,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836315835] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:13,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:13,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:47:13,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140705038] [2022-10-16 17:47:13,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:13,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:47:13,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:13,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:47:13,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:47:13,080 INFO L87 Difference]: Start difference. First operand 177 states and 205 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, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:13,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:13,095 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-10-16 17:47:13,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:47:13,095 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, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-10-16 17:47:13,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:13,098 INFO L225 Difference]: With dead ends: 177 [2022-10-16 17:47:13,099 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 17:47:13,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:47:13,104 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:13,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:13,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 17:47:13,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-10-16 17:47:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:47:13,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-10-16 17:47:13,137 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-10-16 17:47:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:13,138 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-10-16 17:47:13,138 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, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-10-16 17:47:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 17:47:13,140 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:13,140 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:47:13,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:47:13,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:13,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:13,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-10-16 17:47:13,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:13,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526220101] [2022-10-16 17:47:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:13,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:13,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 17:47:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:13,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:13,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526220101] [2022-10-16 17:47:13,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526220101] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:13,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570538425] [2022-10-16 17:47:13,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:47:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:13,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:13,458 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 17:47:13,489 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 17:47:13,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:47:13,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:13,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 17:47:13,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 17:47:13,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:14,032 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 17:47:14,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570538425] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:14,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:14,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 26 [2022-10-16 17:47:14,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402865150] [2022-10-16 17:47:14,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:14,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 17:47:14,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:14,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 17:47:14,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2022-10-16 17:47:14,036 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 17:47:14,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:14,298 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-10-16 17:47:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:47:14,299 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) Word has length 44 [2022-10-16 17:47:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:14,305 INFO L225 Difference]: With dead ends: 224 [2022-10-16 17:47:14,305 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 17:47:14,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=982, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 17:47:14,309 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 179 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:14,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 315 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:14,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 17:47:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-10-16 17:47:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 109 states have internal predecessors, (123), 12 states have call successors, (12), 11 states have call predecessors, (12), 15 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2022-10-16 17:47:14,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-10-16 17:47:14,337 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 44 [2022-10-16 17:47:14,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:14,338 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-10-16 17:47:14,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 17:47:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-10-16 17:47:14,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 17:47:14,344 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:14,344 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-10-16 17:47:14,383 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 17:47:14,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:14,558 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:14,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:14,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-10-16 17:47:14,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:14,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751083983] [2022-10-16 17:47:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:14,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:14,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:14,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751083983] [2022-10-16 17:47:14,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751083983] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:14,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195669399] [2022-10-16 17:47:14,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:47:14,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:14,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:14,984 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 17:47:14,990 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 17:47:15,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 17:47:15,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:15,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 17:47:15,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:15,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:15,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195669399] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:15,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:15,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-10-16 17:47:15,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651855078] [2022-10-16 17:47:15,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:15,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:47:15,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:15,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:47:15,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:47:15,733 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:16,084 INFO L93 Difference]: Finished difference Result 185 states and 194 transitions. [2022-10-16 17:47:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 17:47:16,085 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 17:47:16,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:16,087 INFO L225 Difference]: With dead ends: 185 [2022-10-16 17:47:16,087 INFO L226 Difference]: Without dead ends: 139 [2022-10-16 17:47:16,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1045, Invalid=2495, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 17:47:16,091 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 269 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:16,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 365 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:47:16,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-10-16 17:47:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 129. [2022-10-16 17:47:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 103 states have (on average 1.1067961165048543) internal successors, (114), 101 states have internal predecessors, (114), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2022-10-16 17:47:16,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2022-10-16 17:47:16,103 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 57 [2022-10-16 17:47:16,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:16,104 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2022-10-16 17:47:16,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:16,105 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2022-10-16 17:47:16,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 17:47:16,106 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:16,107 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:47:16,146 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 17:47:16,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:16,322 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash -519668988, now seen corresponding path program 3 times [2022-10-16 17:47:16,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:16,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719403013] [2022-10-16 17:47:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:16,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 17:47:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:16,519 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-16 17:47:16,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:16,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719403013] [2022-10-16 17:47:16,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719403013] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:16,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629207986] [2022-10-16 17:47:16,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:47:16,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:16,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:16,522 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 17:47:16,545 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 17:47:16,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 17:47:16,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:16,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:47:16,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-10-16 17:47:16,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:16,791 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-10-16 17:47:16,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629207986] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:16,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:16,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2022-10-16 17:47:16,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117365363] [2022-10-16 17:47:16,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:16,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 17:47:16,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:16,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 17:47:16,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:47:16,794 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 17:47:16,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:16,932 INFO L93 Difference]: Finished difference Result 228 states and 266 transitions. [2022-10-16 17:47:16,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:47:16,933 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-10-16 17:47:16,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:16,935 INFO L225 Difference]: With dead ends: 228 [2022-10-16 17:47:16,935 INFO L226 Difference]: Without dead ends: 227 [2022-10-16 17:47:16,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-10-16 17:47:16,937 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 32 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:16,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 41 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:16,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-10-16 17:47:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2022-10-16 17:47:16,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 183 states have (on average 1.0601092896174864) internal successors, (194), 177 states have internal predecessors, (194), 12 states have call successors, (12), 11 states have call predecessors, (12), 31 states have return successors, (38), 38 states have call predecessors, (38), 11 states have call successors, (38) [2022-10-16 17:47:16,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2022-10-16 17:47:16,955 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 69 [2022-10-16 17:47:16,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:16,956 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2022-10-16 17:47:16,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 17:47:16,956 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2022-10-16 17:47:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 17:47:16,959 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:16,959 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 17:47:16,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 17:47:17,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:17,174 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:17,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:17,175 INFO L85 PathProgramCache]: Analyzing trace with hash -154574268, now seen corresponding path program 4 times [2022-10-16 17:47:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:17,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256190863] [2022-10-16 17:47:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 17:47:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:17,848 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 10 proven. 99 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-10-16 17:47:17,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:17,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256190863] [2022-10-16 17:47:17,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256190863] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:17,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281224670] [2022-10-16 17:47:17,849 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:47:17,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:17,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:17,850 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 17:47:17,875 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 17:47:17,915 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:47:17,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:17,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:47:17,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-10-16 17:47:17,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-10-16 17:47:19,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281224670] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:19,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:19,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-10-16 17:47:19,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822848322] [2022-10-16 17:47:19,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:19,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 17:47:19,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:19,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 17:47:19,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 17:47:19,275 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:47:19,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:19,636 INFO L93 Difference]: Finished difference Result 614 states and 715 transitions. [2022-10-16 17:47:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 17:47:19,637 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 89 [2022-10-16 17:47:19,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:19,640 INFO L225 Difference]: With dead ends: 614 [2022-10-16 17:47:19,640 INFO L226 Difference]: Without dead ends: 378 [2022-10-16 17:47:19,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-10-16 17:47:19,644 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 71 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:19,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 73 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:19,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-10-16 17:47:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2022-10-16 17:47:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 305 states have (on average 1.0360655737704918) internal successors, (316), 296 states have internal predecessors, (316), 12 states have call successors, (12), 11 states have call predecessors, (12), 60 states have return successors, (70), 70 states have call predecessors, (70), 11 states have call successors, (70) [2022-10-16 17:47:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 398 transitions. [2022-10-16 17:47:19,667 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 398 transitions. Word has length 89 [2022-10-16 17:47:19,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:19,667 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 398 transitions. [2022-10-16 17:47:19,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:47:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 398 transitions. [2022-10-16 17:47:19,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-10-16 17:47:19,671 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:19,672 INFO L195 NwaCegarLoop]: trace histogram [27, 26, 26, 26, 26, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 17:47:19,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:19,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:19,886 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:19,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1285693380, now seen corresponding path program 5 times [2022-10-16 17:47:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:19,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335085226] [2022-10-16 17:47:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:19,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 17:47:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:21,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:21,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:21,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 26 proven. 511 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-10-16 17:47:22,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:22,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335085226] [2022-10-16 17:47:22,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335085226] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:22,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544037671] [2022-10-16 17:47:22,766 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:47:22,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:22,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:22,768 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 17:47:22,778 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 17:47:22,953 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2022-10-16 17:47:22,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:22,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 56 conjunts are in the unsatisfiable core [2022-10-16 17:47:22,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:24,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 841 proven. 864 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-10-16 17:47:24,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 841 proven. 1242 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-16 17:47:39,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544037671] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:39,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:39,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 43, 57] total 114 [2022-10-16 17:47:39,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922451188] [2022-10-16 17:47:39,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:39,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-10-16 17:47:39,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:39,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-10-16 17:47:39,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1383, Invalid=11499, Unknown=0, NotChecked=0, Total=12882 [2022-10-16 17:47:39,260 INFO L87 Difference]: Start difference. First operand 378 states and 398 transitions. Second operand has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) [2022-10-16 17:47:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:39,941 INFO L93 Difference]: Finished difference Result 382 states and 402 transitions. [2022-10-16 17:47:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 17:47:39,948 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) Word has length 209 [2022-10-16 17:47:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:39,949 INFO L225 Difference]: With dead ends: 382 [2022-10-16 17:47:39,949 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 17:47:39,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 350 SyntacticMatches, 15 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7942 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2213, Invalid=13789, Unknown=0, NotChecked=0, Total=16002 [2022-10-16 17:47:39,956 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 75 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:39,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 85 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 17:47:39,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 17:47:39,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 17:47:39,958 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 17:47:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 17:47:39,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 209 [2022-10-16 17:47:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:39,958 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 17:47:39,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) [2022-10-16 17:47:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 17:47:39,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 17:47:39,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 17:47:39,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 17:47:39,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 17:47:39,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 17:47:39,993 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 17:47:40,176 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,SelfDestructingSolverStorable11 [2022-10-16 17:47:40,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 17:47:40,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 17:47:40,423 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 17:47:40,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 17:47:40,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 17:47:40,424 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-10-16 17:47:40,424 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-10-16 17:47:40,424 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~input~0#1| 10) (<= 10 |ULTIMATE.start_main_~input~0#1|)) [2022-10-16 17:47:40,424 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-16 17:47:40,425 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-10-16 17:47:40,425 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,425 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,425 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:47:40,425 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:47:40,425 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-10-16 17:47:40,426 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,426 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,426 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,426 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-10-16 17:47:40,426 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,427 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 4 |id_#in~x|)) (not (<= |id_#in~x| 10))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 2))) (or (not (<= 3 |id_#in~x|)) (and (<= 3 id_~x) (<= id_~x 3)) (not (<= |id_#in~x| 3))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))))) [2022-10-16 17:47:40,427 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,427 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,427 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-10-16 17:47:40,431 INFO L444 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1, 1, 1] [2022-10-16 17:47:40,434 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:47:40,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:47:40 BoogieIcfgContainer [2022-10-16 17:47:40,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:47:40,439 INFO L158 Benchmark]: Toolchain (without parser) took 32742.50ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 127.0MB in the beginning and 263.5MB in the end (delta: -136.6MB). Peak memory consumption was 91.2MB. Max. memory is 8.0GB. [2022-10-16 17:47:40,439 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:47:40,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.98ms. Allocated memory is still 151.0MB. Free memory was 126.7MB in the beginning and 117.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:47:40,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.08ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 115.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:47:40,440 INFO L158 Benchmark]: Boogie Preprocessor took 24.02ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 115.0MB in the end (delta: 899.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:47:40,440 INFO L158 Benchmark]: RCFGBuilder took 395.17ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 105.6MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:47:40,441 INFO L158 Benchmark]: TraceAbstraction took 31963.33ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 105.0MB in the beginning and 263.5MB in the end (delta: -158.6MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. [2022-10-16 17:47:40,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 303.98ms. Allocated memory is still 151.0MB. Free memory was 126.7MB in the beginning and 117.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.08ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 115.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.02ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 115.0MB in the end (delta: 899.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 395.17ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 105.6MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 31963.33ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 105.0MB in the beginning and 263.5MB in the end (delta: -158.6MB). Peak memory consumption was 69.2MB. 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 31.9s, OverallIterations: 12, TraceHistogramMax: 27, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1229 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1195 mSDsluCounter, 1410 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1176 mSDsCounter, 324 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2235 IncrementalHoareTripleChecker+Invalid, 2559 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 324 mSolverCounterUnsat, 234 mSDtfsCounter, 2235 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1344 GetRequests, 934 SyntacticMatches, 20 SemanticMatches, 390 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10854 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=11, InterpolantAutomatonStates: 195, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 69 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 25 PreInvPairs, 25 NumberOfFragments, 70 HoareAnnotationTreeSize, 25 FomulaSimplifications, 272 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 584 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 1094 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 1637 ConstructedInterpolants, 0 QuantifiedInterpolants, 4240 SizeOfPredicates, 54 NumberOfNonLiveVariables, 1088 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 28 InterpolantComputations, 4 PerfectInterpolantSequences, 5538/9647 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-16 17:47:40,495 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...