/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/reducercommutativity/avg10-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:50:06,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:50:06,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:50:06,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:50:06,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:50:06,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:50:06,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:50:06,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:50:06,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:50:06,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:50:06,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:50:06,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:50:06,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:50:06,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:50:06,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:50:06,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:50:06,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:50:06,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:50:06,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:50:06,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:50:06,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:50:06,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:50:06,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:50:06,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:50:06,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:50:06,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:50:06,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:50:06,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:50:06,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:50:06,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:50:06,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:50:06,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:50:06,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:50:06,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:50:06,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:50:06,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:50:06,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:50:06,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:50:06,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:50:06,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:50:06,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:50:06,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:50:07,018 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:50:07,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:50:07,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:50:07,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:50:07,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:50:07,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:50:07,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:50:07,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:50:07,022 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:50:07,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:50:07,022 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:50:07,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:50:07,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:50:07,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:50:07,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:50:07,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:50:07,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:50:07,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:50:07,024 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:50:07,024 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:50:07,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:50:07,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:50:07,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:50:07,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:50:07,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:50:07,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:50:07,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:50:07,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:50:07,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:50:07,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:50:07,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:50:07,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:50:07,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:50:07,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:50:07,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:50:07,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:50:07,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:50:07,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:50:07,518 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:50:07,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/avg10-2.i [2022-10-15 21:50:07,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1080dd0/ebcdc085e14843efa2a045b0b1311a52/FLAG7b761fd91 [2022-10-15 21:50:08,239 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:50:08,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg10-2.i [2022-10-15 21:50:08,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1080dd0/ebcdc085e14843efa2a045b0b1311a52/FLAG7b761fd91 [2022-10-15 21:50:08,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1080dd0/ebcdc085e14843efa2a045b0b1311a52 [2022-10-15 21:50:08,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:50:08,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:50:08,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:50:08,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:50:08,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:50:08,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b65b55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08, skipping insertion in model container [2022-10-15 21:50:08,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:50:08,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:50:08,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg10-2.i[1282,1295] [2022-10-15 21:50:08,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:50:08,841 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:50:08,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg10-2.i[1282,1295] [2022-10-15 21:50:08,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:50:08,885 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:50:08,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08 WrapperNode [2022-10-15 21:50:08,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:50:08,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:50:08,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:50:08,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:50:08,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,932 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-10-15 21:50:08,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:50:08,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:50:08,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:50:08,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:50:08,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:50:08,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:50:08,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:50:08,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:50:08,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (1/1) ... [2022-10-15 21:50:08,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:50:08,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:50:09,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:50:09,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:50:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:50:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:50:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:50:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:50:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2022-10-15 21:50:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2022-10-15 21:50:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:50:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:50:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:50:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:50:09,184 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:50:09,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:50:09,473 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:50:09,492 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:50:09,492 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:50:09,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:50:09 BoogieIcfgContainer [2022-10-15 21:50:09,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:50:09,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:50:09,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:50:09,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:50:09,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:50:08" (1/3) ... [2022-10-15 21:50:09,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534002f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:50:09, skipping insertion in model container [2022-10-15 21:50:09,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:50:08" (2/3) ... [2022-10-15 21:50:09,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534002f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:50:09, skipping insertion in model container [2022-10-15 21:50:09,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:50:09" (3/3) ... [2022-10-15 21:50:09,512 INFO L112 eAbstractionObserver]: Analyzing ICFG avg10-2.i [2022-10-15 21:50:09,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:50:09,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-15 21:50:09,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:50:09,616 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;@6b685bcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:50:09,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-15 21:50:09,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 21:50:09,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 21:50:09,674 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:09,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 21:50:09,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:09,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 54464963, now seen corresponding path program 1 times [2022-10-15 21:50:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:09,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590076085] [2022-10-15 21:50:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:09,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:10,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:10,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:10,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590076085] [2022-10-15 21:50:10,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590076085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:50:10,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:50:10,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:50:10,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538092257] [2022-10-15 21:50:10,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:50:10,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:50:10,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:50:10,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:50:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:50:10,055 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:50:10,163 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2022-10-15 21:50:10,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:50:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 21:50:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:50:10,178 INFO L225 Difference]: With dead ends: 92 [2022-10-15 21:50:10,179 INFO L226 Difference]: Without dead ends: 45 [2022-10-15 21:50:10,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:50:10,194 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:50:10,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:50:10,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-15 21:50:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-15 21:50:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 41 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:50:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-15 21:50:10,264 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 5 [2022-10-15 21:50:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:50:10,264 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-15 21:50:10,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-15 21:50:10,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:50:10,267 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:10,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 21:50:10,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:50:10,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:10,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1177332607, now seen corresponding path program 1 times [2022-10-15 21:50:10,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:10,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727983818] [2022-10-15 21:50:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:10,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:50:10,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:10,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727983818] [2022-10-15 21:50:10,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727983818] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:50:10,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:50:10,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:50:10,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575689762] [2022-10-15 21:50:10,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:50:10,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:50:10,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:50:10,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:50:10,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:50:10,455 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:10,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:50:10,515 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-10-15 21:50:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:50:10,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 21:50:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:50:10,519 INFO L225 Difference]: With dead ends: 45 [2022-10-15 21:50:10,519 INFO L226 Difference]: Without dead ends: 44 [2022-10-15 21:50:10,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:50:10,523 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 5 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:50:10,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 114 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:50:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-15 21:50:10,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-15 21:50:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 40 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:50:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-10-15 21:50:10,537 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 9 [2022-10-15 21:50:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:50:10,537 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-10-15 21:50:10,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-10-15 21:50:10,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 21:50:10,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:10,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:50:10,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:50:10,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting avgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:10,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:10,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1839721591, now seen corresponding path program 1 times [2022-10-15 21:50:10,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:10,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903190285] [2022-10-15 21:50:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:10,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:10,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:10,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903190285] [2022-10-15 21:50:10,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903190285] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:50:10,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977922280] [2022-10-15 21:50:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:10,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:50:10,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:50:10,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:50:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:10,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:50:10,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:50:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:50:10,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:50:10,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977922280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:50:10,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:50:10,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 21:50:10,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324233290] [2022-10-15 21:50:10,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:50:10,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:50:10,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:50:10,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:50:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:50:10,751 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:50:10,778 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2022-10-15 21:50:10,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:50:10,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 21:50:10,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:50:10,780 INFO L225 Difference]: With dead ends: 86 [2022-10-15 21:50:10,781 INFO L226 Difference]: Without dead ends: 54 [2022-10-15 21:50:10,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:50:10,784 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:50:10,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 81 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:50:10,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-15 21:50:10,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2022-10-15 21:50:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 41 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:50:10,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-15 21:50:10,797 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 11 [2022-10-15 21:50:10,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:50:10,798 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-15 21:50:10,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-15 21:50:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 21:50:10,799 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:10,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:50:10,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:50:11,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:11,014 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:11,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1839721640, now seen corresponding path program 1 times [2022-10-15 21:50:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:11,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328813086] [2022-10-15 21:50:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:11,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:11,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328813086] [2022-10-15 21:50:11,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328813086] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:50:11,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719874392] [2022-10-15 21:50:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:11,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:11,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:50:11,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:50:11,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:50:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:11,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:50:11,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:50:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:11,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:50:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:11,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719874392] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:50:11,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:50:11,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 21:50:11,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892526020] [2022-10-15 21:50:11,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:50:11,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 21:50:11,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:50:11,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 21:50:11,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:50:11,304 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:11,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:50:11,438 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2022-10-15 21:50:11,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:50:11,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 21:50:11,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:50:11,444 INFO L225 Difference]: With dead ends: 85 [2022-10-15 21:50:11,444 INFO L226 Difference]: Without dead ends: 51 [2022-10-15 21:50:11,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:50:11,451 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 13 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:50:11,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:50:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-15 21:50:11,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-10-15 21:50:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:50:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-10-15 21:50:11,476 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 11 [2022-10-15 21:50:11,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:50:11,477 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-10-15 21:50:11,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:11,478 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-10-15 21:50:11,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 21:50:11,478 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:11,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 21:50:11,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:50:11,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 21:50:11,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:11,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:11,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2137572522, now seen corresponding path program 1 times [2022-10-15 21:50:11,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:11,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304705438] [2022-10-15 21:50:11,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:11,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:11,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:11,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304705438] [2022-10-15 21:50:11,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304705438] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:50:11,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147652486] [2022-10-15 21:50:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:11,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:11,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:50:11,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:50:11,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:50:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:11,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:50:11,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:50:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:11,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:50:11,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147652486] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:50:11,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:50:11,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 21:50:11,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601840361] [2022-10-15 21:50:11,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:50:11,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:50:11,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:50:11,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:50:11,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:50:11,954 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:50:12,032 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2022-10-15 21:50:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:50:12,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 21:50:12,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:50:12,034 INFO L225 Difference]: With dead ends: 50 [2022-10-15 21:50:12,035 INFO L226 Difference]: Without dead ends: 49 [2022-10-15 21:50:12,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:50:12,037 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:50:12,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 133 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:50:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-15 21:50:12,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-10-15 21:50:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 45 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:50:12,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2022-10-15 21:50:12,047 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 10 [2022-10-15 21:50:12,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:50:12,048 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2022-10-15 21:50:12,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2022-10-15 21:50:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 21:50:12,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:12,049 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:50:12,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:50:12,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:12,264 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:12,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1027086304, now seen corresponding path program 2 times [2022-10-15 21:50:12,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:12,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067478678] [2022-10-15 21:50:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:12,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:12,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:12,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067478678] [2022-10-15 21:50:12,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067478678] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:50:12,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396223541] [2022-10-15 21:50:12,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:50:12,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:12,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:50:12,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:50:12,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:50:12,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:50:12,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:50:12,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 21:50:12,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:50:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:12,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:50:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:12,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396223541] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:50:12,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:50:12,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-15 21:50:12,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062249437] [2022-10-15 21:50:12,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:50:12,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 21:50:12,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:50:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 21:50:12,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-15 21:50:12,696 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:12,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:50:12,849 INFO L93 Difference]: Finished difference Result 99 states and 110 transitions. [2022-10-15 21:50:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 21:50:12,850 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 21:50:12,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:50:12,852 INFO L225 Difference]: With dead ends: 99 [2022-10-15 21:50:12,852 INFO L226 Difference]: Without dead ends: 65 [2022-10-15 21:50:12,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-15 21:50:12,854 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 29 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:50:12,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 264 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:50:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-15 21:50:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-10-15 21:50:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 61 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:50:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2022-10-15 21:50:12,867 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 19 [2022-10-15 21:50:12,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:50:12,867 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2022-10-15 21:50:12,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2022-10-15 21:50:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-15 21:50:12,869 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:12,869 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:50:12,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:50:13,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:13,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:13,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1254426864, now seen corresponding path program 3 times [2022-10-15 21:50:13,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:13,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390007692] [2022-10-15 21:50:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:13,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:13,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:13,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390007692] [2022-10-15 21:50:13,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390007692] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:50:13,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063740542] [2022-10-15 21:50:13,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:50:13,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:13,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:50:13,562 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) [2022-10-15 21:50:13,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:50:13,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-15 21:50:13,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:50:13,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 21:50:13,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:50:13,803 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:13,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:50:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:14,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063740542] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:50:14,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:50:14,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-10-15 21:50:14,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652979250] [2022-10-15 21:50:14,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:50:14,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-15 21:50:14,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:50:14,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-15 21:50:14,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-10-15 21:50:14,018 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:50:14,219 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2022-10-15 21:50:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-15 21:50:14,220 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-15 21:50:14,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:50:14,221 INFO L225 Difference]: With dead ends: 111 [2022-10-15 21:50:14,221 INFO L226 Difference]: Without dead ends: 77 [2022-10-15 21:50:14,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 53 SyntacticMatches, 11 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=694, Unknown=0, NotChecked=0, Total=992 [2022-10-15 21:50:14,224 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 40 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:50:14,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 338 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:50:14,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-15 21:50:14,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-10-15 21:50:14,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 73 states have internal predecessors, (76), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:50:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2022-10-15 21:50:14,235 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 35 [2022-10-15 21:50:14,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:50:14,235 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2022-10-15 21:50:14,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:50:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2022-10-15 21:50:14,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 21:50:14,237 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:50:14,238 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:50:14,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:50:14,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:14,454 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 21:50:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:50:14,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1993967804, now seen corresponding path program 4 times [2022-10-15 21:50:14,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:50:14,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416434850] [2022-10-15 21:50:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:50:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:50:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:50:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 112 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:17,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:50:17,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416434850] [2022-10-15 21:50:17,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416434850] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:50:17,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318397902] [2022-10-15 21:50:17,347 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 21:50:17,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:50:17,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:50:17,349 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) [2022-10-15 21:50:17,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:50:17,446 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 21:50:17,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:50:17,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 57 conjunts are in the unsatisfiable core [2022-10-15 21:50:17,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:50:17,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-15 21:50:17,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:17,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:17,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:17,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:17,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:17,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:17,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:17,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:18,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:50:18,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:50:18,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-15 21:50:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 136 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:50:18,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:50:20,339 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_22| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post3#1| 1) |v_ULTIMATE.start_main_~i~1#1_22|)) (forall ((v_ArrVal_150 Int)) (< (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~1#1_22| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_150) |c_ULTIMATE.start_main_~#x~0#1.offset|) 9223372036854775808)))) is different from false [2022-10-15 21:51:19,731 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_24| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post3#1| 1) |v_ULTIMATE.start_main_~i~1#1_24|)) (forall ((v_ArrVal_148 Int) (v_ArrVal_145 Int) (v_ArrVal_150 Int) (|v_ULTIMATE.start_main_~i~1#1_23| Int) (|v_ULTIMATE.start_main_~i~1#1_22| Int)) (or (< (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_24| 4)) v_ArrVal_145) (+ (* |v_ULTIMATE.start_main_~i~1#1_23| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_148) (+ (* |v_ULTIMATE.start_main_~i~1#1_22| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_150) |c_ULTIMATE.start_main_~#x~0#1.offset|) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~1#1_22| (+ |v_ULTIMATE.start_main_~i~1#1_23| 1)) (< |v_ULTIMATE.start_main_~i~1#1_23| (+ |v_ULTIMATE.start_main_~i~1#1_24| 1)))))) is different from false