./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/loop-zilu/benchmark23_conjunctive.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 c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:03:35,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:03:35,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:03:35,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:03:35,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:03:35,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:03:35,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:03:35,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:03:35,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:03:35,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:03:35,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:03:35,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:03:35,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:03:35,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:03:35,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:03:35,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:03:35,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:03:35,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:03:35,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:03:35,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:03:35,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:03:35,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:03:35,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:03:35,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:03:35,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:03:35,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:03:35,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:03:35,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:03:35,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:03:35,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:03:35,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:03:35,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:03:35,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:03:35,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:03:35,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:03:35,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:03:35,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:03:35,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:03:35,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:03:35,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:03:35,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:03:35,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 23:03:35,999 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:03:35,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:03:36,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:03:36,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:03:36,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:03:36,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:03:36,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:03:36,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:03:36,002 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:03:36,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:03:36,002 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 23:03:36,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:03:36,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:03:36,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 23:03:36,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:03:36,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:03:36,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:03:36,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:03:36,004 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:03:36,004 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 23:03:36,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:03:36,004 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:03:36,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:03:36,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:03:36,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:03:36,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:03:36,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:03:36,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:03:36,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:03:36,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:03:36,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:03:36,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:03:36,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:03:36,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:03:36,006 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:03:36,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:03:36,006 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:03:36,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2023-02-18 23:03:36,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:03:36,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:03:36,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:03:36,198 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:03:36,198 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:03:36,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2023-02-18 23:03:37,112 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:03:37,278 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:03:37,278 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2023-02-18 23:03:37,282 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8224195dc/d2828e5c2c7142c9ad0baec6f8126bfb/FLAG451fe290f [2023-02-18 23:03:37,701 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8224195dc/d2828e5c2c7142c9ad0baec6f8126bfb [2023-02-18 23:03:37,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:03:37,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:03:37,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:03:37,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:03:37,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:03:37,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1552d746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37, skipping insertion in model container [2023-02-18 23:03:37,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:03:37,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:03:37,810 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/loop-zilu/benchmark23_conjunctive.i[873,886] [2023-02-18 23:03:37,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:03:37,821 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:03:37,828 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/loop-zilu/benchmark23_conjunctive.i[873,886] [2023-02-18 23:03:37,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:03:37,837 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:03:37,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37 WrapperNode [2023-02-18 23:03:37,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:03:37,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:03:37,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:03:37,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:03:37,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,856 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-02-18 23:03:37,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:03:37,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:03:37,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:03:37,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:03:37,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:03:37,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:03:37,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:03:37,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:03:37,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (1/1) ... [2023-02-18 23:03:37,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:03:37,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:37,887 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 23:03:37,888 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 23:03:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 23:03:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 23:03:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:03:37,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:03:37,958 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:03:37,959 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:03:38,040 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:03:38,044 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:03:38,045 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:03:38,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:03:38 BoogieIcfgContainer [2023-02-18 23:03:38,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:03:38,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:03:38,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:03:38,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:03:38,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:03:37" (1/3) ... [2023-02-18 23:03:38,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204658e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:03:38, skipping insertion in model container [2023-02-18 23:03:38,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:03:37" (2/3) ... [2023-02-18 23:03:38,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204658e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:03:38, skipping insertion in model container [2023-02-18 23:03:38,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:03:38" (3/3) ... [2023-02-18 23:03:38,055 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2023-02-18 23:03:38,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:03:38,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 23:03:38,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:03:38,103 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;@115869fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:03:38,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 23:03:38,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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 23:03:38,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:03:38,109 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:38,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:03:38,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:38,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-18 23:03:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:38,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101275653] [2023-02-18 23:03:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:38,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:38,235 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 23:03:38,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:38,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101275653] [2023-02-18 23:03:38,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101275653] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:03:38,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:03:38,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:03:38,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119970642] [2023-02-18 23:03:38,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:03:38,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:03:38,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:03:38,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:03:38,266 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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 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 23:03:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:38,309 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2023-02-18 23:03:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:03:38,313 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 23:03:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:38,318 INFO L225 Difference]: With dead ends: 24 [2023-02-18 23:03:38,319 INFO L226 Difference]: Without dead ends: 11 [2023-02-18 23:03:38,321 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 23:03:38,324 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 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 23:03:38,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:03:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-18 23:03:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-18 23:03:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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 23:03:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-02-18 23:03:38,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2023-02-18 23:03:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:38,349 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-18 23:03:38,349 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 23:03:38,349 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-02-18 23:03:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:03:38,350 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:38,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:03:38,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:03:38,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:38,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-18 23:03:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:38,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155227822] [2023-02-18 23:03:38,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:38,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:38,407 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 23:03:38,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:38,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155227822] [2023-02-18 23:03:38,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155227822] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:03:38,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:03:38,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:03:38,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554209919] [2023-02-18 23:03:38,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:03:38,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:03:38,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:38,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:03:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:03:38,410 INFO L87 Difference]: Start difference. First operand 11 states and 11 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 23:03:38,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:38,417 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-02-18 23:03:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:03:38,418 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 23:03:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:38,418 INFO L225 Difference]: With dead ends: 15 [2023-02-18 23:03:38,418 INFO L226 Difference]: Without dead ends: 14 [2023-02-18 23:03:38,419 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 23:03:38,420 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:38,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:03:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-18 23:03:38,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-18 23:03:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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 23:03:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-18 23:03:38,423 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2023-02-18 23:03:38,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:38,423 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-18 23:03:38,423 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 23:03:38,423 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-18 23:03:38,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:03:38,424 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:38,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:03:38,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:03:38,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:38,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-18 23:03:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:38,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862067890] [2023-02-18 23:03:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:38,508 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 23:03:38,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:38,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862067890] [2023-02-18 23:03:38,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862067890] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:03:38,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:03:38,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:03:38,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618153292] [2023-02-18 23:03:38,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:03:38,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:03:38,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:38,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:03:38,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:03:38,511 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) 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 23:03:38,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:38,525 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-02-18 23:03:38,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:03:38,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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 23:03:38,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:38,526 INFO L225 Difference]: With dead ends: 14 [2023-02-18 23:03:38,526 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 23:03:38,526 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 23:03:38,527 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:38,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:03:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 23:03:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-18 23:03:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:03:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-02-18 23:03:38,530 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-02-18 23:03:38,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:38,530 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-02-18 23:03:38,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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 23:03:38,530 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-02-18 23:03:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:03:38,530 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:38,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:03:38,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:03:38,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:38,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:38,534 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-18 23:03:38,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:38,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309912719] [2023-02-18 23:03:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:38,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:38,563 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 23:03:38,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:38,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309912719] [2023-02-18 23:03:38,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309912719] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:03:38,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:03:38,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:03:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994676571] [2023-02-18 23:03:38,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:03:38,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:03:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:03:38,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:03:38,566 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 23:03:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:38,582 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-18 23:03:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:03:38,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2023-02-18 23:03:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:38,583 INFO L225 Difference]: With dead ends: 16 [2023-02-18 23:03:38,583 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 23:03:38,583 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 23:03:38,584 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:38,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:03:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 23:03:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-18 23:03:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 23:03:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-18 23:03:38,587 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2023-02-18 23:03:38,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:38,587 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-18 23:03:38,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 23:03:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-18 23:03:38,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 23:03:38,588 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:38,588 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:03:38,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:03:38,588 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:38,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:38,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-18 23:03:38,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:38,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299842651] [2023-02-18 23:03:38,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:38,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:38,615 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 23:03:38,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:38,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299842651] [2023-02-18 23:03:38,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299842651] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:03:38,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173764842] [2023-02-18 23:03:38,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:38,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:38,620 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 23:03:38,626 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 23:03:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:38,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 23:03:38,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:03:38,697 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 23:03:38,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:03:38,726 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 23:03:38,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173764842] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:03:38,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:03:38,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 23:03:38,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081580840] [2023-02-18 23:03:38,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:03:38,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:03:38,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:38,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:03:38,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:03:38,734 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 23:03:38,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:38,753 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-02-18 23:03:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:03:38,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 11 [2023-02-18 23:03:38,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:38,754 INFO L225 Difference]: With dead ends: 31 [2023-02-18 23:03:38,754 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 23:03:38,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:03:38,756 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:38,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:03:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 23:03:38,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-02-18 23:03:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:03:38,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-02-18 23:03:38,759 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2023-02-18 23:03:38,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:38,759 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-02-18 23:03:38,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 23:03:38,760 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-02-18 23:03:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-18 23:03:38,760 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:38,760 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 23:03:38,765 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 23:03:38,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:38,965 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:38,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2023-02-18 23:03:38,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:38,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192113477] [2023-02-18 23:03:38,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:38,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:03:39,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:39,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192113477] [2023-02-18 23:03:39,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192113477] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:03:39,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:03:39,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:03:39,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110790500] [2023-02-18 23:03:39,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:03:39,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:03:39,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:39,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:03:39,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:03:39,001 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:03:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:39,015 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-02-18 23:03:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:03:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-18 23:03:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:39,017 INFO L225 Difference]: With dead ends: 28 [2023-02-18 23:03:39,017 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 23:03:39,018 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 23:03:39,018 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:39,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:03:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 23:03:39,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-18 23:03:39,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 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 23:03:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2023-02-18 23:03:39,025 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 13 [2023-02-18 23:03:39,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:39,025 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2023-02-18 23:03:39,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:03:39,025 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2023-02-18 23:03:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-18 23:03:39,027 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:39,027 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 23:03:39,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 23:03:39,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash 924342317, now seen corresponding path program 2 times [2023-02-18 23:03:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:39,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735391448] [2023-02-18 23:03:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:39,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:39,115 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:39,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:39,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735391448] [2023-02-18 23:03:39,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735391448] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:03:39,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781429211] [2023-02-18 23:03:39,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:03:39,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:39,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:39,120 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 23:03:39,121 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 23:03:39,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:03:39,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:03:39,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:03:39,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:03:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:39,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:03:39,239 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:39,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781429211] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:03:39,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:03:39,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 23:03:39,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698560967] [2023-02-18 23:03:39,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:03:39,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 23:03:39,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:39,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 23:03:39,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:03:39,243 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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 23:03:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:39,294 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2023-02-18 23:03:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 23:03:39,295 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-18 23:03:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:39,296 INFO L225 Difference]: With dead ends: 58 [2023-02-18 23:03:39,297 INFO L226 Difference]: Without dead ends: 57 [2023-02-18 23:03:39,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:03:39,298 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:39,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:03:39,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-18 23:03:39,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-02-18 23:03:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 56 states have internal predecessors, (57), 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 23:03:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2023-02-18 23:03:39,307 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 26 [2023-02-18 23:03:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:39,307 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2023-02-18 23:03:39,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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 23:03:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2023-02-18 23:03:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-18 23:03:39,309 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:39,309 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 23:03:39,315 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 23:03:39,514 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,SelfDestructingSolverStorable6 [2023-02-18 23:03:39,514 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:39,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:39,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1183028819, now seen corresponding path program 3 times [2023-02-18 23:03:39,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:39,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586046387] [2023-02-18 23:03:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:39,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586046387] [2023-02-18 23:03:39,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586046387] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:03:39,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12427402] [2023-02-18 23:03:39,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:03:39,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:39,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:39,726 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 23:03:39,728 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 23:03:39,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:03:39,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:03:39,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 23:03:39,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:03:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:39,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:03:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:39,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12427402] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:03:39,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:03:40,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 23:03:40,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932320284] [2023-02-18 23:03:40,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:03:40,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 23:03:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:40,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 23:03:40,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:03:40,002 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 23:03:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:40,073 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2023-02-18 23:03:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 23:03:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 56 [2023-02-18 23:03:40,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:40,075 INFO L225 Difference]: With dead ends: 118 [2023-02-18 23:03:40,075 INFO L226 Difference]: Without dead ends: 117 [2023-02-18 23:03:40,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 89 SyntacticMatches, 11 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:03:40,076 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:40,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 75 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:03:40,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-18 23:03:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-02-18 23:03:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.0086206896551724) internal successors, (117), 116 states have internal predecessors, (117), 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 23:03:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2023-02-18 23:03:40,082 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 56 [2023-02-18 23:03:40,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:40,083 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2023-02-18 23:03:40,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 23:03:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2023-02-18 23:03:40,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-02-18 23:03:40,085 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:40,085 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2023-02-18 23:03:40,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 23:03:40,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:40,298 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:40,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:40,298 INFO L85 PathProgramCache]: Analyzing trace with hash 493726893, now seen corresponding path program 4 times [2023-02-18 23:03:40,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:40,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333002258] [2023-02-18 23:03:40,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:40,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:40,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:40,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333002258] [2023-02-18 23:03:40,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333002258] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:03:40,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448902784] [2023-02-18 23:03:40,730 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:03:40,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:40,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:40,731 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 23:03:40,733 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 23:03:40,823 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:03:40,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:03:40,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 23:03:40,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:03:41,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:41,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:03:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:41,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448902784] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:03:41,587 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:03:41,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 23:03:41,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140774728] [2023-02-18 23:03:41,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:03:41,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 23:03:41,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:41,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 23:03:41,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:03:41,590 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 23:03:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:41,689 INFO L93 Difference]: Finished difference Result 238 states and 261 transitions. [2023-02-18 23:03:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 23:03:41,690 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 116 [2023-02-18 23:03:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:41,691 INFO L225 Difference]: With dead ends: 238 [2023-02-18 23:03:41,691 INFO L226 Difference]: Without dead ends: 237 [2023-02-18 23:03:41,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 185 SyntacticMatches, 23 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:03:41,693 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:41,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 148 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:03:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-02-18 23:03:41,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2023-02-18 23:03:41,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.0042372881355932) internal successors, (237), 236 states have internal predecessors, (237), 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 23:03:41,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2023-02-18 23:03:41,702 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 116 [2023-02-18 23:03:41,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:41,702 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2023-02-18 23:03:41,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 23:03:41,703 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2023-02-18 23:03:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-02-18 23:03:41,704 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:41,705 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2023-02-18 23:03:41,716 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 23:03:41,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:41,909 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:41,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:41,909 INFO L85 PathProgramCache]: Analyzing trace with hash 982823597, now seen corresponding path program 5 times [2023-02-18 23:03:41,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:41,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674097556] [2023-02-18 23:03:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:41,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:43,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:43,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674097556] [2023-02-18 23:03:43,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674097556] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:03:43,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227805260] [2023-02-18 23:03:43,244 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:03:43,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:43,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:43,245 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 23:03:43,247 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 23:03:43,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 23:03:43,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:03:43,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 23:03:43,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:03:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:44,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:03:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:46,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227805260] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:03:46,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:03:46,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 23:03:46,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811486448] [2023-02-18 23:03:46,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:03:46,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 23:03:46,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:03:46,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 23:03:46,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:03:46,100 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 23:03:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:46,327 INFO L93 Difference]: Finished difference Result 478 states and 525 transitions. [2023-02-18 23:03:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-18 23:03:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 236 [2023-02-18 23:03:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:46,331 INFO L225 Difference]: With dead ends: 478 [2023-02-18 23:03:46,331 INFO L226 Difference]: Without dead ends: 477 [2023-02-18 23:03:46,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 377 SyntacticMatches, 47 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:03:46,333 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:46,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 292 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:03:46,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-02-18 23:03:46,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2023-02-18 23:03:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 1.0021008403361344) internal successors, (477), 476 states have internal predecessors, (477), 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 23:03:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 477 transitions. [2023-02-18 23:03:46,358 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 477 transitions. Word has length 236 [2023-02-18 23:03:46,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:46,359 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 477 transitions. [2023-02-18 23:03:46,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 23:03:46,360 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 477 transitions. [2023-02-18 23:03:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-02-18 23:03:46,364 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:46,364 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1] [2023-02-18 23:03:46,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 23:03:46,568 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,SelfDestructingSolverStorable9 [2023-02-18 23:03:46,569 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:46,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1056226989, now seen corresponding path program 6 times [2023-02-18 23:03:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:46,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994974930] [2023-02-18 23:03:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:46,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:51,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:51,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994974930] [2023-02-18 23:03:51,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994974930] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:03:51,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212226700] [2023-02-18 23:03:51,181 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:03:51,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:51,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:51,182 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 23:03:51,184 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 23:03:51,429 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 23:03:51,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:03:51,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 23:03:51,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:03:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:54,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:01,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212226700] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:01,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:01,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 23:04:01,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570764411] [2023-02-18 23:04:01,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:01,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 23:04:01,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 23:04:01,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:04:01,820 INFO L87 Difference]: Start difference. First operand 477 states and 477 transitions. Second operand has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 23:04:02,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:02,589 INFO L93 Difference]: Finished difference Result 958 states and 1053 transitions. [2023-02-18 23:04:02,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-18 23:04:02,590 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 476 [2023-02-18 23:04:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:02,592 INFO L225 Difference]: With dead ends: 958 [2023-02-18 23:04:02,592 INFO L226 Difference]: Without dead ends: 957 [2023-02-18 23:04:02,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1046 GetRequests, 761 SyntacticMatches, 95 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4465 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:04:02,594 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:02,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 584 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:04:02,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-02-18 23:04:02,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2023-02-18 23:04:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 956 states have (on average 1.0010460251046025) internal successors, (957), 956 states have internal predecessors, (957), 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 23:04:02,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 957 transitions. [2023-02-18 23:04:02,609 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 957 transitions. Word has length 476 [2023-02-18 23:04:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:02,609 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 957 transitions. [2023-02-18 23:04:02,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 23:04:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 957 transitions. [2023-02-18 23:04:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2023-02-18 23:04:02,632 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:02,632 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1, 1, 1] [2023-02-18 23:04:02,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-18 23:04:02,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:02,837 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:04:02,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:02,837 INFO L85 PathProgramCache]: Analyzing trace with hash 402445997, now seen corresponding path program 7 times [2023-02-18 23:04:02,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:02,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425957363] [2023-02-18 23:04:02,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:02,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:22,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:22,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425957363] [2023-02-18 23:04:22,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425957363] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:22,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988129360] [2023-02-18 23:04:22,473 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:04:22,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:22,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:22,495 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 23:04:22,496 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 23:04:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:22,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 202 conjunts are in the unsatisfiable core [2023-02-18 23:04:22,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 70140 proven. 0 refuted. 0 times theorem prover too weak. 20205 trivial. 0 not checked. [2023-02-18 23:04:42,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:04:42,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988129360] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:42,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:04:42,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [192] total 394 [2023-02-18 23:04:42,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352527914] [2023-02-18 23:04:42,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:42,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2023-02-18 23:04:42,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:42,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2023-02-18 23:04:42,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28930, Invalid=125912, Unknown=0, NotChecked=0, Total=154842 [2023-02-18 23:04:42,390 INFO L87 Difference]: Start difference. First operand 957 states and 957 transitions. Second operand has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 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 23:04:52,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:52,249 INFO L93 Difference]: Finished difference Result 957 states and 957 transitions. [2023-02-18 23:04:52,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2023-02-18 23:04:52,253 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 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 956 [2023-02-18 23:04:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:52,253 INFO L225 Difference]: With dead ends: 957 [2023-02-18 23:04:52,253 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 23:04:52,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1247 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57891 ImplicationChecksByTransitivity, 36.6s TimeCoverageRelationStatistics Valid=44180, Invalid=199362, Unknown=0, NotChecked=0, Total=243542 [2023-02-18 23:04:52,264 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 200 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 3828 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:52,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 964 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3828 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-18 23:04:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 23:04:52,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 23:04:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 23:04:52,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 956 [2023-02-18 23:04:52,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:52,265 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 23:04:52,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 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 23:04:52,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 23:04:52,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 23:04:52,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-18 23:04:52,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-18 23:04:52,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-18 23:04:52,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-18 23:04:52,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:52,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:52,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 23:04:52,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-02-18 23:04:52,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 23:04:52,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-02-18 23:04:52,484 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-02-18 23:04:52,484 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-02-18 23:04:52,486 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse3 (+ |ULTIMATE.start_main_~j~0#1| 2))) (let ((.cse8 (< .cse3 2147483618)) (.cse7 (< .cse3 2147483616)) (.cse9 (< .cse3 2147483640)) (.cse11 (< .cse3 2147483614)) (.cse17 (< .cse3 2147483630)) (.cse16 (< .cse3 2147483624)) (.cse24 (< .cse3 2147483620)) (.cse6 (<= (+ 2 |ULTIMATE.start_main_~j~0#1|) 2147483647)) (.cse21 (< .cse3 2147483644)) (.cse4 (< .cse3 2147483646)) (.cse25 (< .cse3 2147483608)) (.cse19 (< .cse3 2147483622)) (.cse26 (< .cse3 2147483604)) (.cse13 (< .cse3 2147483606)) (.cse10 (< .cse3 2147483628)) (.cse5 (< .cse3 2147483632)) (.cse12 (< .cse3 2147483636)) (.cse18 (< .cse3 2147483642)) (.cse22 (< .cse3 2147483610)) (.cse14 (< .cse3 2147483626)) (.cse20 (< .cse3 2147483638)) (.cse15 (< .cse3 2147483634)) (.cse0 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648))) (.cse2 (+ |ULTIMATE.start_main_~i~0#1| (- 1))) (.cse23 (< .cse3 2147483612))) (or (and (<= |ULTIMATE.start_main_~j~0#1| 0) (<= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (<= |ULTIMATE.start_main_~i~0#1| 99) .cse1) (and .cse0 .cse1 (<= 56 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 114) (< .cse3 2147483576)) (and (< .cse3 2147483572) (<= 54 .cse2) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 110)) (and .cse4 .cse0 .cse1 (<= 91 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 184)) (and (< .cse3 2147483602) (<= |ULTIMATE.start_main_~j~0#1| 140) .cse0 (<= 69 .cse2) .cse1) (and (< .cse3 2147483468) .cse0 .cse1 (<= 98 .cse2)) (and .cse5 (<= 36 .cse2) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 74)) (and (<= |ULTIMATE.start_main_~j~0#1| 42) (<= 20 .cse2) .cse0 .cse6 .cse1) (and (< .cse3 2147483566) (<= |ULTIMATE.start_main_~j~0#1| 104) .cse0 .cse1 (<= 51 .cse2)) (and .cse0 .cse7 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 154) (<= 76 .cse2)) (and .cse0 (< .cse3 2147483578) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 116) (<= 57 .cse2)) (and (< .cse3 2147483592) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 130) (<= 64 .cse2)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 60) .cse8 (<= 29 .cse2)) (and .cse0 .cse1 (< .cse3 2147483466) (<= 97 .cse2)) (and (<= 4 .cse2) .cse0 .cse9 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 10)) (and .cse0 (<= 34 .cse2) .cse10 (<= |ULTIMATE.start_main_~j~0#1| 70) .cse1) (and (<= |ULTIMATE.start_main_~j~0#1| 112) (<= 55 .cse2) .cse0 .cse1 (< .cse3 2147483574)) (and .cse0 (<= 77 .cse2) .cse1 .cse8 (<= |ULTIMATE.start_main_~j~0#1| 156)) (and (<= |ULTIMATE.start_main_~j~0#1| 134) .cse0 .cse1 (< .cse3 2147483596) (<= 66 .cse2)) (and .cse11 (<= 27 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 56) .cse1) (and (<= |ULTIMATE.start_main_~j~0#1| 100) .cse0 .cse1 (<= 49 .cse2) (< .cse3 2147483562)) (and .cse5 .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 170) (<= 84 .cse2)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 126) .cse1 (<= 62 .cse2) (< .cse3 2147483588)) (and (< .cse3 2147483556) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 94) (<= 46 .cse2) .cse1) (and (<= |ULTIMATE.start_main_~j~0#1| 174) .cse0 .cse12 .cse1 (<= 86 .cse2)) (and .cse4 (<= 43 .cse2) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 88)) (and .cse0 .cse6 (<= 92 .cse2) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 186)) (and (<= 23 .cse2) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 48) .cse13) (and .cse14 .cse0 (<= |ULTIMATE.start_main_~j~0#1| 164) (<= 81 .cse2) .cse1) (and (<= |ULTIMATE.start_main_~j~0#1| 76) .cse15 .cse0 .cse1 (<= 37 .cse2)) (and (< .cse3 2147483586) .cse0 .cse1 (<= 61 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 124)) (and .cse0 .cse16 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 66) (<= 32 .cse2)) (and (<= 16 .cse2) .cse0 .cse9 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 34)) (and .cse0 .cse1 (<= 94 .cse2) (< .cse3 2147483460)) (and (<= 14 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 30) .cse12 .cse1) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 24) .cse1 (<= 11 .cse2) .cse17) (and .cse0 .cse6 .cse1 (<= 2 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 6)) (and (<= |ULTIMATE.start_main_~j~0#1| 72) .cse0 .cse1 .cse17 (<= 35 .cse2)) (and .cse0 (<= 17 .cse2) .cse18 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 36)) (and (<= |ULTIMATE.start_main_~j~0#1| 40) .cse4 .cse0 .cse1 (<= 19 .cse2)) (and .cse0 .cse6 .cse1 (<= 44 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 90)) (and (<= |ULTIMATE.start_main_~j~0#1| 96) .cse0 .cse1 (<= 47 .cse2) (< .cse3 2147483558)) (and .cse0 .cse9 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 178) (<= 88 .cse2)) (and .cse0 (<= 50 .cse2) .cse1 (< .cse3 2147483564) (<= |ULTIMATE.start_main_~j~0#1| 102)) (and .cse19 .cse0 .cse1 (<= 79 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 160)) (and (<= |ULTIMATE.start_main_~j~0#1| 188) .cse0 .cse1 (<= 93 .cse2)) (and (<= |ULTIMATE.start_main_~j~0#1| 138) .cse0 (<= 68 .cse2) .cse1 (< .cse3 2147483600)) (and (<= 48 .cse2) .cse0 .cse1 (< .cse3 2147483560) (<= |ULTIMATE.start_main_~j~0#1| 98)) (and (<= 15 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 32) .cse0 .cse20 .cse1) (and .cse21 (<= |ULTIMATE.start_main_~j~0#1| 14) .cse0 .cse1 (<= 6 .cse2)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 148) (<= 73 .cse2) .cse1 .cse22) (and .cse15 .cse0 (<= |ULTIMATE.start_main_~j~0#1| 28) .cse1 (<= 13 .cse2)) (and (<= |ULTIMATE.start_main_~j~0#1| 58) .cse0 .cse7 (<= 28 .cse2) .cse1) (and .cse21 (<= 42 .cse2) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 86)) (and .cse21 (<= 18 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 38) .cse1) (and (<= 74 .cse2) .cse0 .cse1 .cse23 (<= |ULTIMATE.start_main_~j~0#1| 150)) (and (<= 5 .cse2) .cse0 .cse18 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 12)) (and .cse24 .cse0 (<= |ULTIMATE.start_main_~j~0#1| 62) (<= 30 .cse2) .cse1) (and .cse0 .cse9 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 82) (<= 40 .cse2)) (and (<= |ULTIMATE.start_main_~j~0#1| 176) .cse0 .cse20 (<= 87 .cse2) .cse1) (and (<= 41 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 84) .cse18 .cse1) (and .cse11 (<= |ULTIMATE.start_main_~j~0#1| 152) .cse0 .cse1 (<= 75 .cse2)) (and (<= 83 .cse2) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 168) .cse17) (and (<= 80 .cse2) .cse0 .cse16 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 162)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 22) (<= 10 .cse2) .cse10 .cse1) (and .cse25 (<= 72 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 146) .cse1) (and (<= 22 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 46) .cse1 .cse26) (and .cse24 .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 158) (<= 78 .cse2)) (and .cse0 .cse6 .cse1 (<= 8 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 18)) (and .cse4 .cse0 (<= |ULTIMATE.start_main_~j~0#1| 16) .cse1 (<= 7 .cse2)) (and .cse0 (<= 0 .cse2) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 2)) (and (<= 52 .cse2) .cse0 (< .cse3 2147483568) (<= |ULTIMATE.start_main_~j~0#1| 106) .cse1) (and (<= 90 .cse2) .cse21 .cse0 (<= |ULTIMATE.start_main_~j~0#1| 182) .cse1) (and (<= 67 .cse2) .cse0 (< .cse3 2147483598) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 136)) (and (<= 1 .cse2) .cse4 .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 4)) (and .cse25 .cse0 (<= 24 .cse2) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 50)) (and (<= |ULTIMATE.start_main_~j~0#1| 132) .cse0 .cse1 (< .cse3 2147483594) (<= 65 .cse2)) (and .cse19 (<= 31 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 64) .cse1) (and (<= 45 .cse2) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 92) .cse1) (and .cse0 .cse1 (< .cse3 2147483462) (<= 95 .cse2)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 20) (<= 9 .cse2)) (and (<= |ULTIMATE.start_main_~j~0#1| 142) (<= 70 .cse2) .cse0 .cse1 .cse26) (and .cse0 .cse1 (<= 21 .cse2) (<= |ULTIMATE.start_main_~j~0#1| 44)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 144) .cse1 .cse13 (<= 71 .cse2)) (and .cse0 (<= 58 .cse2) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 118) (< .cse3 2147483580)) (and (<= |ULTIMATE.start_main_~j~0#1| 166) .cse0 .cse10 .cse1 (<= 82 .cse2)) (and (<= 53 .cse2) .cse0 (< .cse3 2147483570) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 108)) (and .cse0 (<= 60 .cse2) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 122) (< .cse3 2147483584)) (and (<= |ULTIMATE.start_main_~j~0#1| 8) .cse0 .cse1 (<= 3 .cse2)) (and .cse5 (<= 12 .cse2) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 26)) (and .cse0 .cse12 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 78) (<= 38 .cse2)) (and (<= |ULTIMATE.start_main_~j~0#1| 180) .cse0 .cse18 .cse1 (<= 89 .cse2)) (and .cse0 .cse1 (<= 25 .cse2) .cse22 (<= |ULTIMATE.start_main_~j~0#1| 52)) (and (<= |ULTIMATE.start_main_~j~0#1| 128) .cse0 (< .cse3 2147483590) .cse1 (<= 63 .cse2)) (and (<= 99 .cse2) .cse0 .cse1 (< .cse3 2147483470)) (and (<= |ULTIMATE.start_main_~j~0#1| 68) .cse14 (<= 33 .cse2) .cse0 .cse1) (and (<= 39 .cse2) .cse0 .cse20 (<= |ULTIMATE.start_main_~j~0#1| 80) .cse1) (and (< .cse3 2147483464) (<= 96 .cse2) .cse0 .cse1) (and (<= 85 .cse2) .cse15 .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 172)) (and .cse0 (< .cse3 2147483582) (<= 59 .cse2) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 120)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 54) (<= 26 .cse2) .cse23)))) [2023-02-18 23:04:52,486 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2023-02-18 23:04:52,486 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 29) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-02-18 23:04:52,487 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-02-18 23:04:52,488 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2023-02-18 23:04:52,490 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1] [2023-02-18 23:04:52,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:04:52,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:04:52 BoogieIcfgContainer [2023-02-18 23:04:52,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:04:52,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:04:52,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:04:52,555 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:04:52,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:03:38" (3/4) ... [2023-02-18 23:04:52,558 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 23:04:52,576 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-18 23:04:52,577 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-18 23:04:52,577 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 23:04:52,577 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 23:04:52,629 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 23:04:52,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:04:52,630 INFO L158 Benchmark]: Toolchain (without parser) took 74925.51ms. Allocated memory was 130.0MB in the beginning and 931.1MB in the end (delta: 801.1MB). Free memory was 95.5MB in the beginning and 724.6MB in the end (delta: -629.2MB). Peak memory consumption was 173.8MB. Max. memory is 16.1GB. [2023-02-18 23:04:52,630 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:04:52,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.02ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 85.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 23:04:52,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.82ms. Allocated memory is still 130.0MB. Free memory was 85.3MB in the beginning and 84.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:04:52,631 INFO L158 Benchmark]: Boogie Preprocessor took 10.90ms. Allocated memory is still 130.0MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:04:52,631 INFO L158 Benchmark]: RCFGBuilder took 177.97ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 73.8MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 23:04:52,632 INFO L158 Benchmark]: TraceAbstraction took 74507.08ms. Allocated memory was 130.0MB in the beginning and 931.1MB in the end (delta: 801.1MB). Free memory was 73.1MB in the beginning and 727.8MB in the end (delta: -654.7MB). Peak memory consumption was 148.6MB. Max. memory is 16.1GB. [2023-02-18 23:04:52,633 INFO L158 Benchmark]: Witness Printer took 74.59ms. Allocated memory is still 931.1MB. Free memory was 727.8MB in the beginning and 724.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:04:52,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.02ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 85.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.82ms. Allocated memory is still 130.0MB. Free memory was 85.3MB in the beginning and 84.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.90ms. Allocated memory is still 130.0MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 177.97ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 73.8MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 74507.08ms. Allocated memory was 130.0MB in the beginning and 931.1MB in the end (delta: 801.1MB). Free memory was 73.1MB in the beginning and 727.8MB in the end (delta: -654.7MB). Peak memory consumption was 148.6MB. Max. memory is 16.1GB. * Witness Printer took 74.59ms. Allocated memory is still 931.1MB. Free memory was 727.8MB in the beginning and 724.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 74.4s, OverallIterations: 12, TraceHistogramMax: 191, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 2192 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2009 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4656 IncrementalHoareTripleChecker+Invalid, 4665 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 183 mSDtfsCounter, 4656 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3282 GetRequests, 2230 SyntacticMatches, 183 SemanticMatches, 869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63756 ImplicationChecksByTransitivity, 53.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=957occurred in iteration=11, InterpolantAutomatonStates: 599, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 2176 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 59.8s InterpolantComputationTime, 3793 NumberOfCodeBlocks, 3793 NumberOfCodeBlocksAsserted, 171 NumberOfCheckSat, 4689 ConstructedInterpolants, 0 QuantifiedInterpolants, 15461 SizeOfPredicates, 107 NumberOfNonLiveVariables, 4261 ConjunctsInSsa, 391 ConjunctsInUnsatCore, 25 InterpolantComputations, 6 PerfectInterpolantSequences, 90350/267608 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 <= j + 2147483648 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((j <= 0 && i <= 0) && 0 <= i) && i <= 99) && 0 <= j + 2147483648) || ((((0 <= i && 0 <= j + 2147483648) && 56 <= i + -1) && j <= 114) && j + 2 < 2147483576)) || ((((j + 2 < 2147483572 && 54 <= i + -1) && 0 <= i) && 0 <= j + 2147483648) && j <= 110)) || ((((j + 2 < 2147483646 && 0 <= i) && 0 <= j + 2147483648) && 91 <= i + -1) && j <= 184)) || ((((j + 2 < 2147483602 && j <= 140) && 0 <= i) && 69 <= i + -1) && 0 <= j + 2147483648)) || (((j + 2 < 2147483468 && 0 <= i) && 0 <= j + 2147483648) && 98 <= i + -1)) || ((((j + 2 < 2147483632 && 36 <= i + -1) && 0 <= i) && 0 <= j + 2147483648) && j <= 74)) || ((((j <= 42 && 20 <= i + -1) && 0 <= i) && 2 + j <= 2147483647) && 0 <= j + 2147483648)) || ((((j + 2 < 2147483566 && j <= 104) && 0 <= i) && 0 <= j + 2147483648) && 51 <= i + -1)) || ((((0 <= i && j + 2 < 2147483616) && 0 <= j + 2147483648) && j <= 154) && 76 <= i + -1)) || ((((0 <= i && j + 2 < 2147483578) && 0 <= j + 2147483648) && j <= 116) && 57 <= i + -1)) || ((((j + 2 < 2147483592 && 0 <= i) && 0 <= j + 2147483648) && j <= 130) && 64 <= i + -1)) || ((((0 <= i && 0 <= j + 2147483648) && j <= 60) && j + 2 < 2147483618) && 29 <= i + -1)) || (((0 <= i && 0 <= j + 2147483648) && j + 2 < 2147483466) && 97 <= i + -1)) || ((((4 <= i + -1 && 0 <= i) && j + 2 < 2147483640) && 0 <= j + 2147483648) && j <= 10)) || ((((0 <= i && 34 <= i + -1) && j + 2 < 2147483628) && j <= 70) && 0 <= j + 2147483648)) || ((((j <= 112 && 55 <= i + -1) && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483574)) || ((((0 <= i && 77 <= i + -1) && 0 <= j + 2147483648) && j + 2 < 2147483618) && j <= 156)) || ((((j <= 134 && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483596) && 66 <= i + -1)) || ((((j + 2 < 2147483614 && 27 <= i + -1) && 0 <= i) && j <= 56) && 0 <= j + 2147483648)) || ((((j <= 100 && 0 <= i) && 0 <= j + 2147483648) && 49 <= i + -1) && j + 2 < 2147483562)) || ((((j + 2 < 2147483632 && 0 <= i) && 0 <= j + 2147483648) && j <= 170) && 84 <= i + -1)) || ((((0 <= i && j <= 126) && 0 <= j + 2147483648) && 62 <= i + -1) && j + 2 < 2147483588)) || ((((j + 2 < 2147483556 && 0 <= i) && j <= 94) && 46 <= i + -1) && 0 <= j + 2147483648)) || ((((j <= 174 && 0 <= i) && j + 2 < 2147483636) && 0 <= j + 2147483648) && 86 <= i + -1)) || ((((j + 2 < 2147483646 && 43 <= i + -1) && 0 <= i) && 0 <= j + 2147483648) && j <= 88)) || ((((0 <= i && 2 + j <= 2147483647) && 92 <= i + -1) && 0 <= j + 2147483648) && j <= 186)) || ((((23 <= i + -1 && 0 <= i) && 0 <= j + 2147483648) && j <= 48) && j + 2 < 2147483606)) || ((((j + 2 < 2147483626 && 0 <= i) && j <= 164) && 81 <= i + -1) && 0 <= j + 2147483648)) || ((((j <= 76 && j + 2 < 2147483634) && 0 <= i) && 0 <= j + 2147483648) && 37 <= i + -1)) || ((((j + 2 < 2147483586 && 0 <= i) && 0 <= j + 2147483648) && 61 <= i + -1) && j <= 124)) || ((((0 <= i && j + 2 < 2147483624) && 0 <= j + 2147483648) && j <= 66) && 32 <= i + -1)) || ((((16 <= i + -1 && 0 <= i) && j + 2 < 2147483640) && 0 <= j + 2147483648) && j <= 34)) || (((0 <= i && 0 <= j + 2147483648) && 94 <= i + -1) && j + 2 < 2147483460)) || ((((14 <= i + -1 && 0 <= i) && j <= 30) && j + 2 < 2147483636) && 0 <= j + 2147483648)) || ((((0 <= i && j <= 24) && 0 <= j + 2147483648) && 11 <= i + -1) && j + 2 < 2147483630)) || ((((0 <= i && 2 + j <= 2147483647) && 0 <= j + 2147483648) && 2 <= i + -1) && j <= 6)) || ((((j <= 72 && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483630) && 35 <= i + -1)) || ((((0 <= i && 17 <= i + -1) && j + 2 < 2147483642) && 0 <= j + 2147483648) && j <= 36)) || ((((j <= 40 && j + 2 < 2147483646) && 0 <= i) && 0 <= j + 2147483648) && 19 <= i + -1)) || ((((0 <= i && 2 + j <= 2147483647) && 0 <= j + 2147483648) && 44 <= i + -1) && j <= 90)) || ((((j <= 96 && 0 <= i) && 0 <= j + 2147483648) && 47 <= i + -1) && j + 2 < 2147483558)) || ((((0 <= i && j + 2 < 2147483640) && 0 <= j + 2147483648) && j <= 178) && 88 <= i + -1)) || ((((0 <= i && 50 <= i + -1) && 0 <= j + 2147483648) && j + 2 < 2147483564) && j <= 102)) || ((((j + 2 < 2147483622 && 0 <= i) && 0 <= j + 2147483648) && 79 <= i + -1) && j <= 160)) || (((j <= 188 && 0 <= i) && 0 <= j + 2147483648) && 93 <= i + -1)) || ((((j <= 138 && 0 <= i) && 68 <= i + -1) && 0 <= j + 2147483648) && j + 2 < 2147483600)) || ((((48 <= i + -1 && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483560) && j <= 98)) || ((((15 <= i + -1 && j <= 32) && 0 <= i) && j + 2 < 2147483638) && 0 <= j + 2147483648)) || ((((j + 2 < 2147483644 && j <= 14) && 0 <= i) && 0 <= j + 2147483648) && 6 <= i + -1)) || ((((0 <= i && j <= 148) && 73 <= i + -1) && 0 <= j + 2147483648) && j + 2 < 2147483610)) || ((((j + 2 < 2147483634 && 0 <= i) && j <= 28) && 0 <= j + 2147483648) && 13 <= i + -1)) || ((((j <= 58 && 0 <= i) && j + 2 < 2147483616) && 28 <= i + -1) && 0 <= j + 2147483648)) || ((((j + 2 < 2147483644 && 42 <= i + -1) && 0 <= i) && 0 <= j + 2147483648) && j <= 86)) || ((((j + 2 < 2147483644 && 18 <= i + -1) && 0 <= i) && j <= 38) && 0 <= j + 2147483648)) || ((((74 <= i + -1 && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483612) && j <= 150)) || ((((5 <= i + -1 && 0 <= i) && j + 2 < 2147483642) && 0 <= j + 2147483648) && j <= 12)) || ((((j + 2 < 2147483620 && 0 <= i) && j <= 62) && 30 <= i + -1) && 0 <= j + 2147483648)) || ((((0 <= i && j + 2 < 2147483640) && 0 <= j + 2147483648) && j <= 82) && 40 <= i + -1)) || ((((j <= 176 && 0 <= i) && j + 2 < 2147483638) && 87 <= i + -1) && 0 <= j + 2147483648)) || ((((41 <= i + -1 && 0 <= i) && j <= 84) && j + 2 < 2147483642) && 0 <= j + 2147483648)) || ((((j + 2 < 2147483614 && j <= 152) && 0 <= i) && 0 <= j + 2147483648) && 75 <= i + -1)) || ((((83 <= i + -1 && 0 <= i) && 0 <= j + 2147483648) && j <= 168) && j + 2 < 2147483630)) || ((((80 <= i + -1 && 0 <= i) && j + 2 < 2147483624) && 0 <= j + 2147483648) && j <= 162)) || ((((0 <= i && j <= 22) && 10 <= i + -1) && j + 2 < 2147483628) && 0 <= j + 2147483648)) || ((((j + 2 < 2147483608 && 72 <= i + -1) && 0 <= i) && j <= 146) && 0 <= j + 2147483648)) || ((((22 <= i + -1 && 0 <= i) && j <= 46) && 0 <= j + 2147483648) && j + 2 < 2147483604)) || ((((j + 2 < 2147483620 && 0 <= i) && 0 <= j + 2147483648) && j <= 158) && 78 <= i + -1)) || ((((0 <= i && 2 + j <= 2147483647) && 0 <= j + 2147483648) && 8 <= i + -1) && j <= 18)) || ((((j + 2 < 2147483646 && 0 <= i) && j <= 16) && 0 <= j + 2147483648) && 7 <= i + -1)) || (((0 <= i && 0 <= i + -1) && 0 <= j + 2147483648) && j <= 2)) || ((((52 <= i + -1 && 0 <= i) && j + 2 < 2147483568) && j <= 106) && 0 <= j + 2147483648)) || ((((90 <= i + -1 && j + 2 < 2147483644) && 0 <= i) && j <= 182) && 0 <= j + 2147483648)) || ((((67 <= i + -1 && 0 <= i) && j + 2 < 2147483598) && 0 <= j + 2147483648) && j <= 136)) || ((((1 <= i + -1 && j + 2 < 2147483646) && 0 <= i) && 0 <= j + 2147483648) && j <= 4)) || ((((j + 2 < 2147483608 && 0 <= i) && 24 <= i + -1) && 0 <= j + 2147483648) && j <= 50)) || ((((j <= 132 && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483594) && 65 <= i + -1)) || ((((j + 2 < 2147483622 && 31 <= i + -1) && 0 <= i) && j <= 64) && 0 <= j + 2147483648)) || (((45 <= i + -1 && 0 <= i) && j <= 92) && 0 <= j + 2147483648)) || (((0 <= i && 0 <= j + 2147483648) && j + 2 < 2147483462) && 95 <= i + -1)) || (((0 <= i && 0 <= j + 2147483648) && j <= 20) && 9 <= i + -1)) || ((((j <= 142 && 70 <= i + -1) && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483604)) || (((0 <= i && 0 <= j + 2147483648) && 21 <= i + -1) && j <= 44)) || ((((0 <= i && j <= 144) && 0 <= j + 2147483648) && j + 2 < 2147483606) && 71 <= i + -1)) || ((((0 <= i && 58 <= i + -1) && 0 <= j + 2147483648) && j <= 118) && j + 2 < 2147483580)) || ((((j <= 166 && 0 <= i) && j + 2 < 2147483628) && 0 <= j + 2147483648) && 82 <= i + -1)) || ((((53 <= i + -1 && 0 <= i) && j + 2 < 2147483570) && 0 <= j + 2147483648) && j <= 108)) || ((((0 <= i && 60 <= i + -1) && 0 <= j + 2147483648) && j <= 122) && j + 2 < 2147483584)) || (((j <= 8 && 0 <= i) && 0 <= j + 2147483648) && 3 <= i + -1)) || ((((j + 2 < 2147483632 && 12 <= i + -1) && 0 <= i) && 0 <= j + 2147483648) && j <= 26)) || ((((0 <= i && j + 2 < 2147483636) && 0 <= j + 2147483648) && j <= 78) && 38 <= i + -1)) || ((((j <= 180 && 0 <= i) && j + 2 < 2147483642) && 0 <= j + 2147483648) && 89 <= i + -1)) || ((((0 <= i && 0 <= j + 2147483648) && 25 <= i + -1) && j + 2 < 2147483610) && j <= 52)) || ((((j <= 128 && 0 <= i) && j + 2 < 2147483590) && 0 <= j + 2147483648) && 63 <= i + -1)) || (((99 <= i + -1 && 0 <= i) && 0 <= j + 2147483648) && j + 2 < 2147483470)) || ((((j <= 68 && j + 2 < 2147483626) && 33 <= i + -1) && 0 <= i) && 0 <= j + 2147483648)) || ((((39 <= i + -1 && 0 <= i) && j + 2 < 2147483638) && j <= 80) && 0 <= j + 2147483648)) || (((j + 2 < 2147483464 && 96 <= i + -1) && 0 <= i) && 0 <= j + 2147483648)) || ((((85 <= i + -1 && j + 2 < 2147483634) && 0 <= i) && 0 <= j + 2147483648) && j <= 172)) || ((((0 <= i && j + 2 < 2147483582) && 59 <= i + -1) && 0 <= j + 2147483648) && j <= 120)) || ((((0 <= i && 0 <= j + 2147483648) && j <= 54) && 26 <= i + -1) && j + 2 < 2147483612) RESULT: Ultimate proved your program to be correct! [2023-02-18 23:04:52,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE