/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/float-newlib/double_req_bl_0250b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:56:32,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:56:32,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:56:32,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:56:32,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:56:32,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:56:32,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:56:32,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:56:32,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:56:32,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:56:32,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:56:32,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:56:32,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:56:32,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:56:32,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:56:32,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:56:32,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:56:32,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:56:32,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:56:32,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:56:32,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:56:32,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:56:32,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:56:32,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:56:32,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:56:32,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:56:32,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:56:32,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:56:32,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:56:32,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:56:32,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:56:32,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:56:32,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:56:32,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:56:32,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:56:32,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:56:32,995 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 11:56:33,041 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:56:33,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:56:33,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:56:33,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:56:33,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:56:33,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:56:33,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:56:33,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:56:33,044 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:56:33,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:56:33,044 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:56:33,044 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:56:33,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:56:33,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:56:33,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:56:33,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:56:33,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:56:33,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:56:33,046 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:56:33,046 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:56:33,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:56:33,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:56:33,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:56:33,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:56:33,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:56:33,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:56:33,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:56:33,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:56:33,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:56:33,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:56:33,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:56:33,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:56:33,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:56:33,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:56:33,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:56:33,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:56:33,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:56:33,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:56:33,419 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:56:33,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0250b.c [2022-10-16 11:56:33,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82fda598/aeb1ab97852142df8ad0a4a6765fcb47/FLAGf09fda361 [2022-10-16 11:56:34,168 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:56:34,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0250b.c [2022-10-16 11:56:34,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82fda598/aeb1ab97852142df8ad0a4a6765fcb47/FLAGf09fda361 [2022-10-16 11:56:34,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82fda598/aeb1ab97852142df8ad0a4a6765fcb47 [2022-10-16 11:56:34,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:56:34,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:56:34,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:56:34,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:56:34,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:56:34,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:34,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf07896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34, skipping insertion in model container [2022-10-16 11:56:34,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:34,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:56:34,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:56:34,868 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/float-newlib/double_req_bl_0250b.c[5947,5960] [2022-10-16 11:56:34,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:56:34,886 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:56:34,963 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/float-newlib/double_req_bl_0250b.c[5947,5960] [2022-10-16 11:56:34,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:56:34,981 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:56:34,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34 WrapperNode [2022-10-16 11:56:34,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:56:34,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:56:34,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:56:34,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:56:34,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,066 INFO L138 Inliner]: procedures = 18, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 347 [2022-10-16 11:56:35,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:56:35,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:56:35,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:56:35,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:56:35,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,125 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:56:35,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:56:35,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:56:35,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:56:35,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (1/1) ... [2022-10-16 11:56:35,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:56:35,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:35,186 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 11:56:35,206 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 11:56:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:56:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:56:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:56:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-16 11:56:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:56:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 11:56:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:56:35,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:56:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:56:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:56:35,380 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:56:35,383 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:56:36,261 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:56:36,273 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:56:36,274 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-10-16 11:56:36,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:56:36 BoogieIcfgContainer [2022-10-16 11:56:36,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:56:36,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:56:36,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:56:36,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:56:36,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:56:34" (1/3) ... [2022-10-16 11:56:36,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2410715a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:56:36, skipping insertion in model container [2022-10-16 11:56:36,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:56:34" (2/3) ... [2022-10-16 11:56:36,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2410715a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:56:36, skipping insertion in model container [2022-10-16 11:56:36,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:56:36" (3/3) ... [2022-10-16 11:56:36,289 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0250b.c [2022-10-16 11:56:36,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:56:36,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-10-16 11:56:36,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:56:36,421 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;@460b9130, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:56:36,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-10-16 11:56:36,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 103 states have (on average 1.8349514563106797) internal successors, (189), 135 states have internal predecessors, (189), 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 11:56:36,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 11:56:36,436 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:36,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:36,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:36,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1812618945, now seen corresponding path program 1 times [2022-10-16 11:56:36,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:36,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250617965] [2022-10-16 11:56:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:36,722 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 11:56:36,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:36,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250617965] [2022-10-16 11:56:36,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250617965] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:36,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:36,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:56:36,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071294834] [2022-10-16 11:56:36,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:36,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:56:36,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:36,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:56:36,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:56:36,769 INFO L87 Difference]: Start difference. First operand has 136 states, 103 states have (on average 1.8349514563106797) internal successors, (189), 135 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 11:56:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:36,804 INFO L93 Difference]: Finished difference Result 270 states and 376 transitions. [2022-10-16 11:56:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:56:36,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 11:56:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:36,821 INFO L225 Difference]: With dead ends: 270 [2022-10-16 11:56:36,821 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 11:56:36,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:56:36,830 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:36,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:36,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 11:56:36,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-10-16 11:56:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 88 states have (on average 1.5909090909090908) internal successors, (140), 119 states have internal predecessors, (140), 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 11:56:36,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2022-10-16 11:56:36,878 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 7 [2022-10-16 11:56:36,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:36,879 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2022-10-16 11:56:36,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 11:56:36,880 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2022-10-16 11:56:36,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:56:36,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:36,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:36,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:56:36,881 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:36,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:36,882 INFO L85 PathProgramCache]: Analyzing trace with hash 327359923, now seen corresponding path program 1 times [2022-10-16 11:56:36,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:36,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755714238] [2022-10-16 11:56:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:36,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:37,045 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 11:56:37,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:37,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755714238] [2022-10-16 11:56:37,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755714238] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:37,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:37,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:56:37,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369820007] [2022-10-16 11:56:37,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:37,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:56:37,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:37,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:56:37,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:37,049 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:37,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:37,122 INFO L93 Difference]: Finished difference Result 334 states and 389 transitions. [2022-10-16 11:56:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:56:37,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:56:37,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:37,139 INFO L225 Difference]: With dead ends: 334 [2022-10-16 11:56:37,139 INFO L226 Difference]: Without dead ends: 226 [2022-10-16 11:56:37,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:56:37,143 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 123 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:37,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 265 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:37,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-10-16 11:56:37,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 122. [2022-10-16 11:56:37,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.5777777777777777) internal successors, (142), 121 states have internal predecessors, (142), 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 11:56:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2022-10-16 11:56:37,174 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 9 [2022-10-16 11:56:37,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:37,174 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2022-10-16 11:56:37,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2022-10-16 11:56:37,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:56:37,175 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:37,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:37,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:56:37,176 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:37,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2068754200, now seen corresponding path program 1 times [2022-10-16 11:56:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:37,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271917569] [2022-10-16 11:56:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:37,488 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 11:56:37,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:37,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271917569] [2022-10-16 11:56:37,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271917569] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:37,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:37,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:56:37,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101692135] [2022-10-16 11:56:37,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:37,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:56:37,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:37,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:56:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:37,494 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 11:56:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:37,531 INFO L93 Difference]: Finished difference Result 122 states and 142 transitions. [2022-10-16 11:56:37,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:56:37,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 11:56:37,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:37,535 INFO L225 Difference]: With dead ends: 122 [2022-10-16 11:56:37,535 INFO L226 Difference]: Without dead ends: 121 [2022-10-16 11:56:37,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:56:37,540 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 126 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:37,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 138 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:37,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-16 11:56:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-10-16 11:56:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 90 states have (on average 1.5666666666666667) internal successors, (141), 120 states have internal predecessors, (141), 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 11:56:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2022-10-16 11:56:37,563 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 12 [2022-10-16 11:56:37,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:37,564 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2022-10-16 11:56:37,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 11:56:37,566 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2022-10-16 11:56:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:56:37,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:37,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:37,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:56:37,567 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:37,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:37,568 INFO L85 PathProgramCache]: Analyzing trace with hash -293129156, now seen corresponding path program 1 times [2022-10-16 11:56:37,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:37,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829400181] [2022-10-16 11:56:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:37,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:37,656 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 11:56:37,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:37,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829400181] [2022-10-16 11:56:37,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829400181] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:37,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:37,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:56:37,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525580059] [2022-10-16 11:56:37,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:37,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:56:37,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:37,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:56:37,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:37,660 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 11:56:37,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:37,674 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2022-10-16 11:56:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:56:37,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 11:56:37,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:37,676 INFO L225 Difference]: With dead ends: 121 [2022-10-16 11:56:37,676 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 11:56:37,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:37,678 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:37,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:37,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 11:56:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-10-16 11:56:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 86 states have (on average 1.5813953488372092) internal successors, (136), 115 states have internal predecessors, (136), 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 11:56:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2022-10-16 11:56:37,686 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 13 [2022-10-16 11:56:37,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:37,687 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2022-10-16 11:56:37,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 11:56:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2022-10-16 11:56:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:56:37,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:37,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:37,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 11:56:37,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:37,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:37,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1082395277, now seen corresponding path program 1 times [2022-10-16 11:56:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:37,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620166390] [2022-10-16 11:56:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:37,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:37,887 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 11:56:37,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:37,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620166390] [2022-10-16 11:56:37,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620166390] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:37,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:37,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:56:37,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589711755] [2022-10-16 11:56:37,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:37,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:56:37,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:37,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:56:37,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:56:37,893 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:38,129 INFO L93 Difference]: Finished difference Result 191 states and 227 transitions. [2022-10-16 11:56:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:56:38,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 11:56:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:38,132 INFO L225 Difference]: With dead ends: 191 [2022-10-16 11:56:38,132 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 11:56:38,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:56:38,136 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 224 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:38,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 188 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:56:38,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 11:56:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 116. [2022-10-16 11:56:38,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 115 states have internal predecessors, (136), 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 11:56:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2022-10-16 11:56:38,147 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 23 [2022-10-16 11:56:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:38,148 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2022-10-16 11:56:38,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2022-10-16 11:56:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:56:38,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:38,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:38,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 11:56:38,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash 805485006, now seen corresponding path program 1 times [2022-10-16 11:56:38,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:38,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869980618] [2022-10-16 11:56:38,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:38,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:38,267 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 11:56:38,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:38,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869980618] [2022-10-16 11:56:38,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869980618] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:38,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:38,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:56:38,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620032808] [2022-10-16 11:56:38,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:38,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:56:38,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:38,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:56:38,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:56:38,272 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 11:56:38,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:38,514 INFO L93 Difference]: Finished difference Result 302 states and 359 transitions. [2022-10-16 11:56:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:56:38,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 11:56:38,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:38,516 INFO L225 Difference]: With dead ends: 302 [2022-10-16 11:56:38,517 INFO L226 Difference]: Without dead ends: 216 [2022-10-16 11:56:38,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:56:38,519 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 123 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:38,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 399 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:56:38,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-10-16 11:56:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 158. [2022-10-16 11:56:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.6046511627906976) internal successors, (207), 157 states have internal predecessors, (207), 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 11:56:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2022-10-16 11:56:38,531 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 24 [2022-10-16 11:56:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:38,532 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2022-10-16 11:56:38,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 11:56:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2022-10-16 11:56:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:56:38,534 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:38,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:38,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 11:56:38,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:38,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:38,535 INFO L85 PathProgramCache]: Analyzing trace with hash 931309331, now seen corresponding path program 1 times [2022-10-16 11:56:38,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:38,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008646795] [2022-10-16 11:56:38,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:38,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:38,604 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 11:56:38,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:38,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008646795] [2022-10-16 11:56:38,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008646795] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:38,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:38,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:56:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647908268] [2022-10-16 11:56:38,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:38,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:56:38,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:38,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:56:38,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:38,608 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:38,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:38,657 INFO L93 Difference]: Finished difference Result 273 states and 363 transitions. [2022-10-16 11:56:38,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:56:38,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 11:56:38,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:38,660 INFO L225 Difference]: With dead ends: 273 [2022-10-16 11:56:38,660 INFO L226 Difference]: Without dead ends: 269 [2022-10-16 11:56:38,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:38,662 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 89 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:38,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 316 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:38,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-10-16 11:56:38,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 165. [2022-10-16 11:56:38,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 136 states have (on average 1.5955882352941178) internal successors, (217), 164 states have internal predecessors, (217), 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 11:56:38,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 217 transitions. [2022-10-16 11:56:38,672 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 217 transitions. Word has length 26 [2022-10-16 11:56:38,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:38,673 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 217 transitions. [2022-10-16 11:56:38,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 217 transitions. [2022-10-16 11:56:38,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:56:38,674 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:38,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:38,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:56:38,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:38,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:38,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1393194489, now seen corresponding path program 1 times [2022-10-16 11:56:38,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:38,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202301225] [2022-10-16 11:56:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:38,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:38,807 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 11:56:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:38,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202301225] [2022-10-16 11:56:38,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202301225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:38,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:38,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:56:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28307510] [2022-10-16 11:56:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:38,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:56:38,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:38,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:56:38,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:56:38,810 INFO L87 Difference]: Start difference. First operand 165 states and 217 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:38,971 INFO L93 Difference]: Finished difference Result 217 states and 260 transitions. [2022-10-16 11:56:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:56:38,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 11:56:38,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:38,973 INFO L225 Difference]: With dead ends: 217 [2022-10-16 11:56:38,973 INFO L226 Difference]: Without dead ends: 216 [2022-10-16 11:56:38,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:56:38,975 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 111 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:38,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 399 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:56:38,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-10-16 11:56:38,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 164. [2022-10-16 11:56:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 135 states have (on average 1.6) internal successors, (216), 163 states have internal predecessors, (216), 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 11:56:38,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 216 transitions. [2022-10-16 11:56:38,984 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 216 transitions. Word has length 26 [2022-10-16 11:56:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:38,985 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 216 transitions. [2022-10-16 11:56:38,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 216 transitions. [2022-10-16 11:56:38,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:56:38,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:38,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:38,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 11:56:38,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:38,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:38,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1194179967, now seen corresponding path program 1 times [2022-10-16 11:56:38,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:38,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453907803] [2022-10-16 11:56:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:38,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:39,069 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 11:56:39,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:39,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453907803] [2022-10-16 11:56:39,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453907803] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:39,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:39,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:56:39,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600992329] [2022-10-16 11:56:39,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:39,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:56:39,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:39,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:56:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:56:39,072 INFO L87 Difference]: Start difference. First operand 164 states and 216 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:39,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:39,123 INFO L93 Difference]: Finished difference Result 268 states and 358 transitions. [2022-10-16 11:56:39,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:56:39,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 11:56:39,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:39,126 INFO L225 Difference]: With dead ends: 268 [2022-10-16 11:56:39,126 INFO L226 Difference]: Without dead ends: 266 [2022-10-16 11:56:39,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:56:39,127 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 88 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:39,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 506 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:39,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-10-16 11:56:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 167. [2022-10-16 11:56:39,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 138 states have (on average 1.5869565217391304) internal successors, (219), 166 states have internal predecessors, (219), 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 11:56:39,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2022-10-16 11:56:39,137 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 27 [2022-10-16 11:56:39,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:39,137 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2022-10-16 11:56:39,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:39,137 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2022-10-16 11:56:39,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:56:39,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:39,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:39,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 11:56:39,139 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:39,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:39,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1635076245, now seen corresponding path program 1 times [2022-10-16 11:56:39,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:39,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93335451] [2022-10-16 11:56:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:39,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:39,325 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 11:56:39,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:39,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93335451] [2022-10-16 11:56:39,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93335451] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:39,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:39,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 11:56:39,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063212810] [2022-10-16 11:56:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:39,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:56:39,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:56:39,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:56:39,328 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 11:56:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:39,534 INFO L93 Difference]: Finished difference Result 178 states and 231 transitions. [2022-10-16 11:56:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:56:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 11:56:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:39,536 INFO L225 Difference]: With dead ends: 178 [2022-10-16 11:56:39,536 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 11:56:39,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:56:39,537 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 18 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:39,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 359 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:56:39,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 11:56:39,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2022-10-16 11:56:39,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 144 states have (on average 1.5694444444444444) internal successors, (226), 172 states have internal predecessors, (226), 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 11:56:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 226 transitions. [2022-10-16 11:56:39,546 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 226 transitions. Word has length 28 [2022-10-16 11:56:39,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:39,547 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 226 transitions. [2022-10-16 11:56:39,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 11:56:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 226 transitions. [2022-10-16 11:56:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 11:56:39,548 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:39,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:39,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 11:56:39,549 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:39,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash -601082793, now seen corresponding path program 1 times [2022-10-16 11:56:39,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:39,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914064352] [2022-10-16 11:56:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:39,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:39,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:39,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914064352] [2022-10-16 11:56:39,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914064352] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:56:39,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694559143] [2022-10-16 11:56:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:39,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:39,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:39,642 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 11:56:39,666 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 11:56:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:39,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:56:39,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:56:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:39,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:56:39,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694559143] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:39,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:56:39,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-16 11:56:39,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140563648] [2022-10-16 11:56:39,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:39,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:56:39,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:39,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:56:39,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:56:39,855 INFO L87 Difference]: Start difference. First operand 173 states and 226 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 11:56:39,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:39,893 INFO L93 Difference]: Finished difference Result 266 states and 359 transitions. [2022-10-16 11:56:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:56:39,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 11:56:39,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:39,899 INFO L225 Difference]: With dead ends: 266 [2022-10-16 11:56:39,899 INFO L226 Difference]: Without dead ends: 264 [2022-10-16 11:56:39,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:56:39,900 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 92 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:39,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 491 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:39,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-10-16 11:56:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 170. [2022-10-16 11:56:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 143 states have (on average 1.5594405594405594) internal successors, (223), 169 states have internal predecessors, (223), 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 11:56:39,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 223 transitions. [2022-10-16 11:56:39,909 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 223 transitions. Word has length 30 [2022-10-16 11:56:39,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:39,910 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 223 transitions. [2022-10-16 11:56:39,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 11:56:39,910 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 223 transitions. [2022-10-16 11:56:39,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 11:56:39,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:39,911 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:39,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:56:40,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 11:56:40,126 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:40,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1900837867, now seen corresponding path program 1 times [2022-10-16 11:56:40,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:40,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526984483] [2022-10-16 11:56:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:40,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:40,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:40,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526984483] [2022-10-16 11:56:40,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526984483] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:56:40,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179449980] [2022-10-16 11:56:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:40,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:40,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:40,306 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 11:56:40,319 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 11:56:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:40,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:56:40,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:56:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:40,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:56:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:40,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179449980] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:56:40,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:56:40,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 11:56:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354235550] [2022-10-16 11:56:40,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:56:40,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:56:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:56:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:56:40,488 INFO L87 Difference]: Start difference. First operand 170 states and 223 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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 11:56:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:40,718 INFO L93 Difference]: Finished difference Result 280 states and 336 transitions. [2022-10-16 11:56:40,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 11:56:40,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 11:56:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:40,720 INFO L225 Difference]: With dead ends: 280 [2022-10-16 11:56:40,720 INFO L226 Difference]: Without dead ends: 279 [2022-10-16 11:56:40,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:56:40,721 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 319 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:40,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 469 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:56:40,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-10-16 11:56:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 179. [2022-10-16 11:56:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 152 states have (on average 1.5460526315789473) internal successors, (235), 178 states have internal predecessors, (235), 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 11:56:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2022-10-16 11:56:40,731 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 30 [2022-10-16 11:56:40,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:40,732 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2022-10-16 11:56:40,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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 11:56:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2022-10-16 11:56:40,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 11:56:40,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:40,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:40,771 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 11:56:40,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 11:56:40,949 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:40,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:40,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1453697189, now seen corresponding path program 1 times [2022-10-16 11:56:40,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:40,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376964823] [2022-10-16 11:56:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:40,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:41,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:41,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376964823] [2022-10-16 11:56:41,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376964823] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:56:41,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803195464] [2022-10-16 11:56:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:41,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:41,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:41,100 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 11:56:41,102 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 11:56:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:41,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:56:41,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:56:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:41,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:56:41,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803195464] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:41,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:56:41,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 11:56:41,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673580883] [2022-10-16 11:56:41,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:41,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:56:41,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:41,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:56:41,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:56:41,251 INFO L87 Difference]: Start difference. First operand 179 states and 235 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:41,316 INFO L93 Difference]: Finished difference Result 372 states and 506 transitions. [2022-10-16 11:56:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:56:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 11:56:41,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:41,320 INFO L225 Difference]: With dead ends: 372 [2022-10-16 11:56:41,320 INFO L226 Difference]: Without dead ends: 369 [2022-10-16 11:56:41,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:56:41,321 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 175 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:41,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 833 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:41,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-10-16 11:56:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 170. [2022-10-16 11:56:41,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 169 states have internal predecessors, (224), 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 11:56:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 224 transitions. [2022-10-16 11:56:41,332 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 224 transitions. Word has length 31 [2022-10-16 11:56:41,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:41,333 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 224 transitions. [2022-10-16 11:56:41,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:56:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 224 transitions. [2022-10-16 11:56:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 11:56:41,334 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:41,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:41,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 11:56:41,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:41,548 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1453695555, now seen corresponding path program 1 times [2022-10-16 11:56:41,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:41,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239300753] [2022-10-16 11:56:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:41,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:41,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239300753] [2022-10-16 11:56:41,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239300753] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:56:41,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349398815] [2022-10-16 11:56:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:41,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:41,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:41,702 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 11:56:41,724 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 11:56:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:41,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:56:41,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:56:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:41,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:56:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:41,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349398815] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:56:41,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:56:41,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:56:41,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279076014] [2022-10-16 11:56:41,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:56:41,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:56:41,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:41,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:56:41,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:56:41,920 INFO L87 Difference]: Start difference. First operand 170 states and 224 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 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 11:56:42,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:42,071 INFO L93 Difference]: Finished difference Result 604 states and 823 transitions. [2022-10-16 11:56:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:56:42,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 11:56:42,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:42,075 INFO L225 Difference]: With dead ends: 604 [2022-10-16 11:56:42,075 INFO L226 Difference]: Without dead ends: 603 [2022-10-16 11:56:42,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:56:42,076 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 526 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:42,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 919 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:56:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-10-16 11:56:42,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 182. [2022-10-16 11:56:42,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 158 states have (on average 1.5126582278481013) internal successors, (239), 181 states have internal predecessors, (239), 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 11:56:42,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 239 transitions. [2022-10-16 11:56:42,094 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 239 transitions. Word has length 31 [2022-10-16 11:56:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:42,094 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 239 transitions. [2022-10-16 11:56:42,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 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 11:56:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 239 transitions. [2022-10-16 11:56:42,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 11:56:42,096 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:42,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:42,128 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 11:56:42,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:42,313 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:42,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1641446500, now seen corresponding path program 1 times [2022-10-16 11:56:42,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:42,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700608770] [2022-10-16 11:56:42,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:42,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:42,642 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 11:56:42,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:42,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700608770] [2022-10-16 11:56:42,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700608770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:42,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:42,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:56:42,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464345959] [2022-10-16 11:56:42,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:42,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 11:56:42,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:42,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 11:56:42,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:56:42,644 INFO L87 Difference]: Start difference. First operand 182 states and 239 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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 11:56:42,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:42,936 INFO L93 Difference]: Finished difference Result 245 states and 317 transitions. [2022-10-16 11:56:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:56:42,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 11:56:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:42,938 INFO L225 Difference]: With dead ends: 245 [2022-10-16 11:56:42,938 INFO L226 Difference]: Without dead ends: 243 [2022-10-16 11:56:42,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:56:42,939 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 110 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:42,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 471 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:56:42,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-10-16 11:56:42,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 224. [2022-10-16 11:56:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 200 states have (on average 1.545) internal successors, (309), 223 states have internal predecessors, (309), 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 11:56:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 309 transitions. [2022-10-16 11:56:42,954 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 309 transitions. Word has length 32 [2022-10-16 11:56:42,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:42,954 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 309 transitions. [2022-10-16 11:56:42,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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 11:56:42,955 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 309 transitions. [2022-10-16 11:56:42,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 11:56:42,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:42,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:42,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 11:56:42,956 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:42,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:42,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2114939687, now seen corresponding path program 1 times [2022-10-16 11:56:42,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:42,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191407183] [2022-10-16 11:56:42,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:42,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:43,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:43,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:43,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191407183] [2022-10-16 11:56:43,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191407183] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:56:43,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230283096] [2022-10-16 11:56:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:43,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:43,114 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 11:56:43,134 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 11:56:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:43,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:56:43,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:56:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:43,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:56:43,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230283096] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:43,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:56:43,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-10-16 11:56:43,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122792134] [2022-10-16 11:56:43,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:43,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:56:43,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:43,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:56:43,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:56:43,302 INFO L87 Difference]: Start difference. First operand 224 states and 309 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 11:56:43,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:43,471 INFO L93 Difference]: Finished difference Result 346 states and 456 transitions. [2022-10-16 11:56:43,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:56:43,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 11:56:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:43,474 INFO L225 Difference]: With dead ends: 346 [2022-10-16 11:56:43,474 INFO L226 Difference]: Without dead ends: 343 [2022-10-16 11:56:43,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:56:43,475 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 155 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:43,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 846 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:56:43,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-10-16 11:56:43,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 227. [2022-10-16 11:56:43,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 204 states have (on average 1.5343137254901962) internal successors, (313), 226 states have internal predecessors, (313), 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 11:56:43,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 313 transitions. [2022-10-16 11:56:43,490 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 313 transitions. Word has length 32 [2022-10-16 11:56:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:43,490 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 313 transitions. [2022-10-16 11:56:43,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 11:56:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 313 transitions. [2022-10-16 11:56:43,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:56:43,491 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:43,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:43,524 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 11:56:43,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:56:43,705 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:43,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:43,706 INFO L85 PathProgramCache]: Analyzing trace with hash 654766277, now seen corresponding path program 1 times [2022-10-16 11:56:43,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:43,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575126726] [2022-10-16 11:56:43,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:43,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:43,895 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 11:56:43,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:43,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575126726] [2022-10-16 11:56:43,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575126726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:43,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:43,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:56:43,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724912515] [2022-10-16 11:56:43,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:43,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 11:56:43,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 11:56:43,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:56:43,898 INFO L87 Difference]: Start difference. First operand 227 states and 313 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 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 11:56:44,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:44,031 INFO L93 Difference]: Finished difference Result 232 states and 318 transitions. [2022-10-16 11:56:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:56:44,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 11:56:44,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:44,033 INFO L225 Difference]: With dead ends: 232 [2022-10-16 11:56:44,033 INFO L226 Difference]: Without dead ends: 231 [2022-10-16 11:56:44,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:56:44,034 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 19 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:44,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 276 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:56:44,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-10-16 11:56:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-10-16 11:56:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 208 states have (on average 1.5240384615384615) internal successors, (317), 230 states have internal predecessors, (317), 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 11:56:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 317 transitions. [2022-10-16 11:56:44,049 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 317 transitions. Word has length 33 [2022-10-16 11:56:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:44,049 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 317 transitions. [2022-10-16 11:56:44,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 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 11:56:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 317 transitions. [2022-10-16 11:56:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:56:44,050 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:44,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:44,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 11:56:44,051 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:44,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1138620643, now seen corresponding path program 1 times [2022-10-16 11:56:44,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:44,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824821744] [2022-10-16 11:56:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:44,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:44,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:44,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824821744] [2022-10-16 11:56:44,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824821744] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:56:44,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402727080] [2022-10-16 11:56:44,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:44,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:44,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:44,215 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 11:56:44,239 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 11:56:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:44,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:56:44,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:56:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:44,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:56:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:44,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402727080] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:56:44,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:56:44,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2022-10-16 11:56:44,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343522674] [2022-10-16 11:56:44,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:56:44,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:56:44,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:44,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:56:44,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:56:44,498 INFO L87 Difference]: Start difference. First operand 231 states and 317 transitions. Second operand has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 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 11:56:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:45,031 INFO L93 Difference]: Finished difference Result 293 states and 372 transitions. [2022-10-16 11:56:45,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:56:45,031 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 11:56:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:45,033 INFO L225 Difference]: With dead ends: 293 [2022-10-16 11:56:45,033 INFO L226 Difference]: Without dead ends: 291 [2022-10-16 11:56:45,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:56:45,034 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 245 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:45,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 972 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:56:45,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-10-16 11:56:45,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 253. [2022-10-16 11:56:45,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 230 states have (on average 1.491304347826087) internal successors, (343), 252 states have internal predecessors, (343), 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 11:56:45,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 343 transitions. [2022-10-16 11:56:45,050 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 343 transitions. Word has length 33 [2022-10-16 11:56:45,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:45,050 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 343 transitions. [2022-10-16 11:56:45,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 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 11:56:45,050 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 343 transitions. [2022-10-16 11:56:45,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:56:45,051 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:45,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:45,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:56:45,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 11:56:45,266 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:45,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:45,267 INFO L85 PathProgramCache]: Analyzing trace with hash 770923630, now seen corresponding path program 1 times [2022-10-16 11:56:45,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:45,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527703164] [2022-10-16 11:56:45,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:45,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:46,183 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 11:56:46,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:46,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527703164] [2022-10-16 11:56:46,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527703164] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:46,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:46,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:56:46,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871586058] [2022-10-16 11:56:46,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:46,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:56:46,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:46,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:56:46,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:56:46,187 INFO L87 Difference]: Start difference. First operand 253 states and 343 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 11:56:46,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:46,337 INFO L93 Difference]: Finished difference Result 278 states and 379 transitions. [2022-10-16 11:56:46,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:56:46,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 11:56:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:46,339 INFO L225 Difference]: With dead ends: 278 [2022-10-16 11:56:46,340 INFO L226 Difference]: Without dead ends: 277 [2022-10-16 11:56:46,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:56:46,341 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 6 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:46,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 275 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:56:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-10-16 11:56:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 262. [2022-10-16 11:56:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 239 states have (on average 1.497907949790795) internal successors, (358), 261 states have internal predecessors, (358), 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 11:56:46,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 358 transitions. [2022-10-16 11:56:46,359 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 358 transitions. Word has length 33 [2022-10-16 11:56:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:46,360 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 358 transitions. [2022-10-16 11:56:46,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 11:56:46,360 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 358 transitions. [2022-10-16 11:56:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:56:46,361 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:46,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:46,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 11:56:46,361 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:46,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:46,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1871170977, now seen corresponding path program 1 times [2022-10-16 11:56:46,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:46,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18201338] [2022-10-16 11:56:46,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:46,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:46,438 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 11:56:46,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:46,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18201338] [2022-10-16 11:56:46,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18201338] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:46,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:46,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:56:46,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978108581] [2022-10-16 11:56:46,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:46,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:56:46,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:46,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:56:46,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:46,440 INFO L87 Difference]: Start difference. First operand 262 states and 358 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 11:56:46,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:46,514 INFO L93 Difference]: Finished difference Result 262 states and 358 transitions. [2022-10-16 11:56:46,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:56:46,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 11:56:46,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:46,516 INFO L225 Difference]: With dead ends: 262 [2022-10-16 11:56:46,516 INFO L226 Difference]: Without dead ends: 260 [2022-10-16 11:56:46,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:46,517 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 9 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:46,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 196 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:56:46,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-10-16 11:56:46,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2022-10-16 11:56:46,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 239 states have (on average 1.4728033472803348) internal successors, (352), 259 states have internal predecessors, (352), 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 11:56:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 352 transitions. [2022-10-16 11:56:46,536 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 352 transitions. Word has length 34 [2022-10-16 11:56:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:46,536 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 352 transitions. [2022-10-16 11:56:46,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 11:56:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 352 transitions. [2022-10-16 11:56:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:56:46,537 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:46,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:46,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 11:56:46,538 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2121771764, now seen corresponding path program 1 times [2022-10-16 11:56:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:46,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387503978] [2022-10-16 11:56:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:46,647 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 11:56:46,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:46,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387503978] [2022-10-16 11:56:46,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387503978] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:56:46,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:56:46,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:56:46,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698980012] [2022-10-16 11:56:46,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:56:46,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:56:46,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:56:46,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:56:46,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:56:46,650 INFO L87 Difference]: Start difference. First operand 260 states and 352 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 11:56:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:56:46,696 INFO L93 Difference]: Finished difference Result 366 states and 509 transitions. [2022-10-16 11:56:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:56:46,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 11:56:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:56:46,698 INFO L225 Difference]: With dead ends: 366 [2022-10-16 11:56:46,698 INFO L226 Difference]: Without dead ends: 266 [2022-10-16 11:56:46,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:56:46,700 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 5 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:56:46,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 233 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:56:46,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-10-16 11:56:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2022-10-16 11:56:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 239 states have (on average 1.4602510460251046) internal successors, (349), 259 states have internal predecessors, (349), 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 11:56:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 349 transitions. [2022-10-16 11:56:46,717 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 349 transitions. Word has length 35 [2022-10-16 11:56:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:56:46,717 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 349 transitions. [2022-10-16 11:56:46,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 11:56:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 349 transitions. [2022-10-16 11:56:46,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 11:56:46,718 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:56:46,718 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:56:46,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 11:56:46,719 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 11:56:46,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:56:46,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1401709754, now seen corresponding path program 1 times [2022-10-16 11:56:46,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:56:46,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679154329] [2022-10-16 11:56:46,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:46,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:56:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:56:47,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:56:47,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679154329] [2022-10-16 11:56:47,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679154329] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:56:47,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956724396] [2022-10-16 11:56:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:56:47,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:56:47,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:56:47,822 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 11:56:47,844 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 11:56:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:56:48,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 11:56:48,775 INFO L286 TraceCheckSpWp]: Computing forward predicates...