./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/LogAG.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5317dae 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/termination-restricted-15/LogAG.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 68bdf78f6f996480ccfcf11b22cc3b7892db15596cae3edf06123d71c4506b1f --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:23:15,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:23:15,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:23:15,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:23:15,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:23:15,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:23:15,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:23:15,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:23:15,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:23:15,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:23:15,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:23:15,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:23:15,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:23:15,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:23:15,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:23:15,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:23:15,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:23:15,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:23:15,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:23:15,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:23:15,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:23:15,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:23:15,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:23:15,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:23:15,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:23:15,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:23:15,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:23:15,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:23:15,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:23:15,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:23:15,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:23:15,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:23:15,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:23:15,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:23:15,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:23:15,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:23:15,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:23:15,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:23:15,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:23:15,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:23:15,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:23:15,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-16 04:23:15,220 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:23:15,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:23:15,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:23:15,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:23:15,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 04:23:15,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 04:23:15,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:23:15,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:23:15,226 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:23:15,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:23:15,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:23:15,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:23:15,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:23:15,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 04:23:15,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 04:23:15,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 04:23:15,227 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 04:23:15,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:23:15,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 04:23:15,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 04:23:15,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:23:15,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 04:23:15,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 04:23:15,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 04:23:15,229 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 04:23:15,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 04:23:15,233 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 04:23:15,233 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68bdf78f6f996480ccfcf11b22cc3b7892db15596cae3edf06123d71c4506b1f [2023-02-16 04:23:15,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:23:15,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:23:15,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:23:15,513 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:23:15,514 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:23:15,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/LogAG.c [2023-02-16 04:23:16,684 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:23:16,857 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:23:16,858 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/LogAG.c [2023-02-16 04:23:16,863 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ddee704/d4e3580d9aaf4b40b6bec33361b8571c/FLAGb3e8ad394 [2023-02-16 04:23:16,878 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ddee704/d4e3580d9aaf4b40b6bec33361b8571c [2023-02-16 04:23:16,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:23:16,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:23:16,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:23:16,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:23:16,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:23:16,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:23:16" (1/1) ... [2023-02-16 04:23:16,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693e8185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:16, skipping insertion in model container [2023-02-16 04:23:16,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:23:16" (1/1) ... [2023-02-16 04:23:16,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:23:16,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:23:17,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:23:17,043 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:23:17,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:23:17,070 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:23:17,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17 WrapperNode [2023-02-16 04:23:17,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:23:17,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:23:17,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:23:17,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:23:17,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,097 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-02-16 04:23:17,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:23:17,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:23:17,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:23:17,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:23:17,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,113 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:23:17,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:23:17,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:23:17,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:23:17,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (1/1) ... [2023-02-16 04:23:17,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:23:17,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:17,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 04:23:17,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 04:23:17,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:23:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:23:17,250 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:23:17,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:23:17,393 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:23:17,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:23:17,398 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 04:23:17,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:23:17 BoogieIcfgContainer [2023-02-16 04:23:17,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:23:17,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 04:23:17,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 04:23:17,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 04:23:17,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:23:16" (1/3) ... [2023-02-16 04:23:17,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b49335b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:23:17, skipping insertion in model container [2023-02-16 04:23:17,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:23:17" (2/3) ... [2023-02-16 04:23:17,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b49335b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:23:17, skipping insertion in model container [2023-02-16 04:23:17,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:23:17" (3/3) ... [2023-02-16 04:23:17,407 INFO L112 eAbstractionObserver]: Analyzing ICFG LogAG.c [2023-02-16 04:23:17,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 04:23:17,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-02-16 04:23:17,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 04:23:17,526 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a3c1735, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 04:23:17,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-02-16 04:23:17,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:17,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-16 04:23:17,559 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:17,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-16 04:23:17,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:17,567 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-16 04:23:17,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:17,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92618364] [2023-02-16 04:23:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:17,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:17,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:17,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92618364] [2023-02-16 04:23:17,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92618364] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:17,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:17,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:23:17,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254637376] [2023-02-16 04:23:17,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:17,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:23:17,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:17,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:23:17,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:17,821 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:17,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:17,874 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2023-02-16 04:23:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:23:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-02-16 04:23:17,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:17,883 INFO L225 Difference]: With dead ends: 53 [2023-02-16 04:23:17,883 INFO L226 Difference]: Without dead ends: 23 [2023-02-16 04:23:17,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:17,891 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:17,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 33 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:17,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-16 04:23:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-16 04:23:17,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-16 04:23:17,928 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 4 [2023-02-16 04:23:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:17,929 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-16 04:23:17,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-16 04:23:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-16 04:23:17,930 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:17,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 04:23:17,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 04:23:17,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:17,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:17,934 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-16 04:23:17,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:17,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088110276] [2023-02-16 04:23:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:17,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:17,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088110276] [2023-02-16 04:23:17,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088110276] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:17,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:17,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:23:17,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533348723] [2023-02-16 04:23:17,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:17,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:23:17,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:17,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:23:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:17,990 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,001 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-16 04:23:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:23:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-16 04:23:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,003 INFO L225 Difference]: With dead ends: 23 [2023-02-16 04:23:18,003 INFO L226 Difference]: Without dead ends: 22 [2023-02-16 04:23:18,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,008 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 21 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-16 04:23:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-16 04:23:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-16 04:23:18,017 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 5 [2023-02-16 04:23:18,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,018 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-16 04:23:18,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-16 04:23:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-16 04:23:18,019 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 04:23:18,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629784, now seen corresponding path program 1 times [2023-02-16 04:23:18,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000102517] [2023-02-16 04:23:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000102517] [2023-02-16 04:23:18,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000102517] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:23:18,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869413499] [2023-02-16 04:23:18,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:23:18,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:23:18,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:23:18,090 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,142 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-02-16 04:23:18,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:23:18,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-16 04:23:18,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,144 INFO L225 Difference]: With dead ends: 33 [2023-02-16 04:23:18,145 INFO L226 Difference]: Without dead ends: 31 [2023-02-16 04:23:18,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:23:18,148 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-16 04:23:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2023-02-16 04:23:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.5625) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-02-16 04:23:18,158 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 7 [2023-02-16 04:23:18,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,159 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-02-16 04:23:18,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,159 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-02-16 04:23:18,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-16 04:23:18,160 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 04:23:18,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,161 INFO L85 PathProgramCache]: Analyzing trace with hash 294948525, now seen corresponding path program 1 times [2023-02-16 04:23:18,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306726081] [2023-02-16 04:23:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306726081] [2023-02-16 04:23:18,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306726081] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:23:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80048405] [2023-02-16 04:23:18,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:23:18,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:23:18,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,198 INFO L87 Difference]: Start difference. First operand 23 states and 25 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) [2023-02-16 04:23:18,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,213 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-02-16 04:23:18,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:23:18,213 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 [2023-02-16 04:23:18,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,214 INFO L225 Difference]: With dead ends: 26 [2023-02-16 04:23:18,214 INFO L226 Difference]: Without dead ends: 25 [2023-02-16 04:23:18,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,216 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-16 04:23:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2023-02-16 04:23:18,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.5) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-02-16 04:23:18,220 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2023-02-16 04:23:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,221 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-02-16 04:23:18,221 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) [2023-02-16 04:23:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-02-16 04:23:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-16 04:23:18,222 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 04:23:18,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash 294950095, now seen corresponding path program 1 times [2023-02-16 04:23:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15691703] [2023-02-16 04:23:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15691703] [2023-02-16 04:23:18,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15691703] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:23:18,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433890909] [2023-02-16 04:23:18,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:23:18,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:23:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:23:18,264 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,292 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2023-02-16 04:23:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:23:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-16 04:23:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,293 INFO L225 Difference]: With dead ends: 25 [2023-02-16 04:23:18,293 INFO L226 Difference]: Without dead ends: 24 [2023-02-16 04:23:18,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:23:18,295 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 29 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-16 04:23:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2023-02-16 04:23:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-02-16 04:23:18,300 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 8 [2023-02-16 04:23:18,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,300 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-02-16 04:23:18,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-02-16 04:23:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:23:18,301 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-16 04:23:18,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash 553469754, now seen corresponding path program 1 times [2023-02-16 04:23:18,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807253967] [2023-02-16 04:23:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807253967] [2023-02-16 04:23:18,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807253967] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:23:18,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558015791] [2023-02-16 04:23:18,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:23:18,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:23:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,356 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,363 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2023-02-16 04:23:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:23:18,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-16 04:23:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,365 INFO L225 Difference]: With dead ends: 21 [2023-02-16 04:23:18,365 INFO L226 Difference]: Without dead ends: 20 [2023-02-16 04:23:18,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,366 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-16 04:23:18,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-16 04:23:18,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-02-16 04:23:18,371 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2023-02-16 04:23:18,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,372 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-02-16 04:23:18,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-02-16 04:23:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:23:18,373 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-16 04:23:18,373 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,380 INFO L85 PathProgramCache]: Analyzing trace with hash 553518413, now seen corresponding path program 1 times [2023-02-16 04:23:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230646311] [2023-02-16 04:23:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230646311] [2023-02-16 04:23:18,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230646311] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:23:18,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377998188] [2023-02-16 04:23:18,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:23:18,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:23:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,431 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,440 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-02-16 04:23:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:23:18,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-16 04:23:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,442 INFO L225 Difference]: With dead ends: 23 [2023-02-16 04:23:18,442 INFO L226 Difference]: Without dead ends: 22 [2023-02-16 04:23:18,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,443 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 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 [2023-02-16 04:23:18,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-16 04:23:18,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2023-02-16 04:23:18,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-02-16 04:23:18,448 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2023-02-16 04:23:18,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,448 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-02-16 04:23:18,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,448 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-02-16 04:23:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 04:23:18,449 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-16 04:23:18,450 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,450 INFO L85 PathProgramCache]: Analyzing trace with hash -22306737, now seen corresponding path program 1 times [2023-02-16 04:23:18,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147683878] [2023-02-16 04:23:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147683878] [2023-02-16 04:23:18,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147683878] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:23:18,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531065140] [2023-02-16 04:23:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:23:18,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:23:18,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,483 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,492 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-02-16 04:23:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:23:18,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 04:23:18,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,494 INFO L225 Difference]: With dead ends: 36 [2023-02-16 04:23:18,494 INFO L226 Difference]: Without dead ends: 35 [2023-02-16 04:23:18,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,495 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 30 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-16 04:23:18,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-02-16 04:23:18,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.3) internal successors, (39), 32 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2023-02-16 04:23:18,502 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 10 [2023-02-16 04:23:18,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,502 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2023-02-16 04:23:18,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-02-16 04:23:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 04:23:18,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-16 04:23:18,503 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash -20798319, now seen corresponding path program 1 times [2023-02-16 04:23:18,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435864042] [2023-02-16 04:23:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435864042] [2023-02-16 04:23:18,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435864042] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:23:18,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649204837] [2023-02-16 04:23:18,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:23:18,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:23:18,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,528 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,539 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2023-02-16 04:23:18,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:23:18,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 04:23:18,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,540 INFO L225 Difference]: With dead ends: 52 [2023-02-16 04:23:18,541 INFO L226 Difference]: Without dead ends: 51 [2023-02-16 04:23:18,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:23:18,542 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 32 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-02-16 04:23:18,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2023-02-16 04:23:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 38 states have (on average 1.236842105263158) internal successors, (47), 40 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2023-02-16 04:23:18,548 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 10 [2023-02-16 04:23:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,549 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2023-02-16 04:23:18,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2023-02-16 04:23:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 04:23:18,549 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-16 04:23:18,550 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1487653600, now seen corresponding path program 1 times [2023-02-16 04:23:18,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759517250] [2023-02-16 04:23:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759517250] [2023-02-16 04:23:18,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759517250] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:18,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:23:18,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:23:18,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647383675] [2023-02-16 04:23:18,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:23:18,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:23:18,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:23:18,598 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,617 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2023-02-16 04:23:18,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:23:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 04:23:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,618 INFO L225 Difference]: With dead ends: 51 [2023-02-16 04:23:18,618 INFO L226 Difference]: Without dead ends: 50 [2023-02-16 04:23:18,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:23:18,620 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 35 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-16 04:23:18,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2023-02-16 04:23:18,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-02-16 04:23:18,625 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 12 [2023-02-16 04:23:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,626 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-02-16 04:23:18,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-02-16 04:23:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 04:23:18,627 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:18,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-16 04:23:18,627 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:18,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1077552823, now seen corresponding path program 1 times [2023-02-16 04:23:18,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:18,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257204638] [2023-02-16 04:23:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:18,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257204638] [2023-02-16 04:23:18,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257204638] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:18,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969913617] [2023-02-16 04:23:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:18,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:18,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:18,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:18,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 04:23:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:18,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:23:18,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:23:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:18,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969913617] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:23:18,788 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:23:18,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-16 04:23:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463996162] [2023-02-16 04:23:18,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:23:18,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:23:18,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:18,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:23:18,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:23:18,791 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:18,816 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2023-02-16 04:23:18,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:23:18,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-16 04:23:18,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:18,818 INFO L225 Difference]: With dead ends: 117 [2023-02-16 04:23:18,818 INFO L226 Difference]: Without dead ends: 116 [2023-02-16 04:23:18,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:23:18,820 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 56 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:18,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 66 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:18,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-02-16 04:23:18,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 68. [2023-02-16 04:23:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.196969696969697) internal successors, (79), 67 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2023-02-16 04:23:18,830 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 15 [2023-02-16 04:23:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:18,830 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2023-02-16 04:23:18,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2023-02-16 04:23:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-16 04:23:18,831 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:18,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-16 04:23:18,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:19,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-16 04:23:19,038 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:19,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2142003164, now seen corresponding path program 1 times [2023-02-16 04:23:19,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:19,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358035115] [2023-02-16 04:23:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:19,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:19,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:19,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358035115] [2023-02-16 04:23:19,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358035115] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:19,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096903024] [2023-02-16 04:23:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:19,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:19,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:19,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:19,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 04:23:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:19,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:23:19,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:19,171 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:19,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:23:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:19,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096903024] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:23:19,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:23:19,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-16 04:23:19,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665078280] [2023-02-16 04:23:19,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:23:19,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:23:19,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:19,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:23:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:23:19,211 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:19,238 INFO L93 Difference]: Finished difference Result 169 states and 196 transitions. [2023-02-16 04:23:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:23:19,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-16 04:23:19,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:19,240 INFO L225 Difference]: With dead ends: 169 [2023-02-16 04:23:19,240 INFO L226 Difference]: Without dead ends: 168 [2023-02-16 04:23:19,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:23:19,241 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:19,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 66 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-02-16 04:23:19,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2023-02-16 04:23:19,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 1.191358024691358) internal successors, (193), 163 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2023-02-16 04:23:19,268 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 18 [2023-02-16 04:23:19,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:19,268 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2023-02-16 04:23:19,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2023-02-16 04:23:19,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 04:23:19,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:19,270 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:19,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:19,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-16 04:23:19,471 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:19,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1424536943, now seen corresponding path program 2 times [2023-02-16 04:23:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:19,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955653848] [2023-02-16 04:23:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:19,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:19,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955653848] [2023-02-16 04:23:19,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955653848] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:19,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151094193] [2023-02-16 04:23:19,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:23:19,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:19,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:19,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:19,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 04:23:19,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:23:19,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:23:19,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:23:19,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:19,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:23:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:19,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151094193] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:23:19,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:23:19,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-16 04:23:19,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894741875] [2023-02-16 04:23:19,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:23:19,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 04:23:19,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:19,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 04:23:19,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:23:19,737 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:19,820 INFO L93 Difference]: Finished difference Result 645 states and 733 transitions. [2023-02-16 04:23:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 04:23:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-02-16 04:23:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:19,826 INFO L225 Difference]: With dead ends: 645 [2023-02-16 04:23:19,826 INFO L226 Difference]: Without dead ends: 644 [2023-02-16 04:23:19,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:23:19,829 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 160 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:19,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 135 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:19,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-02-16 04:23:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 314. [2023-02-16 04:23:19,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 312 states have (on average 1.1955128205128205) internal successors, (373), 313 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 373 transitions. [2023-02-16 04:23:19,881 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 373 transitions. Word has length 30 [2023-02-16 04:23:19,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:19,882 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 373 transitions. [2023-02-16 04:23:19,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 373 transitions. [2023-02-16 04:23:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-16 04:23:19,890 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:19,890 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2023-02-16 04:23:19,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:20,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:20,097 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:20,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1116770173, now seen corresponding path program 2 times [2023-02-16 04:23:20,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:20,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814824822] [2023-02-16 04:23:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:20,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:20,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:20,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814824822] [2023-02-16 04:23:20,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814824822] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:20,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808264063] [2023-02-16 04:23:20,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:23:20,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:20,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:20,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:20,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 04:23:20,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:23:20,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:23:20,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:23:20,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:20,285 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:23:20,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:23:20,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808264063] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:23:20,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:23:20,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-02-16 04:23:20,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178935810] [2023-02-16 04:23:20,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:23:20,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:23:20,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:20,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:23:20,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-02-16 04:23:20,287 INFO L87 Difference]: Start difference. First operand 314 states and 373 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:20,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:20,335 INFO L93 Difference]: Finished difference Result 320 states and 378 transitions. [2023-02-16 04:23:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:23:20,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-02-16 04:23:20,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:20,336 INFO L225 Difference]: With dead ends: 320 [2023-02-16 04:23:20,336 INFO L226 Difference]: Without dead ends: 61 [2023-02-16 04:23:20,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-02-16 04:23:20,337 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:20,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 40 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-16 04:23:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-02-16 04:23:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2023-02-16 04:23:20,341 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 42 [2023-02-16 04:23:20,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:20,342 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2023-02-16 04:23:20,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2023-02-16 04:23:20,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-16 04:23:20,343 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:20,343 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:20,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:20,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:20,549 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:20,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:20,550 INFO L85 PathProgramCache]: Analyzing trace with hash 285877137, now seen corresponding path program 3 times [2023-02-16 04:23:20,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:20,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46504515] [2023-02-16 04:23:20,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:20,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:20,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:20,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46504515] [2023-02-16 04:23:20,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46504515] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:20,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291436730] [2023-02-16 04:23:20,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:23:20,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:20,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:20,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:20,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 04:23:20,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-16 04:23:20,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:23:20,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 04:23:20,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:20,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:23:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:21,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291436730] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:23:21,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:23:21,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-16 04:23:21,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029148623] [2023-02-16 04:23:21,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:23:21,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 04:23:21,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:21,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 04:23:21,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-16 04:23:21,115 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 24 states, 23 states have (on average 5.043478260869565) internal successors, (116), 24 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:21,186 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2023-02-16 04:23:21,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-16 04:23:21,186 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.043478260869565) internal successors, (116), 24 states have internal predecessors, (116), 0 states have call successors, (0), 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 60 [2023-02-16 04:23:21,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:21,187 INFO L225 Difference]: With dead ends: 122 [2023-02-16 04:23:21,188 INFO L226 Difference]: Without dead ends: 121 [2023-02-16 04:23:21,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-16 04:23:21,190 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:21,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:23:21,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-02-16 04:23:21,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-02-16 04:23:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2023-02-16 04:23:21,196 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 60 [2023-02-16 04:23:21,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:21,198 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2023-02-16 04:23:21,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.043478260869565) internal successors, (116), 24 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2023-02-16 04:23:21,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-02-16 04:23:21,200 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:21,200 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:21,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:21,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-16 04:23:21,406 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:21,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:21,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1455778415, now seen corresponding path program 4 times [2023-02-16 04:23:21,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:21,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800944219] [2023-02-16 04:23:21,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:21,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:21,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:21,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800944219] [2023-02-16 04:23:21,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800944219] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:21,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153310421] [2023-02-16 04:23:21,993 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 04:23:21,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:21,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:21,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:21,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 04:23:22,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 04:23:22,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:23:22,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-16 04:23:22,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:22,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:23:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:22,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153310421] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:23:22,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:23:22,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-16 04:23:22,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930066453] [2023-02-16 04:23:22,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:23:22,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-16 04:23:22,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:22,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-16 04:23:22,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 04:23:22,973 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand has 48 states, 47 states have (on average 5.0212765957446805) internal successors, (236), 48 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:23,131 INFO L93 Difference]: Finished difference Result 242 states and 265 transitions. [2023-02-16 04:23:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-16 04:23:23,131 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.0212765957446805) internal successors, (236), 48 states have internal predecessors, (236), 0 states have call successors, (0), 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 120 [2023-02-16 04:23:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:23,133 INFO L225 Difference]: With dead ends: 242 [2023-02-16 04:23:23,133 INFO L226 Difference]: Without dead ends: 241 [2023-02-16 04:23:23,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 04:23:23,135 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:23,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:23:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-02-16 04:23:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2023-02-16 04:23:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.0041666666666667) internal successors, (241), 240 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 241 transitions. [2023-02-16 04:23:23,145 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 241 transitions. Word has length 120 [2023-02-16 04:23:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:23,145 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 241 transitions. [2023-02-16 04:23:23,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.0212765957446805) internal successors, (236), 48 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 241 transitions. [2023-02-16 04:23:23,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-02-16 04:23:23,150 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:23,150 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:23,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:23,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-16 04:23:23,356 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1568245359, now seen corresponding path program 5 times [2023-02-16 04:23:23,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:23,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286364861] [2023-02-16 04:23:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:23,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:25,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:25,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:25,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286364861] [2023-02-16 04:23:25,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286364861] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:25,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593098676] [2023-02-16 04:23:25,423 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 04:23:25,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:25,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:25,425 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:25,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 04:23:25,536 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-16 04:23:25,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:23:25,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-16 04:23:25,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:25,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:23:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:28,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593098676] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:23:28,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:23:28,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-16 04:23:28,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839390556] [2023-02-16 04:23:28,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:23:28,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-16 04:23:28,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:28,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-16 04:23:28,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-16 04:23:28,645 INFO L87 Difference]: Start difference. First operand 241 states and 241 transitions. Second operand has 96 states, 95 states have (on average 5.010526315789473) internal successors, (476), 96 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:29,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:29,065 INFO L93 Difference]: Finished difference Result 482 states and 529 transitions. [2023-02-16 04:23:29,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-16 04:23:29,066 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.010526315789473) internal successors, (476), 96 states have internal predecessors, (476), 0 states have call successors, (0), 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 240 [2023-02-16 04:23:29,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:29,068 INFO L225 Difference]: With dead ends: 482 [2023-02-16 04:23:29,068 INFO L226 Difference]: Without dead ends: 481 [2023-02-16 04:23:29,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-16 04:23:29,072 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:29,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 303 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:23:29,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-02-16 04:23:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2023-02-16 04:23:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.0020833333333334) internal successors, (481), 480 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 481 transitions. [2023-02-16 04:23:29,088 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 481 transitions. Word has length 240 [2023-02-16 04:23:29,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:29,088 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 481 transitions. [2023-02-16 04:23:29,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.010526315789473) internal successors, (476), 96 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 481 transitions. [2023-02-16 04:23:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2023-02-16 04:23:29,096 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:29,096 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:29,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:29,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:29,302 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:29,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:29,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1765129839, now seen corresponding path program 6 times [2023-02-16 04:23:29,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:29,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364223073] [2023-02-16 04:23:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:23:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:35,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:23:35,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364223073] [2023-02-16 04:23:35,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364223073] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:23:35,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125603218] [2023-02-16 04:23:35,634 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 04:23:35,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:23:35,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:23:35,637 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:23:35,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 04:23:35,886 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-16 04:23:35,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:23:35,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-16 04:23:35,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:23:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:36,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:23:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:23:45,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125603218] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:23:45,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:23:45,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-16 04:23:45,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638981553] [2023-02-16 04:23:45,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:23:45,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-16 04:23:45,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:23:45,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-16 04:23:45,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-16 04:23:45,540 INFO L87 Difference]: Start difference. First operand 481 states and 481 transitions. Second operand has 192 states, 191 states have (on average 5.005235602094241) internal successors, (956), 192 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:46,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:23:46,633 INFO L93 Difference]: Finished difference Result 962 states and 1057 transitions. [2023-02-16 04:23:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-16 04:23:46,635 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.005235602094241) internal successors, (956), 192 states have internal predecessors, (956), 0 states have call successors, (0), 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 480 [2023-02-16 04:23:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:23:46,638 INFO L225 Difference]: With dead ends: 962 [2023-02-16 04:23:46,638 INFO L226 Difference]: Without dead ends: 961 [2023-02-16 04:23:46,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1054 GetRequests, 864 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-16 04:23:46,642 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:23:46,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 594 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 04:23:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2023-02-16 04:23:46,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2023-02-16 04:23:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 960 states have (on average 1.0010416666666666) internal successors, (961), 960 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 961 transitions. [2023-02-16 04:23:46,667 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 961 transitions. Word has length 480 [2023-02-16 04:23:46,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:23:46,667 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 961 transitions. [2023-02-16 04:23:46,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.005235602094241) internal successors, (956), 192 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:23:46,668 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 961 transitions. [2023-02-16 04:23:46,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2023-02-16 04:23:46,690 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:23:46,691 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 1, 1, 1, 1, 1, 1] [2023-02-16 04:23:46,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 04:23:46,897 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,SelfDestructingSolverStorable17 [2023-02-16 04:23:46,897 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:23:46,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:23:46,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1979830673, now seen corresponding path program 7 times [2023-02-16 04:23:46,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:23:46,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064794529] [2023-02-16 04:23:46,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:23:46,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:23:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:24:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:24:09,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:24:09,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064794529] [2023-02-16 04:24:09,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064794529] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:24:09,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173143713] [2023-02-16 04:24:09,967 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 04:24:09,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:24:09,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:24:09,973 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:24:09,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 04:24:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:24:10,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-16 04:24:10,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:24:11,243 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:24:11,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:24:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:24:45,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173143713] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:24:45,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:24:45,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-16 04:24:45,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757677849] [2023-02-16 04:24:45,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:24:45,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-16 04:24:45,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:24:46,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-16 04:24:46,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-16 04:24:46,027 INFO L87 Difference]: Start difference. First operand 961 states and 961 transitions. Second operand has 384 states, 383 states have (on average 5.002610966057441) internal successors, (1916), 384 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:24:52,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:24:52,411 INFO L93 Difference]: Finished difference Result 1922 states and 2113 transitions. [2023-02-16 04:24:52,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-16 04:24:52,413 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.002610966057441) internal successors, (1916), 384 states have internal predecessors, (1916), 0 states have call successors, (0), 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 960 [2023-02-16 04:24:52,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:24:52,419 INFO L225 Difference]: With dead ends: 1922 [2023-02-16 04:24:52,419 INFO L226 Difference]: Without dead ends: 1921 [2023-02-16 04:24:52,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2110 GetRequests, 1728 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.9s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-16 04:24:52,428 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-16 04:24:52,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1173 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-16 04:24:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2023-02-16 04:24:52,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1921. [2023-02-16 04:24:52,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1920 states have (on average 1.0005208333333333) internal successors, (1921), 1920 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:24:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 1921 transitions. [2023-02-16 04:24:52,475 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 1921 transitions. Word has length 960 [2023-02-16 04:24:52,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:24:52,476 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 1921 transitions. [2023-02-16 04:24:52,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.002610966057441) internal successors, (1916), 384 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:24:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 1921 transitions. [2023-02-16 04:24:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1921 [2023-02-16 04:24:52,529 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:24:52,529 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 382, 1, 1, 1, 1, 1, 1] [2023-02-16 04:24:52,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-16 04:24:52,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:24:52,730 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-16 04:24:52,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:24:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1892617839, now seen corresponding path program 8 times [2023-02-16 04:24:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:24:52,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136115248] [2023-02-16 04:24:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:24:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:24:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:26:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 365765 backedges. 0 proven. 365765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:26:49,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:26:49,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136115248] [2023-02-16 04:26:49,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136115248] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:26:49,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388585667] [2023-02-16 04:26:49,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:26:49,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:26:49,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:26:49,992 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:26:49,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 04:26:50,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:26:50,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:26:50,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 3459 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-16 04:26:50,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:26:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 365765 backedges. 0 proven. 365765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:26:52,526 INFO L328 TraceCheckSpWp]: Computing backward predicates...