./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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/benchmark13_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 cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:16:53,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:16:53,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:16:53,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:16:53,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:16:53,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:16:53,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:16:53,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:16:53,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:16:53,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:16:53,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:16:53,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:16:53,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:16:53,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:16:53,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:16:53,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:16:53,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:16:53,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:16:53,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:16:53,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:16:53,197 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:16:53,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:16:53,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:16:53,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:16:53,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:16:53,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:16:53,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:16:53,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:16:53,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:16:53,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:16:53,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:16:53,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:16:53,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:16:53,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:16:53,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:16:53,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:16:53,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:16:53,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:16:53,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:16:53,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:16:53,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:16:53,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:16:53,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:16:53,222 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:16:53,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:16:53,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:16:53,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:16:53,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:16:53,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:16:53,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:16:53,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:16:53,224 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:16:53,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:16:53,224 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:16:53,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:16:53,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:16:53,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:16:53,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:16:53,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:16:53,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:16:53,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:16:53,225 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:16:53,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:16:53,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:16:53,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:16:53,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:16:53,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:16:53,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:16:53,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:16:53,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:16:53,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:16:53,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:16:53,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:16:53,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:16:53,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:16:53,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:16:53,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 [2022-07-13 02:16:53,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:16:53,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:16:53,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:16:53,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:16:53,452 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:16:53,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2022-07-13 02:16:53,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11113cfa0/092ca8a1ce4b4c2e8dcf21292f3ec3b4/FLAG6cf5b2020 [2022-07-13 02:16:53,816 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:16:53,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2022-07-13 02:16:53,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11113cfa0/092ca8a1ce4b4c2e8dcf21292f3ec3b4/FLAG6cf5b2020 [2022-07-13 02:16:53,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11113cfa0/092ca8a1ce4b4c2e8dcf21292f3ec3b4 [2022-07-13 02:16:53,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:16:53,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:16:53,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:16:53,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:16:53,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:16:53,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:53,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89bb862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53, skipping insertion in model container [2022-07-13 02:16:53,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:53,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:16:53,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:16:53,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i[873,886] [2022-07-13 02:16:53,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:16:53,970 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:16:53,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i[873,886] [2022-07-13 02:16:53,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:16:53,992 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:16:53,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53 WrapperNode [2022-07-13 02:16:53,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:16:53,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:16:53,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:16:53,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:16:53,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,012 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2022-07-13 02:16:54,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:16:54,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:16:54,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:16:54,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:16:54,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:16:54,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:16:54,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:16:54,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:16:54,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (1/1) ... [2022-07-13 02:16:54,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:16:54,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:54,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 02:16:54,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 02:16:54,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:16:54,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:16:54,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:16:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:16:54,137 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:16:54,138 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:16:54,250 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:16:54,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:16:54,254 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:16:54,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:54 BoogieIcfgContainer [2022-07-13 02:16:54,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:16:54,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:16:54,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:16:54,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:16:54,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:16:53" (1/3) ... [2022-07-13 02:16:54,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537fa774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:16:54, skipping insertion in model container [2022-07-13 02:16:54,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:53" (2/3) ... [2022-07-13 02:16:54,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537fa774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:16:54, skipping insertion in model container [2022-07-13 02:16:54,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:54" (3/3) ... [2022-07-13 02:16:54,260 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark13_conjunctive.i [2022-07-13 02:16:54,269 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:16:54,269 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-13 02:16:54,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:16:54,316 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7916eb1b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@64de7799 [2022-07-13 02:16:54,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-13 02:16:54,318 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) [2022-07-13 02:16:54,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:16:54,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:54,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:16:54,331 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)] === [2022-07-13 02:16:54,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:54,335 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-07-13 02:16:54,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:54,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814680051] [2022-07-13 02:16:54,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:54,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:54,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:54,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814680051] [2022-07-13 02:16:54,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814680051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:54,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:54,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:16:54,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621997461] [2022-07-13 02:16:54,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:54,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:16:54,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:54,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:16:54,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:16:54,514 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:54,586 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-07-13 02:16:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:16:54,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-13 02:16:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:54,592 INFO L225 Difference]: With dead ends: 35 [2022-07-13 02:16:54,592 INFO L226 Difference]: Without dead ends: 16 [2022-07-13 02:16:54,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:16:54,596 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:54,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 40 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:16:54,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-13 02:16:54,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-07-13 02:16:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) 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) [2022-07-13 02:16:54,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-07-13 02:16:54,618 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2022-07-13 02:16:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:54,618 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-07-13 02:16:54,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-07-13 02:16:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:16:54,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:54,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:16:54,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:16:54,620 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)] === [2022-07-13 02:16:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-07-13 02:16:54,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:54,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137496480] [2022-07-13 02:16:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:54,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:54,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:54,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:54,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137496480] [2022-07-13 02:16:54,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137496480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:54,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:54,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:16:54,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837044166] [2022-07-13 02:16:54,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:54,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:16:54,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:16:54,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:16:54,667 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:54,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:54,684 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-07-13 02:16:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:16:54,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-13 02:16:54,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:54,685 INFO L225 Difference]: With dead ends: 14 [2022-07-13 02:16:54,685 INFO L226 Difference]: Without dead ends: 13 [2022-07-13 02:16:54,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:16:54,687 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:54,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-07-13 02:16:54,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-13 02:16:54,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) 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) [2022-07-13 02:16:54,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-07-13 02:16:54,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2022-07-13 02:16:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:54,690 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-07-13 02:16:54,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-07-13 02:16:54,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:16:54,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:54,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:54,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:16:54,694 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)] === [2022-07-13 02:16:54,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:54,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-07-13 02:16:54,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:54,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050176148] [2022-07-13 02:16:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:54,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:54,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:54,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050176148] [2022-07-13 02:16:54,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050176148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:54,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:54,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:16:54,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297725895] [2022-07-13 02:16:54,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:54,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:16:54,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:54,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:16:54,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:16:54,718 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:54,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:54,726 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-07-13 02:16:54,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:16:54,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 02:16:54,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:54,727 INFO L225 Difference]: With dead ends: 17 [2022-07-13 02:16:54,727 INFO L226 Difference]: Without dead ends: 16 [2022-07-13 02:16:54,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:16:54,728 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:54,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:54,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-13 02:16:54,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-07-13 02:16:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) 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) [2022-07-13 02:16:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-07-13 02:16:54,731 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2022-07-13 02:16:54,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:54,731 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-07-13 02:16:54,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-07-13 02:16:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:16:54,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:54,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:54,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:16:54,732 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)] === [2022-07-13 02:16:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-07-13 02:16:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:54,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687833402] [2022-07-13 02:16:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:54,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:54,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:54,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687833402] [2022-07-13 02:16:54,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687833402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:54,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:54,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:16:54,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004635966] [2022-07-13 02:16:54,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:54,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:16:54,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:54,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:16:54,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:16:54,761 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-07-13 02:16:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:54,770 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-07-13 02:16:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:16:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2022-07-13 02:16:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:54,772 INFO L225 Difference]: With dead ends: 15 [2022-07-13 02:16:54,772 INFO L226 Difference]: Without dead ends: 14 [2022-07-13 02:16:54,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:16:54,774 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:54,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:54,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-13 02:16:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-13 02:16:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) 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) [2022-07-13 02:16:54,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-07-13 02:16:54,785 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2022-07-13 02:16:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:54,785 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-07-13 02:16:54,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-07-13 02:16:54,785 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-07-13 02:16:54,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:16:54,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:54,786 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:54,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:16:54,786 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:16:54,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:54,787 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2022-07-13 02:16:54,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:54,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300761885] [2022-07-13 02:16:54,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:54,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:54,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:54,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300761885] [2022-07-13 02:16:54,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300761885] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:54,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672734186] [2022-07-13 02:16:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:54,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:54,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:54,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:16:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:54,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:16:54,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:54,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:55,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672734186] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:55,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:55,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-13 02:16:55,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65751705] [2022-07-13 02:16:55,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:55,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:16:55,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:55,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:16:55,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:16:55,034 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:55,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:55,109 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-07-13 02:16:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:16:55,109 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-13 02:16:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:55,110 INFO L225 Difference]: With dead ends: 31 [2022-07-13 02:16:55,110 INFO L226 Difference]: Without dead ends: 30 [2022-07-13 02:16:55,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:16:55,111 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:55,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 31 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:55,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-13 02:16:55,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2022-07-13 02:16:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-07-13 02:16:55,121 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2022-07-13 02:16:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:55,122 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-07-13 02:16:55,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-07-13 02:16:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:16:55,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:55,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:55,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 02:16:55,339 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 [2022-07-13 02:16:55,340 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:16:55,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:55,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1588880781, now seen corresponding path program 1 times [2022-07-13 02:16:55,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:55,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549694483] [2022-07-13 02:16:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:55,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:55,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:55,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549694483] [2022-07-13 02:16:55,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549694483] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:55,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970030508] [2022-07-13 02:16:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:55,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:55,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:55,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:55,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:16:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:55,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:16:55,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:55,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:55,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970030508] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:55,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:55,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-13 02:16:55,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737879970] [2022-07-13 02:16:55,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:55,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:16:55,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:55,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:16:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:16:55,475 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:55,491 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-07-13 02:16:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:16:55,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 02:16:55,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:55,492 INFO L225 Difference]: With dead ends: 30 [2022-07-13 02:16:55,493 INFO L226 Difference]: Without dead ends: 29 [2022-07-13 02:16:55,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:16:55,493 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:55,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-13 02:16:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-13 02:16:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-07-13 02:16:55,501 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 12 [2022-07-13 02:16:55,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:55,502 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-07-13 02:16:55,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:55,502 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-07-13 02:16:55,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 02:16:55,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:55,504 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-13 02:16:55,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 02:16:55,705 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,SelfDestructingSolverStorable5 [2022-07-13 02:16:55,705 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:16:55,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:55,706 INFO L85 PathProgramCache]: Analyzing trace with hash 584006821, now seen corresponding path program 2 times [2022-07-13 02:16:55,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:55,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63852812] [2022-07-13 02:16:55,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:55,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:55,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:55,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63852812] [2022-07-13 02:16:55,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63852812] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:55,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340663850] [2022-07-13 02:16:55,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:16:55,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:55,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:55,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:55,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:16:55,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:16:55,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:16:55,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 02:16:55,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:55,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:56,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340663850] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:56,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:56,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-07-13 02:16:56,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27136172] [2022-07-13 02:16:56,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:56,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 02:16:56,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:56,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 02:16:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-07-13 02:16:56,055 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:56,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:56,177 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2022-07-13 02:16:56,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 02:16:56,177 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 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 25 [2022-07-13 02:16:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:56,178 INFO L225 Difference]: With dead ends: 64 [2022-07-13 02:16:56,178 INFO L226 Difference]: Without dead ends: 63 [2022-07-13 02:16:56,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-07-13 02:16:56,179 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 71 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:56,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 55 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-13 02:16:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2022-07-13 02:16:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 56 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2022-07-13 02:16:56,184 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 25 [2022-07-13 02:16:56,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:56,185 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2022-07-13 02:16:56,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:56,185 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2022-07-13 02:16:56,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-13 02:16:56,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:56,186 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-07-13 02:16:56,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-13 02:16:56,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:56,400 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:16:56,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1410159193, now seen corresponding path program 2 times [2022-07-13 02:16:56,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:56,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388829840] [2022-07-13 02:16:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:56,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:56,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:56,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388829840] [2022-07-13 02:16:56,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388829840] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:56,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624964505] [2022-07-13 02:16:56,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:16:56,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:56,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:56,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:56,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:16:56,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:16:56,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:16:56,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:16:56,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:56,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:56,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624964505] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:56,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:56,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-13 02:16:56,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107035071] [2022-07-13 02:16:56,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:56,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:16:56,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:56,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:16:56,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:16:56,554 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:56,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:56,578 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2022-07-13 02:16:56,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:16:56,579 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-07-13 02:16:56,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:56,579 INFO L225 Difference]: With dead ends: 60 [2022-07-13 02:16:56,579 INFO L226 Difference]: Without dead ends: 59 [2022-07-13 02:16:56,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:16:56,580 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:56,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 48 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:56,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-07-13 02:16:56,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-07-13 02:16:56,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 58 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-07-13 02:16:56,585 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 27 [2022-07-13 02:16:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:56,585 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-07-13 02:16:56,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:56,586 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-07-13 02:16:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-13 02:16:56,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:56,586 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-07-13 02:16:56,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:16:56,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:56,802 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:16:56,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:56,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1562182875, now seen corresponding path program 3 times [2022-07-13 02:16:56,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:56,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238286745] [2022-07-13 02:16:56,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:56,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:57,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238286745] [2022-07-13 02:16:57,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238286745] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172828991] [2022-07-13 02:16:57,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:16:57,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:57,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:57,058 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:57,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:16:57,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-13 02:16:57,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:16:57,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-13 02:16:57,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:57,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:57,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172828991] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:57,561 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:57,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-07-13 02:16:57,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945149251] [2022-07-13 02:16:57,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:57,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-07-13 02:16:57,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:57,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-07-13 02:16:57,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-07-13 02:16:57,565 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:57,916 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2022-07-13 02:16:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-07-13 02:16:57,917 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 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 55 [2022-07-13 02:16:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:57,918 INFO L225 Difference]: With dead ends: 130 [2022-07-13 02:16:57,918 INFO L226 Difference]: Without dead ends: 129 [2022-07-13 02:16:57,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-07-13 02:16:57,920 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 182 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:57,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 105 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:16:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-07-13 02:16:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 117. [2022-07-13 02:16:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.1130434782608696) internal successors, (128), 116 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2022-07-13 02:16:57,936 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 128 transitions. Word has length 55 [2022-07-13 02:16:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:57,938 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 128 transitions. [2022-07-13 02:16:57,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 128 transitions. [2022-07-13 02:16:57,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-13 02:16:57,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:57,940 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-07-13 02:16:57,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:16:58,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:58,156 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:16:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:58,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1980812327, now seen corresponding path program 3 times [2022-07-13 02:16:58,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:58,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219919171] [2022-07-13 02:16:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:58,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:58,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219919171] [2022-07-13 02:16:58,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219919171] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441579695] [2022-07-13 02:16:58,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:16:58,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:58,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:58,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:58,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:16:58,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-13 02:16:58,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:16:58,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:16:58,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:58,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:58,479 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:58,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441579695] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:58,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:58,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-13 02:16:58,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146562560] [2022-07-13 02:16:58,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:58,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 02:16:58,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:58,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 02:16:58,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:16:58,482 INFO L87 Difference]: Start difference. First operand 117 states and 128 transitions. Second operand has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:58,528 INFO L93 Difference]: Finished difference Result 120 states and 131 transitions. [2022-07-13 02:16:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 02:16:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 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 57 [2022-07-13 02:16:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:58,529 INFO L225 Difference]: With dead ends: 120 [2022-07-13 02:16:58,530 INFO L226 Difference]: Without dead ends: 119 [2022-07-13 02:16:58,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:16:58,530 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 22 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:58,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 84 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:16:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-13 02:16:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-07-13 02:16:58,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 117 states have (on average 1.017094017094017) internal successors, (119), 118 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:58,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2022-07-13 02:16:58,537 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 57 [2022-07-13 02:16:58,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:58,537 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2022-07-13 02:16:58,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:16:58,537 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2022-07-13 02:16:58,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 02:16:58,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:58,538 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-07-13 02:16:58,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:16:58,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:58,752 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:16:58,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:58,752 INFO L85 PathProgramCache]: Analyzing trace with hash 708663333, now seen corresponding path program 4 times [2022-07-13 02:16:58,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:58,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834232284] [2022-07-13 02:16:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:58,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:59,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:59,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834232284] [2022-07-13 02:16:59,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834232284] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:59,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229675389] [2022-07-13 02:16:59,386 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:16:59,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:59,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:59,388 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:59,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:16:59,434 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:16:59,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:16:59,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 47 conjunts are in the unsatisfiable core [2022-07-13 02:16:59,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:16:59,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:17:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:00,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229675389] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:17:00,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:17:00,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-07-13 02:17:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170769682] [2022-07-13 02:17:00,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:17:00,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-07-13 02:17:00,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:17:00,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-07-13 02:17:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-07-13 02:17:00,939 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:17:01,956 INFO L93 Difference]: Finished difference Result 262 states and 285 transitions. [2022-07-13 02:17:01,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-07-13 02:17:01,957 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 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 115 [2022-07-13 02:17:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:17:01,958 INFO L225 Difference]: With dead ends: 262 [2022-07-13 02:17:01,959 INFO L226 Difference]: Without dead ends: 261 [2022-07-13 02:17:01,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-07-13 02:17:01,964 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 530 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:17:01,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 165 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:17:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-13 02:17:02,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 237. [2022-07-13 02:17:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 235 states have (on average 1.1063829787234043) internal successors, (260), 236 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 260 transitions. [2022-07-13 02:17:02,006 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 260 transitions. Word has length 115 [2022-07-13 02:17:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:17:02,006 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 260 transitions. [2022-07-13 02:17:02,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:02,007 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 260 transitions. [2022-07-13 02:17:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-13 02:17:02,009 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:17:02,009 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-07-13 02:17:02,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:17:02,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:17:02,226 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:17:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:17:02,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1874335449, now seen corresponding path program 4 times [2022-07-13 02:17:02,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:17:02,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98702469] [2022-07-13 02:17:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:17:02,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:17:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:17:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:02,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:17:02,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98702469] [2022-07-13 02:17:02,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98702469] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:17:02,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85819146] [2022-07-13 02:17:02,422 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:17:02,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:17:02,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:17:02,423 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:17:02,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 02:17:02,467 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:17:02,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:17:02,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 02:17:02,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:17:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:02,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:17:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:03,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85819146] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:17:03,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:17:03,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-13 02:17:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82193062] [2022-07-13 02:17:03,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:17:03,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 02:17:03,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:17:03,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 02:17:03,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:17:03,074 INFO L87 Difference]: Start difference. First operand 237 states and 260 transitions. Second operand has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:03,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:17:03,163 INFO L93 Difference]: Finished difference Result 240 states and 263 transitions. [2022-07-13 02:17:03,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-13 02:17:03,163 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 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 117 [2022-07-13 02:17:03,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:17:03,164 INFO L225 Difference]: With dead ends: 240 [2022-07-13 02:17:03,164 INFO L226 Difference]: Without dead ends: 239 [2022-07-13 02:17:03,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:17:03,166 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 69 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:17:03,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 158 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:17:03,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-07-13 02:17:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-07-13 02:17:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:03,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2022-07-13 02:17:03,172 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 117 [2022-07-13 02:17:03,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:17:03,172 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2022-07-13 02:17:03,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:03,173 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2022-07-13 02:17:03,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-13 02:17:03,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:17:03,177 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-07-13 02:17:03,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 02:17:03,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-13 02:17:03,394 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:17:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:17:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash -383938011, now seen corresponding path program 5 times [2022-07-13 02:17:03,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:17:03,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129032231] [2022-07-13 02:17:03,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:17:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:17:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:17:05,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:05,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:17:05,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129032231] [2022-07-13 02:17:05,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129032231] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:17:05,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338734849] [2022-07-13 02:17:05,039 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:17:05,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:17:05,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:17:05,040 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:17:05,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 02:17:05,168 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-13 02:17:05,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:17:05,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-13 02:17:05,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:17:05,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:05,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:17:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:09,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338734849] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:17:09,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:17:09,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-07-13 02:17:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133360129] [2022-07-13 02:17:09,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:17:09,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-07-13 02:17:09,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:17:09,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-07-13 02:17:09,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-07-13 02:17:09,162 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:17:12,302 INFO L93 Difference]: Finished difference Result 526 states and 573 transitions. [2022-07-13 02:17:12,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-07-13 02:17:12,303 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 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 235 [2022-07-13 02:17:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:17:12,307 INFO L225 Difference]: With dead ends: 526 [2022-07-13 02:17:12,307 INFO L226 Difference]: Without dead ends: 525 [2022-07-13 02:17:12,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-07-13 02:17:12,328 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1333 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:17:12,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 264 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:17:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-07-13 02:17:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 477. [2022-07-13 02:17:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 475 states have (on average 1.1031578947368421) internal successors, (524), 476 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:12,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 524 transitions. [2022-07-13 02:17:12,353 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 524 transitions. Word has length 235 [2022-07-13 02:17:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:17:12,353 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 524 transitions. [2022-07-13 02:17:12,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 524 transitions. [2022-07-13 02:17:12,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-13 02:17:12,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:17:12,355 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1] [2022-07-13 02:17:12,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 02:17:12,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-13 02:17:12,572 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:17:12,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:17:12,572 INFO L85 PathProgramCache]: Analyzing trace with hash 402760487, now seen corresponding path program 5 times [2022-07-13 02:17:12,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:17:12,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916564232] [2022-07-13 02:17:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:17:12,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:17:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:17:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:13,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:17:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916564232] [2022-07-13 02:17:13,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916564232] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:17:13,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110958912] [2022-07-13 02:17:13,372 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:17:13,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:17:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:17:13,373 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:17:13,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 02:17:13,519 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-13 02:17:13,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:17:13,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-13 02:17:13,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:17:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:13,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:17:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:15,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110958912] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:17:15,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:17:15,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-13 02:17:15,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058045993] [2022-07-13 02:17:15,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:17:15,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-13 02:17:15,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:17:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-13 02:17:15,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:17:15,805 INFO L87 Difference]: Start difference. First operand 477 states and 524 transitions. Second operand has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:16,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:17:16,039 INFO L93 Difference]: Finished difference Result 480 states and 527 transitions. [2022-07-13 02:17:16,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-13 02:17:16,040 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 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 237 [2022-07-13 02:17:16,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:17:16,041 INFO L225 Difference]: With dead ends: 480 [2022-07-13 02:17:16,041 INFO L226 Difference]: Without dead ends: 479 [2022-07-13 02:17:16,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:17:16,042 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 94 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:17:16,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 304 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:17:16,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-13 02:17:16,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2022-07-13 02:17:16,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 477 states have (on average 1.0041928721174005) internal successors, (479), 478 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 479 transitions. [2022-07-13 02:17:16,050 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 479 transitions. Word has length 237 [2022-07-13 02:17:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:17:16,051 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 479 transitions. [2022-07-13 02:17:16,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:17:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 479 transitions. [2022-07-13 02:17:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-07-13 02:17:16,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:17:16,055 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-07-13 02:17:16,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 02:17:16,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-13 02:17:16,271 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:17:16,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:17:16,272 INFO L85 PathProgramCache]: Analyzing trace with hash 311166501, now seen corresponding path program 6 times [2022-07-13 02:17:16,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:17:16,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403100953] [2022-07-13 02:17:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:17:16,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:17:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:17:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:23,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:17:23,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403100953] [2022-07-13 02:17:23,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403100953] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:17:23,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358397731] [2022-07-13 02:17:23,580 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:17:23,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:17:23,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:17:23,588 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:17:23,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 02:17:23,866 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-13 02:17:23,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:17:23,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 191 conjunts are in the unsatisfiable core [2022-07-13 02:17:23,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:17:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:24,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:17:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:17:42,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358397731] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:17:42,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:17:42,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2022-07-13 02:17:42,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408884845] [2022-07-13 02:17:42,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:17:42,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-07-13 02:17:42,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:17:42,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-07-13 02:17:42,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-07-13 02:17:42,703 INFO L87 Difference]: Start difference. First operand 479 states and 479 transitions. Second operand has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:18:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:18:01,047 INFO L93 Difference]: Finished difference Result 1054 states and 1149 transitions. [2022-07-13 02:18:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-07-13 02:18:01,048 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 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 475 [2022-07-13 02:18:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:18:01,051 INFO L225 Difference]: With dead ends: 1054 [2022-07-13 02:18:01,051 INFO L226 Difference]: Without dead ends: 1053 [2022-07-13 02:18:01,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1329 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 35.7s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2022-07-13 02:18:01,066 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2630 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:18:01,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 510 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:18:01,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-07-13 02:18:01,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 957. [2022-07-13 02:18:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 955 states have (on average 1.1015706806282723) internal successors, (1052), 956 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:18:01,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1052 transitions. [2022-07-13 02:18:01,082 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1052 transitions. Word has length 475 [2022-07-13 02:18:01,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:18:01,082 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1052 transitions. [2022-07-13 02:18:01,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:18:01,083 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1052 transitions. [2022-07-13 02:18:01,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-07-13 02:18:01,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:18:01,088 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1] [2022-07-13 02:18:01,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 02:18:01,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-13 02:18:01,305 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:18:01,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:18:01,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1616701657, now seen corresponding path program 6 times [2022-07-13 02:18:01,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:18:01,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815831182] [2022-07-13 02:18:01,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:18:01,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:18:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:18:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:18:03,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:18:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815831182] [2022-07-13 02:18:03,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815831182] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:18:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42192003] [2022-07-13 02:18:03,281 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:18:03,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:18:03,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:18:03,296 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:18:03,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 02:18:03,531 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-13 02:18:03,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:18:03,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-13 02:18:03,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:18:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:18:03,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:18:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:18:10,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42192003] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:18:10,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:18:10,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-13 02:18:10,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354621013] [2022-07-13 02:18:10,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:18:10,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-13 02:18:10,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:18:10,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-13 02:18:10,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:18:10,042 INFO L87 Difference]: Start difference. First operand 957 states and 1052 transitions. Second operand has 192 states, 191 states have (on average 4.984293193717278) internal successors, (952), 192 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:18:10,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:18:10,766 INFO L93 Difference]: Finished difference Result 960 states and 1055 transitions. [2022-07-13 02:18:10,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-13 02:18:10,767 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.984293193717278) internal successors, (952), 192 states have internal predecessors, (952), 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 477 [2022-07-13 02:18:10,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:18:10,772 INFO L225 Difference]: With dead ends: 960 [2022-07-13 02:18:10,772 INFO L226 Difference]: Without dead ends: 959 [2022-07-13 02:18:10,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:18:10,774 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 190 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:18:10,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 596 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:18:10,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-07-13 02:18:10,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2022-07-13 02:18:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 957 states have (on average 1.0020898641588296) internal successors, (959), 958 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:18:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 959 transitions. [2022-07-13 02:18:10,791 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 959 transitions. Word has length 477 [2022-07-13 02:18:10,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:18:10,791 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 959 transitions. [2022-07-13 02:18:10,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.984293193717278) internal successors, (952), 192 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:18:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 959 transitions. [2022-07-13 02:18:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-07-13 02:18:10,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:18:10,798 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1, 1, 1] [2022-07-13 02:18:10,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 02:18:11,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-13 02:18:11,015 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:18:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:18:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1814097445, now seen corresponding path program 7 times [2022-07-13 02:18:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:18:11,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077946920] [2022-07-13 02:18:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:18:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:18:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:18:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:18:39,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:18:39,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077946920] [2022-07-13 02:18:39,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077946920] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:18:39,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223339505] [2022-07-13 02:18:39,978 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-13 02:18:39,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:18:39,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:18:39,980 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:18:39,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 02:18:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:18:40,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 383 conjunts are in the unsatisfiable core [2022-07-13 02:18:40,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:18:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:18:41,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:19:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:19:39,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223339505] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:19:39,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:19:39,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 765 [2022-07-13 02:19:39,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453911828] [2022-07-13 02:19:39,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:19:39,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2022-07-13 02:19:39,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:19:39,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2022-07-13 02:19:39,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2022-07-13 02:19:39,703 INFO L87 Difference]: Start difference. First operand 959 states and 959 transitions. Second operand has 766 states, 765 states have (on average 2.4941176470588236) internal successors, (1908), 766 states have internal predecessors, (1908), 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)