./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/sum01_bug02.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:27:10,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:27:10,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:27:11,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:27:11,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:27:11,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:27:11,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:27:11,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:27:11,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:27:11,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:27:11,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:27:11,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:27:11,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:27:11,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:27:11,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:27:11,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:27:11,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:27:11,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:27:11,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:27:11,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:27:11,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:27:11,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:27:11,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:27:11,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:27:11,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:27:11,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:27:11,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:27:11,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:27:11,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:27:11,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:27:11,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:27:11,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:27:11,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:27:11,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:27:11,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:27:11,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:27:11,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:27:11,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:27:11,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:27:11,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:27:11,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:27:11,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 08:27:11,068 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:27:11,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:27:11,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:27:11,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:27:11,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 08:27:11,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 08:27:11,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:27:11,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:27:11,071 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:27:11,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:27:11,072 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 08:27:11,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 08:27:11,073 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 08:27:11,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:27:11,074 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:27:11,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 08:27:11,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:27:11,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:27:11,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 08:27:11,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:27:11,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:27:11,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 08:27:11,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 08:27:11,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:27:11,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 08:27:11,076 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 08:27:11,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 08:27:11,076 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 08:27:11,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 08:27:11,076 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 08:27:11,076 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e [2023-02-18 08:27:11,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:27:11,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:27:11,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:27:11,261 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:27:11,265 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:27:11,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum01_bug02.i [2023-02-18 08:27:12,205 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:27:12,386 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:27:12,387 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i [2023-02-18 08:27:12,390 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ee25bca7/440283f7275c4b89aa55d497f1f3bd38/FLAG7eef809af [2023-02-18 08:27:12,402 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ee25bca7/440283f7275c4b89aa55d497f1f3bd38 [2023-02-18 08:27:12,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:27:12,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:27:12,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:27:12,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:27:12,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:27:12,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1040a0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12, skipping insertion in model container [2023-02-18 08:27:12,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:27:12,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:27:12,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i[812,825] [2023-02-18 08:27:12,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:27:12,519 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:27:12,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i[812,825] [2023-02-18 08:27:12,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:27:12,536 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:27:12,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12 WrapperNode [2023-02-18 08:27:12,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:27:12,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:27:12,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:27:12,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:27:12,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,557 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2023-02-18 08:27:12,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:27:12,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:27:12,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:27:12,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:27:12,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,568 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:27:12,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:27:12,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:27:12,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:27:12,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (1/1) ... [2023-02-18 08:27:12,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:27:12,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:12,599 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) [2023-02-18 08:27:12,604 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 [2023-02-18 08:27:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 08:27:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 08:27:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:27:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:27:12,663 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:27:12,664 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:27:12,748 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:27:12,751 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:27:12,751 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:27:12,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:27:12 BoogieIcfgContainer [2023-02-18 08:27:12,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:27:12,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 08:27:12,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 08:27:12,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 08:27:12,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:27:12" (1/3) ... [2023-02-18 08:27:12,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668c9791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:27:12, skipping insertion in model container [2023-02-18 08:27:12,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:27:12" (2/3) ... [2023-02-18 08:27:12,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668c9791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:27:12, skipping insertion in model container [2023-02-18 08:27:12,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:27:12" (3/3) ... [2023-02-18 08:27:12,758 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i [2023-02-18 08:27:12,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 08:27:12,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-18 08:27:12,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 08:27:12,799 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=PETRI_NET, 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;@72f2c0d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 08:27:12,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-18 08:27:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.65) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:12,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 08:27:12,805 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:12,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 08:27:12,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:12,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:12,809 INFO L85 PathProgramCache]: Analyzing trace with hash 28696678, now seen corresponding path program 1 times [2023-02-18 08:27:12,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:12,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270328259] [2023-02-18 08:27:12,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:12,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:12,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270328259] [2023-02-18 08:27:12,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270328259] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:12,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:12,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:27:12,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954929904] [2023-02-18 08:27:12,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:12,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 08:27:12,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:12,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 08:27:12,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 08:27:12,920 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.65) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-02-18 08:27:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:12,930 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-02-18 08:27:12,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 08:27:12,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2023-02-18 08:27:12,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:12,935 INFO L225 Difference]: With dead ends: 39 [2023-02-18 08:27:12,935 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 08:27:12,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 08:27:12,943 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:12,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:12,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 08:27:12,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-18 08:27:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-18 08:27:12,962 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2023-02-18 08:27:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:12,962 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-18 08:27:12,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-02-18 08:27:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-18 08:27:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 08:27:12,963 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:12,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 08:27:12,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 08:27:12,964 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:12,964 INFO L85 PathProgramCache]: Analyzing trace with hash 28695903, now seen corresponding path program 1 times [2023-02-18 08:27:12,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:12,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430427948] [2023-02-18 08:27:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:12,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430427948] [2023-02-18 08:27:13,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430427948] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:13,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:13,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:27:13,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414468858] [2023-02-18 08:27:13,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:27:13,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:27:13,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:27:13,041 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-02-18 08:27:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,054 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-18 08:27:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:27:13,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-02-18 08:27:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,055 INFO L225 Difference]: With dead ends: 23 [2023-02-18 08:27:13,068 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 08:27:13,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:27:13,070 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:13,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 08:27:13,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-18 08:27:13,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-18 08:27:13,073 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 5 [2023-02-18 08:27:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,073 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-18 08:27:13,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-02-18 08:27:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-18 08:27:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 08:27:13,074 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 08:27:13,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:13,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:13,075 INFO L85 PathProgramCache]: Analyzing trace with hash 889573066, now seen corresponding path program 1 times [2023-02-18 08:27:13,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:13,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489140957] [2023-02-18 08:27:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489140957] [2023-02-18 08:27:13,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489140957] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:13,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:13,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:27:13,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326444966] [2023-02-18 08:27:13,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:27:13,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:27:13,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:27:13,145 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-02-18 08:27:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,207 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2023-02-18 08:27:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:27:13,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2023-02-18 08:27:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,208 INFO L225 Difference]: With dead ends: 41 [2023-02-18 08:27:13,208 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 08:27:13,208 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 [2023-02-18 08:27:13,209 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:13,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 08:27:13,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2023-02-18 08:27:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.5) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-18 08:27:13,213 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 6 [2023-02-18 08:27:13,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,214 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-18 08:27:13,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-02-18 08:27:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-18 08:27:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 08:27:13,214 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 08:27:13,215 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:13,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash 889574252, now seen corresponding path program 1 times [2023-02-18 08:27:13,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:13,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982419076] [2023-02-18 08:27:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982419076] [2023-02-18 08:27:13,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982419076] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:13,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:13,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:27:13,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418791639] [2023-02-18 08:27:13,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:27:13,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:27:13,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:27:13,268 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-18 08:27:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,279 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2023-02-18 08:27:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:27:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-02-18 08:27:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,280 INFO L225 Difference]: With dead ends: 42 [2023-02-18 08:27:13,280 INFO L226 Difference]: Without dead ends: 40 [2023-02-18 08:27:13,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:27:13,282 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:13,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 38 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-18 08:27:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2023-02-18 08:27:13,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 32 states have internal predecessors, (40), 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) [2023-02-18 08:27:13,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-02-18 08:27:13,289 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 6 [2023-02-18 08:27:13,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,290 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-18 08:27:13,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-18 08:27:13,290 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-02-18 08:27:13,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 08:27:13,291 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 08:27:13,292 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:13,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1807004046, now seen corresponding path program 1 times [2023-02-18 08:27:13,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:13,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970586628] [2023-02-18 08:27:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970586628] [2023-02-18 08:27:13,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970586628] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:13,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:13,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 08:27:13,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739459515] [2023-02-18 08:27:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:27:13,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:27:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:27:13,337 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,349 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2023-02-18 08:27:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:27:13,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 08:27:13,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,350 INFO L225 Difference]: With dead ends: 60 [2023-02-18 08:27:13,350 INFO L226 Difference]: Without dead ends: 31 [2023-02-18 08:27:13,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:27:13,351 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:13,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 37 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-18 08:27:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-02-18 08:27:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-02-18 08:27:13,355 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 7 [2023-02-18 08:27:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,355 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-02-18 08:27:13,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,356 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-02-18 08:27:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 08:27:13,356 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 08:27:13,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:13,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1358376778, now seen corresponding path program 1 times [2023-02-18 08:27:13,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:13,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658856535] [2023-02-18 08:27:13,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658856535] [2023-02-18 08:27:13,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658856535] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:13,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:13,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:27:13,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557269429] [2023-02-18 08:27:13,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:27:13,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:27:13,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:27:13,389 INFO L87 Difference]: Start difference. First operand 26 states and 27 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) [2023-02-18 08:27:13,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,420 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-02-18 08:27:13,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 08:27:13,420 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 [2023-02-18 08:27:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,421 INFO L225 Difference]: With dead ends: 31 [2023-02-18 08:27:13,421 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 08:27:13,421 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 [2023-02-18 08:27:13,422 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:13,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 51 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 08:27:13,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-02-18 08:27:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.380952380952381) internal successors, (29), 27 states have internal predecessors, (29), 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) [2023-02-18 08:27:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-18 08:27:13,426 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 9 [2023-02-18 08:27:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,426 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-18 08:27:13,426 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) [2023-02-18 08:27:13,426 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-18 08:27:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 08:27:13,427 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 08:27:13,427 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:13,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -839992782, now seen corresponding path program 1 times [2023-02-18 08:27:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:13,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363287276] [2023-02-18 08:27:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363287276] [2023-02-18 08:27:13,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363287276] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:13,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:13,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:27:13,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462176635] [2023-02-18 08:27:13,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:27:13,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:27:13,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:27:13,458 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2023-02-18 08:27:13,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,468 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-02-18 08:27:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:27:13,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 [2023-02-18 08:27:13,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,469 INFO L225 Difference]: With dead ends: 28 [2023-02-18 08:27:13,469 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 08:27:13,469 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 [2023-02-18 08:27:13,470 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 32 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 [2023-02-18 08:27:13,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 32 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 08:27:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-18 08:27:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-02-18 08:27:13,489 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 10 [2023-02-18 08:27:13,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,489 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-02-18 08:27:13,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-02-18 08:27:13,490 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-02-18 08:27:13,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 08:27:13,490 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 08:27:13,490 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:13,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:13,491 INFO L85 PathProgramCache]: Analyzing trace with hash 220790132, now seen corresponding path program 1 times [2023-02-18 08:27:13,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:13,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731138129] [2023-02-18 08:27:13,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731138129] [2023-02-18 08:27:13,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731138129] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:13,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:27:13,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:27:13,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259006088] [2023-02-18 08:27:13,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:27:13,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:27:13,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:27:13,572 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,605 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2023-02-18 08:27:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:27:13,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 08:27:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,606 INFO L225 Difference]: With dead ends: 33 [2023-02-18 08:27:13,608 INFO L226 Difference]: Without dead ends: 31 [2023-02-18 08:27:13,608 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 [2023-02-18 08:27:13,609 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:13,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-18 08:27:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-18 08:27:13,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2023-02-18 08:27:13,615 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 12 [2023-02-18 08:27:13,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,615 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-02-18 08:27:13,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2023-02-18 08:27:13,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 08:27:13,617 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-18 08:27:13,618 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:13,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:13,622 INFO L85 PathProgramCache]: Analyzing trace with hash 753126975, now seen corresponding path program 1 times [2023-02-18 08:27:13,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:13,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388386853] [2023-02-18 08:27:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:13,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388386853] [2023-02-18 08:27:13,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388386853] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:13,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058501113] [2023-02-18 08:27:13,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:13,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:13,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:13,666 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) [2023-02-18 08:27:13,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 08:27:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:13,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:27:13,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:13,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:13,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058501113] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:13,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:13,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-18 08:27:13,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098038159] [2023-02-18 08:27:13,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:13,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 08:27:13,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:13,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 08:27:13,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-18 08:27:13,772 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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) [2023-02-18 08:27:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:13,841 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2023-02-18 08:27:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 08:27:13,842 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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 16 [2023-02-18 08:27:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:13,842 INFO L225 Difference]: With dead ends: 48 [2023-02-18 08:27:13,842 INFO L226 Difference]: Without dead ends: 43 [2023-02-18 08:27:13,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-02-18 08:27:13,843 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 108 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:13,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 54 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-18 08:27:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2023-02-18 08:27:13,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 27 states have internal predecessors, (29), 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) [2023-02-18 08:27:13,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-18 08:27:13,846 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 16 [2023-02-18 08:27:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:13,846 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-18 08:27:13,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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) [2023-02-18 08:27:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-18 08:27:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 08:27:13,848 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:13,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:13,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:14,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:14,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:14,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:14,056 INFO L85 PathProgramCache]: Analyzing trace with hash 753128161, now seen corresponding path program 1 times [2023-02-18 08:27:14,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:14,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159277135] [2023-02-18 08:27:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:14,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:14,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159277135] [2023-02-18 08:27:14,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159277135] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:14,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163176934] [2023-02-18 08:27:14,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:14,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:14,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:14,114 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) [2023-02-18 08:27:14,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 08:27:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:14,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 08:27:14,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 08:27:14,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163176934] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:14,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 08:27:14,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-02-18 08:27:14,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200195074] [2023-02-18 08:27:14,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:14,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:27:14,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:14,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:27:14,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:27:14,147 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-02-18 08:27:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:14,154 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-02-18 08:27:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:27:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-02-18 08:27:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:14,155 INFO L225 Difference]: With dead ends: 28 [2023-02-18 08:27:14,155 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 08:27:14,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:27:14,156 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:14,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 08:27:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-18 08:27:14,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-02-18 08:27:14,164 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2023-02-18 08:27:14,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:14,164 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-02-18 08:27:14,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-02-18 08:27:14,164 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-02-18 08:27:14,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 08:27:14,165 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:14,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:14,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 08:27:14,369 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,SelfDestructingSolverStorable9 [2023-02-18 08:27:14,369 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:14,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:14,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1872136563, now seen corresponding path program 1 times [2023-02-18 08:27:14,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:14,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046651464] [2023-02-18 08:27:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:14,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046651464] [2023-02-18 08:27:14,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046651464] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:14,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117407360] [2023-02-18 08:27:14,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:14,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:14,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:14,408 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) [2023-02-18 08:27:14,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 08:27:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:14,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 08:27:14,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117407360] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:14,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:14,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-02-18 08:27:14,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950418555] [2023-02-18 08:27:14,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:14,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 08:27:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:14,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 08:27:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-18 08:27:14,482 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2023-02-18 08:27:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:14,515 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2023-02-18 08:27:14,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 08:27:14,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 17 [2023-02-18 08:27:14,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:14,516 INFO L225 Difference]: With dead ends: 67 [2023-02-18 08:27:14,516 INFO L226 Difference]: Without dead ends: 66 [2023-02-18 08:27:14,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-18 08:27:14,517 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:14,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 67 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:14,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-18 08:27:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2023-02-18 08:27:14,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.320754716981132) internal successors, (70), 56 states have internal predecessors, (70), 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) [2023-02-18 08:27:14,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2023-02-18 08:27:14,528 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 17 [2023-02-18 08:27:14,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:14,528 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2023-02-18 08:27:14,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2023-02-18 08:27:14,529 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2023-02-18 08:27:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 08:27:14,529 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:14,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:14,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-18 08:27:14,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:14,734 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:14,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:14,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1872142521, now seen corresponding path program 1 times [2023-02-18 08:27:14,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:14,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285585851] [2023-02-18 08:27:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:14,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:14,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285585851] [2023-02-18 08:27:14,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285585851] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:14,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060523520] [2023-02-18 08:27:14,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:14,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:14,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:14,799 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) [2023-02-18 08:27:14,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 08:27:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:14,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 08:27:14,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:14,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060523520] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:14,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:14,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 17 [2023-02-18 08:27:14,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052740080] [2023-02-18 08:27:14,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:14,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 08:27:14,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:14,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 08:27:14,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-02-18 08:27:14,924 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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) [2023-02-18 08:27:15,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:15,019 INFO L93 Difference]: Finished difference Result 105 states and 126 transitions. [2023-02-18 08:27:15,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 08:27:15,019 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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 17 [2023-02-18 08:27:15,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:15,019 INFO L225 Difference]: With dead ends: 105 [2023-02-18 08:27:15,019 INFO L226 Difference]: Without dead ends: 61 [2023-02-18 08:27:15,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-02-18 08:27:15,020 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 76 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:15,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 58 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:27:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-18 08:27:15,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2023-02-18 08:27:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 50 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:15,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2023-02-18 08:27:15,023 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 17 [2023-02-18 08:27:15,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:15,023 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2023-02-18 08:27:15,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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) [2023-02-18 08:27:15,024 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-02-18 08:27:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 08:27:15,024 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:15,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:27:15,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:15,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:15,225 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:15,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:15,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1837420841, now seen corresponding path program 1 times [2023-02-18 08:27:15,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:15,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94071521] [2023-02-18 08:27:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:15,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:15,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:15,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94071521] [2023-02-18 08:27:15,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94071521] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:15,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030607947] [2023-02-18 08:27:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:15,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:15,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:15,256 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) [2023-02-18 08:27:15,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 08:27:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:15,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:27:15,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:15,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 08:27:15,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030607947] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:15,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 08:27:15,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-18 08:27:15,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28368216] [2023-02-18 08:27:15,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:15,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 08:27:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:15,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 08:27:15,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 08:27:15,341 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2023-02-18 08:27:15,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:15,364 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2023-02-18 08:27:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 08:27:15,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2023-02-18 08:27:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:15,365 INFO L225 Difference]: With dead ends: 51 [2023-02-18 08:27:15,365 INFO L226 Difference]: Without dead ends: 50 [2023-02-18 08:27:15,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-02-18 08:27:15,366 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:15,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:15,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-18 08:27:15,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-02-18 08:27:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 49 states have internal predecessors, (55), 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) [2023-02-18 08:27:15,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2023-02-18 08:27:15,369 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 22 [2023-02-18 08:27:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:15,369 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2023-02-18 08:27:15,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2023-02-18 08:27:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2023-02-18 08:27:15,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-18 08:27:15,370 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:15,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 08:27:15,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-18 08:27:15,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-18 08:27:15,575 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1125471289, now seen corresponding path program 1 times [2023-02-18 08:27:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:15,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743167991] [2023-02-18 08:27:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:15,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:15,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743167991] [2023-02-18 08:27:15,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743167991] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142870064] [2023-02-18 08:27:15,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:15,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:15,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:15,618 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) [2023-02-18 08:27:15,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 08:27:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:15,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:27:15,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:15,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:15,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142870064] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:15,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:15,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-18 08:27:15,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521642582] [2023-02-18 08:27:15,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:15,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 08:27:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 08:27:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-18 08:27:15,682 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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) [2023-02-18 08:27:15,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:15,732 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2023-02-18 08:27:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 08:27:15,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-02-18 08:27:15,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:15,733 INFO L225 Difference]: With dead ends: 75 [2023-02-18 08:27:15,733 INFO L226 Difference]: Without dead ends: 74 [2023-02-18 08:27:15,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-02-18 08:27:15,734 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:15,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 62 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-02-18 08:27:15,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2023-02-18 08:27:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 71 states have internal predecessors, (80), 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) [2023-02-18 08:27:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2023-02-18 08:27:15,737 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 23 [2023-02-18 08:27:15,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:15,738 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2023-02-18 08:27:15,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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) [2023-02-18 08:27:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2023-02-18 08:27:15,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 08:27:15,738 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:15,738 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-18 08:27:15,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:15,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:15,943 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:15,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:15,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2121300384, now seen corresponding path program 1 times [2023-02-18 08:27:15,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:15,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675087528] [2023-02-18 08:27:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:15,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:15,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:15,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675087528] [2023-02-18 08:27:15,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675087528] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:15,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835387257] [2023-02-18 08:27:15,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:15,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:15,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:15,993 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:16,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 08:27:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:16,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 08:27:16,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:16,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:16,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835387257] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:16,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:16,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-02-18 08:27:16,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435534115] [2023-02-18 08:27:16,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:16,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-18 08:27:16,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:16,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-18 08:27:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-02-18 08:27:16,125 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 21 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 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) [2023-02-18 08:27:16,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:16,277 INFO L93 Difference]: Finished difference Result 161 states and 188 transitions. [2023-02-18 08:27:16,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-18 08:27:16,277 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 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 29 [2023-02-18 08:27:16,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:16,278 INFO L225 Difference]: With dead ends: 161 [2023-02-18 08:27:16,278 INFO L226 Difference]: Without dead ends: 160 [2023-02-18 08:27:16,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=344, Invalid=1138, Unknown=0, NotChecked=0, Total=1482 [2023-02-18 08:27:16,279 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 125 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:16,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 120 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:27:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-02-18 08:27:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 144. [2023-02-18 08:27:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 141 states have (on average 1.1843971631205674) internal successors, (167), 143 states have internal predecessors, (167), 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) [2023-02-18 08:27:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 167 transitions. [2023-02-18 08:27:16,285 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 167 transitions. Word has length 29 [2023-02-18 08:27:16,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:16,285 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 167 transitions. [2023-02-18 08:27:16,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 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) [2023-02-18 08:27:16,285 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 167 transitions. [2023-02-18 08:27:16,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 08:27:16,286 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:16,286 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 08:27:16,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 08:27:16,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:16,490 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:16,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash 569949300, now seen corresponding path program 2 times [2023-02-18 08:27:16,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:16,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297792872] [2023-02-18 08:27:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:16,529 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:16,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:16,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297792872] [2023-02-18 08:27:16,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297792872] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:16,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501473106] [2023-02-18 08:27:16,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:27:16,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:16,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:16,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:16,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 08:27:16,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 08:27:16,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:16,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 08:27:16,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:16,601 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:16,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:16,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501473106] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:16,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:16,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-02-18 08:27:16,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006857276] [2023-02-18 08:27:16,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:16,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 08:27:16,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:16,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 08:27:16,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-02-18 08:27:16,629 INFO L87 Difference]: Start difference. First operand 144 states and 167 transitions. Second operand has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 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) [2023-02-18 08:27:16,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:16,670 INFO L93 Difference]: Finished difference Result 287 states and 337 transitions. [2023-02-18 08:27:16,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 08:27:16,670 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 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 47 [2023-02-18 08:27:16,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:16,673 INFO L225 Difference]: With dead ends: 287 [2023-02-18 08:27:16,673 INFO L226 Difference]: Without dead ends: 286 [2023-02-18 08:27:16,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-02-18 08:27:16,675 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:16,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 126 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:16,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-02-18 08:27:16,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 272. [2023-02-18 08:27:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 269 states have (on average 1.1933085501858736) internal successors, (321), 271 states have internal predecessors, (321), 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) [2023-02-18 08:27:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 321 transitions. [2023-02-18 08:27:16,700 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 321 transitions. Word has length 47 [2023-02-18 08:27:16,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:16,700 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 321 transitions. [2023-02-18 08:27:16,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 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) [2023-02-18 08:27:16,700 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 321 transitions. [2023-02-18 08:27:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-02-18 08:27:16,701 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:16,701 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-18 08:27:16,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-18 08:27:16,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 08:27:16,906 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:16,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:16,907 INFO L85 PathProgramCache]: Analyzing trace with hash -74742206, now seen corresponding path program 1 times [2023-02-18 08:27:16,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:16,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195895773] [2023-02-18 08:27:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:16,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:16,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:16,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195895773] [2023-02-18 08:27:16,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195895773] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:16,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785273487] [2023-02-18 08:27:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:16,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:16,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:17,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:17,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 08:27:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:17,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-18 08:27:17,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 08:27:17,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 08:27:17,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785273487] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:17,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:17,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 40 [2023-02-18 08:27:17,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639504973] [2023-02-18 08:27:17,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:17,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-18 08:27:17,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:17,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-18 08:27:17,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1299, Unknown=0, NotChecked=0, Total=1560 [2023-02-18 08:27:17,294 INFO L87 Difference]: Start difference. First operand 272 states and 321 transitions. Second operand has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 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) [2023-02-18 08:27:17,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:17,466 INFO L93 Difference]: Finished difference Result 394 states and 469 transitions. [2023-02-18 08:27:17,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-18 08:27:17,466 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 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 49 [2023-02-18 08:27:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:17,467 INFO L225 Difference]: With dead ends: 394 [2023-02-18 08:27:17,467 INFO L226 Difference]: Without dead ends: 201 [2023-02-18 08:27:17,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=537, Invalid=2219, Unknown=0, NotChecked=0, Total=2756 [2023-02-18 08:27:17,471 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 90 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:17,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 109 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:27:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-02-18 08:27:17,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 178. [2023-02-18 08:27:17,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 1.1714285714285715) internal successors, (205), 177 states have internal predecessors, (205), 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) [2023-02-18 08:27:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2023-02-18 08:27:17,475 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 49 [2023-02-18 08:27:17,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:17,475 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2023-02-18 08:27:17,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 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) [2023-02-18 08:27:17,476 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2023-02-18 08:27:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-02-18 08:27:17,479 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:17,479 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2023-02-18 08:27:17,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:17,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-18 08:27:17,684 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:17,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1834436503, now seen corresponding path program 2 times [2023-02-18 08:27:17,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:17,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065646191] [2023-02-18 08:27:17,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:17,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 68 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:17,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:17,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065646191] [2023-02-18 08:27:17,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065646191] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:17,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396601903] [2023-02-18 08:27:17,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:27:17,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:17,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:17,794 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:17,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 08:27:17,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-18 08:27:17,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:17,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:27:17,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-02-18 08:27:18,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-02-18 08:27:18,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396601903] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:18,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:18,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 20 [2023-02-18 08:27:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470589794] [2023-02-18 08:27:18,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:18,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-18 08:27:18,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-18 08:27:18,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2023-02-18 08:27:18,198 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand has 21 states, 20 states have (on average 4.7) internal successors, (94), 21 states have internal predecessors, (94), 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) [2023-02-18 08:27:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:18,619 INFO L93 Difference]: Finished difference Result 269 states and 321 transitions. [2023-02-18 08:27:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-18 08:27:18,619 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.7) internal successors, (94), 21 states have internal predecessors, (94), 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 61 [2023-02-18 08:27:18,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:18,620 INFO L225 Difference]: With dead ends: 269 [2023-02-18 08:27:18,620 INFO L226 Difference]: Without dead ends: 268 [2023-02-18 08:27:18,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2023-02-18 08:27:18,621 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 56 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:18,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 99 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:27:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-02-18 08:27:18,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 177. [2023-02-18 08:27:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.1085714285714285) internal successors, (194), 176 states have internal predecessors, (194), 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) [2023-02-18 08:27:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 194 transitions. [2023-02-18 08:27:18,627 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 194 transitions. Word has length 61 [2023-02-18 08:27:18,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:18,627 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 194 transitions. [2023-02-18 08:27:18,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.7) internal successors, (94), 21 states have internal predecessors, (94), 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) [2023-02-18 08:27:18,628 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 194 transitions. [2023-02-18 08:27:18,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-18 08:27:18,628 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:18,628 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-18 08:27:18,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:18,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 08:27:18,833 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:18,834 INFO L85 PathProgramCache]: Analyzing trace with hash 598757938, now seen corresponding path program 2 times [2023-02-18 08:27:18,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:18,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861467012] [2023-02-18 08:27:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:18,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:19,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:19,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861467012] [2023-02-18 08:27:19,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861467012] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:19,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685970738] [2023-02-18 08:27:19,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:27:19,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:19,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:19,026 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:19,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 08:27:19,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 08:27:19,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:19,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 08:27:19,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:19,192 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:19,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:19,427 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:19,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685970738] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:19,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:19,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2023-02-18 08:27:19,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433261736] [2023-02-18 08:27:19,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:19,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-18 08:27:19,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-18 08:27:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2023-02-18 08:27:19,429 INFO L87 Difference]: Start difference. First operand 177 states and 194 transitions. Second operand has 38 states, 37 states have (on average 4.351351351351352) internal successors, (161), 38 states have internal predecessors, (161), 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) [2023-02-18 08:27:19,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:19,682 INFO L93 Difference]: Finished difference Result 766 states and 898 transitions. [2023-02-18 08:27:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-02-18 08:27:19,683 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.351351351351352) internal successors, (161), 38 states have internal predecessors, (161), 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 81 [2023-02-18 08:27:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:19,684 INFO L225 Difference]: With dead ends: 766 [2023-02-18 08:27:19,685 INFO L226 Difference]: Without dead ends: 765 [2023-02-18 08:27:19,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 125 SyntacticMatches, 18 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=910, Invalid=2170, Unknown=0, NotChecked=0, Total=3080 [2023-02-18 08:27:19,686 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 159 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:19,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 191 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:27:19,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-02-18 08:27:19,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 751. [2023-02-18 08:27:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 749 states have (on average 1.1121495327102804) internal successors, (833), 750 states have internal predecessors, (833), 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) [2023-02-18 08:27:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 833 transitions. [2023-02-18 08:27:19,717 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 833 transitions. Word has length 81 [2023-02-18 08:27:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:19,717 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 833 transitions. [2023-02-18 08:27:19,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.351351351351352) internal successors, (161), 38 states have internal predecessors, (161), 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) [2023-02-18 08:27:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 833 transitions. [2023-02-18 08:27:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-02-18 08:27:19,718 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:19,718 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 08:27:19,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-18 08:27:19,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:19,923 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:19,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:19,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1099314378, now seen corresponding path program 3 times [2023-02-18 08:27:19,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:19,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624267292] [2023-02-18 08:27:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:19,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:20,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:20,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624267292] [2023-02-18 08:27:20,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624267292] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:20,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285428401] [2023-02-18 08:27:20,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 08:27:20,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:20,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:20,071 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:20,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 08:27:20,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 08:27:20,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:20,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 08:27:20,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:20,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:20,305 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:20,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285428401] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:20,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:20,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-02-18 08:27:20,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740565450] [2023-02-18 08:27:20,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:20,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-18 08:27:20,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:20,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-18 08:27:20,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-02-18 08:27:20,307 INFO L87 Difference]: Start difference. First operand 751 states and 833 transitions. Second operand has 25 states, 24 states have (on average 9.125) internal successors, (219), 25 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:20,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:20,380 INFO L93 Difference]: Finished difference Result 1185 states and 1341 transitions. [2023-02-18 08:27:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 08:27:20,380 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 9.125) internal successors, (219), 25 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-02-18 08:27:20,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:20,383 INFO L225 Difference]: With dead ends: 1185 [2023-02-18 08:27:20,383 INFO L226 Difference]: Without dead ends: 1184 [2023-02-18 08:27:20,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 191 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-02-18 08:27:20,384 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 68 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:20,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 246 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:27:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2023-02-18 08:27:20,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1167. [2023-02-18 08:27:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 1165 states have (on average 1.109871244635193) internal successors, (1293), 1166 states have internal predecessors, (1293), 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) [2023-02-18 08:27:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1293 transitions. [2023-02-18 08:27:20,415 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1293 transitions. Word has length 107 [2023-02-18 08:27:20,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:20,415 INFO L495 AbstractCegarLoop]: Abstraction has 1167 states and 1293 transitions. [2023-02-18 08:27:20,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 9.125) internal successors, (219), 25 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:27:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1293 transitions. [2023-02-18 08:27:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-18 08:27:20,417 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:20,417 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 14, 5, 5, 5, 1, 1, 1, 1] [2023-02-18 08:27:20,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:20,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:20,623 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash -412516984, now seen corresponding path program 3 times [2023-02-18 08:27:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:20,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47489484] [2023-02-18 08:27:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:20,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:21,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 0 proven. 1316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:21,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:21,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47489484] [2023-02-18 08:27:21,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47489484] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:21,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531844185] [2023-02-18 08:27:21,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 08:27:21,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:21,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:21,249 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:21,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 08:27:21,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-18 08:27:21,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:21,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 40 conjunts are in the unsatisfiable core [2023-02-18 08:27:21,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 68 proven. 1248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:21,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:22,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 68 proven. 1248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:22,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531844185] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:22,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:22,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 40, 40] total 87 [2023-02-18 08:27:22,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370229029] [2023-02-18 08:27:22,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:22,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2023-02-18 08:27:22,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:22,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2023-02-18 08:27:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1368, Invalid=6288, Unknown=0, NotChecked=0, Total=7656 [2023-02-18 08:27:22,729 INFO L87 Difference]: Start difference. First operand 1167 states and 1293 transitions. Second operand has 88 states, 87 states have (on average 4.183908045977011) internal successors, (364), 88 states have internal predecessors, (364), 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) [2023-02-18 08:27:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:25,079 INFO L93 Difference]: Finished difference Result 7736 states and 9182 transitions. [2023-02-18 08:27:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-02-18 08:27:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 4.183908045977011) internal successors, (364), 88 states have internal predecessors, (364), 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 161 [2023-02-18 08:27:25,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:25,095 INFO L225 Difference]: With dead ends: 7736 [2023-02-18 08:27:25,095 INFO L226 Difference]: Without dead ends: 7735 [2023-02-18 08:27:25,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 245 SyntacticMatches, 28 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11591 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=7610, Invalid=30220, Unknown=0, NotChecked=0, Total=37830 [2023-02-18 08:27:25,103 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 429 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:25,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 148 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 08:27:25,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2023-02-18 08:27:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 4441. [2023-02-18 08:27:25,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4441 states, 4439 states have (on average 1.1259292633476008) internal successors, (4998), 4440 states have internal predecessors, (4998), 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) [2023-02-18 08:27:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4441 states to 4441 states and 4998 transitions. [2023-02-18 08:27:25,292 INFO L78 Accepts]: Start accepts. Automaton has 4441 states and 4998 transitions. Word has length 161 [2023-02-18 08:27:25,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:25,293 INFO L495 AbstractCegarLoop]: Abstraction has 4441 states and 4998 transitions. [2023-02-18 08:27:25,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 4.183908045977011) internal successors, (364), 88 states have internal predecessors, (364), 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) [2023-02-18 08:27:25,293 INFO L276 IsEmpty]: Start isEmpty. Operand 4441 states and 4998 transitions. [2023-02-18 08:27:25,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-02-18 08:27:25,296 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:25,296 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-18 08:27:25,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:25,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-02-18 08:27:25,501 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:25,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:25,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1001147322, now seen corresponding path program 4 times [2023-02-18 08:27:25,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:25,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356784389] [2023-02-18 08:27:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:25,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 0 proven. 2398 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:25,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:25,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356784389] [2023-02-18 08:27:25,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356784389] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:25,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499729023] [2023-02-18 08:27:25,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 08:27:25,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:25,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:25,946 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:25,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 08:27:26,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 08:27:26,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:26,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 08:27:26,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 1004 proven. 0 refuted. 0 times theorem prover too weak. 1394 trivial. 0 not checked. [2023-02-18 08:27:26,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 08:27:26,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499729023] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:27:26,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 08:27:26,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [24] total 47 [2023-02-18 08:27:26,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61213819] [2023-02-18 08:27:26,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:27:26,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 08:27:26,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:26,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 08:27:26,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=1727, Unknown=0, NotChecked=0, Total=2162 [2023-02-18 08:27:26,281 INFO L87 Difference]: Start difference. First operand 4441 states and 4998 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 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) [2023-02-18 08:27:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:26,485 INFO L93 Difference]: Finished difference Result 4442 states and 4998 transitions. [2023-02-18 08:27:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-18 08:27:26,485 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 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 227 [2023-02-18 08:27:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:26,487 INFO L225 Difference]: With dead ends: 4442 [2023-02-18 08:27:26,487 INFO L226 Difference]: Without dead ends: 290 [2023-02-18 08:27:26,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=618, Invalid=2804, Unknown=0, NotChecked=0, Total=3422 [2023-02-18 08:27:26,494 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 46 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:26,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 104 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:27:26,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-02-18 08:27:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2023-02-18 08:27:26,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.0034602076124568) internal successors, (290), 289 states have internal predecessors, (290), 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) [2023-02-18 08:27:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 290 transitions. [2023-02-18 08:27:26,501 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 290 transitions. Word has length 227 [2023-02-18 08:27:26,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:26,502 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 290 transitions. [2023-02-18 08:27:26,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 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) [2023-02-18 08:27:26,502 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 290 transitions. [2023-02-18 08:27:26,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-02-18 08:27:26,504 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:26,504 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 30, 5, 5, 5, 1, 1, 1, 1] [2023-02-18 08:27:26,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:26,709 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:26,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2009476216, now seen corresponding path program 4 times [2023-02-18 08:27:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:26,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249380336] [2023-02-18 08:27:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:28,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:28,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249380336] [2023-02-18 08:27:28,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249380336] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:28,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029285957] [2023-02-18 08:27:28,785 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 08:27:28,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:28,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:28,787 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:28,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 08:27:28,871 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 08:27:28,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:28,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-18 08:27:28,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:29,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:32,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029285957] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:32,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:32,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 141 [2023-02-18 08:27:32,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701669662] [2023-02-18 08:27:32,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:32,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2023-02-18 08:27:32,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:32,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2023-02-18 08:27:32,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2023-02-18 08:27:32,101 INFO L87 Difference]: Start difference. First operand 290 states and 290 transitions. Second operand has 142 states, 141 states have (on average 4.092198581560283) internal successors, (577), 142 states have internal predecessors, (577), 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) [2023-02-18 08:27:34,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:27:34,784 INFO L93 Difference]: Finished difference Result 580 states and 615 transitions. [2023-02-18 08:27:34,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2023-02-18 08:27:34,785 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 141 states have (on average 4.092198581560283) internal successors, (577), 142 states have internal predecessors, (577), 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 289 [2023-02-18 08:27:34,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:27:34,786 INFO L225 Difference]: With dead ends: 580 [2023-02-18 08:27:34,786 INFO L226 Difference]: Without dead ends: 579 [2023-02-18 08:27:34,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 439 SyntacticMatches, 68 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12875 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=12636, Invalid=32096, Unknown=0, NotChecked=0, Total=44732 [2023-02-18 08:27:34,790 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 560 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 08:27:34,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 351 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 08:27:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-02-18 08:27:34,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 578. [2023-02-18 08:27:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 577 states have (on average 1.001733102253033) internal successors, (578), 577 states have internal predecessors, (578), 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) [2023-02-18 08:27:34,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 578 transitions. [2023-02-18 08:27:34,810 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 578 transitions. Word has length 289 [2023-02-18 08:27:34,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:27:34,810 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 578 transitions. [2023-02-18 08:27:34,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 141 states have (on average 4.092198581560283) internal successors, (577), 142 states have internal predecessors, (577), 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) [2023-02-18 08:27:34,811 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 578 transitions. [2023-02-18 08:27:34,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2023-02-18 08:27:34,816 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:27:34,816 INFO L195 NwaCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 66, 5, 5, 5, 1, 1, 1, 1] [2023-02-18 08:27:34,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-18 08:27:35,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:35,022 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:27:35,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:27:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2092999148, now seen corresponding path program 5 times [2023-02-18 08:27:35,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:27:35,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704851224] [2023-02-18 08:27:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:27:35,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:27:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:27:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 19620 backedges. 0 proven. 19620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:27:42,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704851224] [2023-02-18 08:27:42,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704851224] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:27:42,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442310860] [2023-02-18 08:27:42,583 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 08:27:42,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:27:42,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:27:42,588 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:27:42,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 08:27:42,823 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2023-02-18 08:27:42,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:27:42,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 143 conjunts are in the unsatisfiable core [2023-02-18 08:27:42,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:27:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 19620 backedges. 0 proven. 19620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:46,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:27:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 19620 backedges. 0 proven. 19620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:27:54,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442310860] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:27:54,648 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:27:54,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 285 [2023-02-18 08:27:54,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222303449] [2023-02-18 08:27:54,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:27:54,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 286 states [2023-02-18 08:27:54,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:27:54,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 286 interpolants. [2023-02-18 08:27:54,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20591, Invalid=60919, Unknown=0, NotChecked=0, Total=81510 [2023-02-18 08:27:54,659 INFO L87 Difference]: Start difference. First operand 578 states and 578 transitions. Second operand has 286 states, 285 states have (on average 4.045614035087719) internal successors, (1153), 286 states have internal predecessors, (1153), 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) [2023-02-18 08:28:05,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:28:05,416 INFO L93 Difference]: Finished difference Result 1156 states and 1227 transitions. [2023-02-18 08:28:05,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2023-02-18 08:28:05,417 INFO L78 Accepts]: Start accepts. Automaton has has 286 states, 285 states have (on average 4.045614035087719) internal successors, (1153), 286 states have internal predecessors, (1153), 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 577 [2023-02-18 08:28:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:28:05,420 INFO L225 Difference]: With dead ends: 1156 [2023-02-18 08:28:05,420 INFO L226 Difference]: Without dead ends: 1155 [2023-02-18 08:28:05,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1437 GetRequests, 871 SyntacticMatches, 140 SemanticMatches, 426 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54203 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=51192, Invalid=131564, Unknown=0, NotChecked=0, Total=182756 [2023-02-18 08:28:05,427 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 947 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 08:28:05,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 651 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 08:28:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2023-02-18 08:28:05,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1154. [2023-02-18 08:28:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 1.0008673026886383) internal successors, (1154), 1153 states have internal predecessors, (1154), 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) [2023-02-18 08:28:05,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1154 transitions. [2023-02-18 08:28:05,453 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1154 transitions. Word has length 577 [2023-02-18 08:28:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:28:05,453 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1154 transitions. [2023-02-18 08:28:05,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 286 states, 285 states have (on average 4.045614035087719) internal successors, (1153), 286 states have internal predecessors, (1153), 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) [2023-02-18 08:28:05,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1154 transitions. [2023-02-18 08:28:05,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2023-02-18 08:28:05,477 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:28:05,478 INFO L195 NwaCegarLoop]: trace histogram [143, 143, 142, 142, 142, 142, 142, 138, 5, 5, 5, 1, 1, 1, 1] [2023-02-18 08:28:05,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-18 08:28:05,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-02-18 08:28:05,684 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:28:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:28:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1392963916, now seen corresponding path program 6 times [2023-02-18 08:28:05,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:28:05,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363072650] [2023-02-18 08:28:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:28:05,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:28:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:28:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 80676 backedges. 0 proven. 80676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:28:40,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:28:40,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363072650] [2023-02-18 08:28:40,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363072650] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:28:40,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124065966] [2023-02-18 08:28:40,013 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 08:28:40,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:28:40,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:28:40,014 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:28:40,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 08:28:40,694 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 139 check-sat command(s) [2023-02-18 08:28:40,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:28:40,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 287 conjunts are in the unsatisfiable core [2023-02-18 08:28:40,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:28:52,144 INFO L134 CoverageAnalysis]: Checked inductivity of 80676 backedges. 0 proven. 80676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:28:52,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:29:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 80676 backedges. 0 proven. 80676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:29:22,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124065966] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:29:22,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:29:22,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [287, 287, 287] total 573 [2023-02-18 08:29:22,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527851777] [2023-02-18 08:29:22,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:29:22,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 574 states [2023-02-18 08:29:22,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:29:22,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 574 interpolants. [2023-02-18 08:29:22,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82655, Invalid=246247, Unknown=0, NotChecked=0, Total=328902 [2023-02-18 08:29:22,340 INFO L87 Difference]: Start difference. First operand 1154 states and 1154 transitions. Second operand has 574 states, 573 states have (on average 4.022687609075043) internal successors, (2305), 574 states have internal predecessors, (2305), 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) [2023-02-18 08:30:28,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:30:28,174 INFO L93 Difference]: Finished difference Result 2308 states and 2451 transitions. [2023-02-18 08:30:28,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 575 states. [2023-02-18 08:30:28,176 INFO L78 Accepts]: Start accepts. Automaton has has 574 states, 573 states have (on average 4.022687609075043) internal successors, (2305), 574 states have internal predecessors, (2305), 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 1153 [2023-02-18 08:30:28,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:30:28,181 INFO L225 Difference]: With dead ends: 2308 [2023-02-18 08:30:28,181 INFO L226 Difference]: Without dead ends: 2307 [2023-02-18 08:30:28,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2877 GetRequests, 1735 SyntacticMatches, 284 SemanticMatches, 858 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222395 ImplicationChecksByTransitivity, 82.1s TimeCoverageRelationStatistics Valid=206064, Invalid=532676, Unknown=0, NotChecked=0, Total=738740 [2023-02-18 08:30:28,218 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3865 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3865 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:30:28,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3865 Valid, 1195 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-18 08:30:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2023-02-18 08:30:28,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2306. [2023-02-18 08:30:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.0004338394793926) internal successors, (2306), 2305 states have internal predecessors, (2306), 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) [2023-02-18 08:30:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 2306 transitions. [2023-02-18 08:30:28,267 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 2306 transitions. Word has length 1153 [2023-02-18 08:30:28,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:30:28,268 INFO L495 AbstractCegarLoop]: Abstraction has 2306 states and 2306 transitions. [2023-02-18 08:30:28,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 574 states, 573 states have (on average 4.022687609075043) internal successors, (2305), 574 states have internal predecessors, (2305), 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) [2023-02-18 08:30:28,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 2306 transitions. [2023-02-18 08:30:28,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2306 [2023-02-18 08:30:28,293 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:30:28,295 INFO L195 NwaCegarLoop]: trace histogram [287, 287, 286, 286, 286, 286, 286, 282, 5, 5, 5, 1, 1, 1, 1] [2023-02-18 08:30:28,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-02-18 08:30:28,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:30:28,504 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:30:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:30:28,505 INFO L85 PathProgramCache]: Analyzing trace with hash 384489404, now seen corresponding path program 7 times [2023-02-18 08:30:28,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:30:28,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474134821] [2023-02-18 08:30:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:30:28,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:30:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 327204 backedges. 0 proven. 327204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:34:12,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474134821] [2023-02-18 08:34:12,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474134821] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:34:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056501798] [2023-02-18 08:34:12,675 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 08:34:12,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:34:12,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:34:12,678 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:34:12,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 08:34:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:13,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 575 conjunts are in the unsatisfiable core [2023-02-18 08:34:13,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:35:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 327204 backedges. 0 proven. 327204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:35:00,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:37:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 327204 backedges. 0 proven. 327204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:37:20,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056501798] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:37:20,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:37:20,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [575, 575, 575] total 1149 [2023-02-18 08:37:20,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829539825] [2023-02-18 08:37:20,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:37:20,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1150 states [2023-02-18 08:37:20,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:37:20,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1150 interpolants. [2023-02-18 08:37:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331199, Invalid=990151, Unknown=0, NotChecked=0, Total=1321350 [2023-02-18 08:37:20,191 INFO L87 Difference]: Start difference. First operand 2306 states and 2306 transitions. Second operand has 1150 states, 1149 states have (on average 4.011314186248912) internal successors, (4609), 1150 states have internal predecessors, (4609), 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)