./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/b.09_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-restricted-15/b.09_assume.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 ecd53fc1983ec7221b54e3467b23316f260ef4286a86531362dd236dd661ea1a --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:57:09,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:57:09,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:57:09,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:57:09,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:57:09,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:57:09,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:57:09,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:57:09,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:57:09,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:57:09,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:57:09,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:57:09,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:57:09,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:57:09,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:57:09,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:57:09,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:57:09,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:57:09,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:57:09,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:57:09,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:57:09,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:57:09,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:57:09,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:57:09,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:57:09,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:57:09,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:57:09,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:57:09,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:57:09,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:57:09,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:57:09,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:57:09,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:57:09,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:57:09,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:57:09,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:57:09,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:57:09,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:57:09,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:57:09,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:57:09,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:57:09,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:57:09,220 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:57:09,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:57:09,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:57:09,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:57:09,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:57:09,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:57:09,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:57:09,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:57:09,224 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:57:09,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:57:09,225 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:57:09,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:57:09,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:57:09,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:57:09,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:57:09,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:57:09,226 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:57:09,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:57:09,227 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:57:09,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:57:09,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:57:09,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:57:09,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:57:09,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:57:09,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:57:09,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:57:09,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:57:09,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:57:09,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:57:09,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:57:09,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:57:09,230 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:57:09,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:57:09,231 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:57:09,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecd53fc1983ec7221b54e3467b23316f260ef4286a86531362dd236dd661ea1a [2023-02-18 23:57:09,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:57:09,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:57:09,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:57:09,555 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:57:09,555 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:57:09,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.09_assume.c [2023-02-18 23:57:10,670 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:57:10,806 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:57:10,806 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.09_assume.c [2023-02-18 23:57:10,812 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b85db21/fc8f9632669d4dc9840d385102bfde58/FLAGc5ab295eb [2023-02-18 23:57:10,825 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b85db21/fc8f9632669d4dc9840d385102bfde58 [2023-02-18 23:57:10,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:57:10,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:57:10,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:57:10,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:57:10,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:57:10,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:10,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13502442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10, skipping insertion in model container [2023-02-18 23:57:10,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:10,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:57:10,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:57:10,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:57:10,951 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:57:10,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:57:10,971 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:57:10,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10 WrapperNode [2023-02-18 23:57:10,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:57:10,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:57:10,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:57:10,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:57:10,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:10,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:10,996 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-18 23:57:10,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:57:10,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:57:10,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:57:10,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:57:11,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,012 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:57:11,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:57:11,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:57:11,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:57:11,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (1/1) ... [2023-02-18 23:57:11,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:57:11,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:11,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 23:57:11,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 23:57:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:57:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:57:11,146 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:57:11,147 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:57:11,230 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:57:11,235 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:57:11,236 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:57:11,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:57:11 BoogieIcfgContainer [2023-02-18 23:57:11,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:57:11,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:57:11,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:57:11,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:57:11,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:57:10" (1/3) ... [2023-02-18 23:57:11,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5265ddfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:57:11, skipping insertion in model container [2023-02-18 23:57:11,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:10" (2/3) ... [2023-02-18 23:57:11,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5265ddfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:57:11, skipping insertion in model container [2023-02-18 23:57:11,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:57:11" (3/3) ... [2023-02-18 23:57:11,245 INFO L112 eAbstractionObserver]: Analyzing ICFG b.09_assume.c [2023-02-18 23:57:11,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:57:11,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 23:57:11,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:57:11,306 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;@2ae66837, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:57:11,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 23:57:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:57:11,327 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:11,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:57:11,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:11,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:11,334 INFO L85 PathProgramCache]: Analyzing trace with hash 889513684, now seen corresponding path program 1 times [2023-02-18 23:57:11,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:11,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372057755] [2023-02-18 23:57:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:11,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:11,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:11,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372057755] [2023-02-18 23:57:11,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372057755] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:11,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:11,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:11,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055495231] [2023-02-18 23:57:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:11,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:11,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:11,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:11,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,499 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:11,518 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2023-02-18 23:57:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:57:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:11,540 INFO L225 Difference]: With dead ends: 21 [2023-02-18 23:57:11,541 INFO L226 Difference]: Without dead ends: 12 [2023-02-18 23:57:11,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,549 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 16 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 [2023-02-18 23:57:11,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 16 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-02-18 23:57:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-18 23:57:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-02-18 23:57:11,575 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2023-02-18 23:57:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:11,575 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-02-18 23:57:11,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-02-18 23:57:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:57:11,576 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:11,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:57:11,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:57:11,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:11,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:11,579 INFO L85 PathProgramCache]: Analyzing trace with hash 889513741, now seen corresponding path program 1 times [2023-02-18 23:57:11,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:11,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315117799] [2023-02-18 23:57:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:11,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:11,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315117799] [2023-02-18 23:57:11,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315117799] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:11,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:11,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:11,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046804192] [2023-02-18 23:57:11,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:11,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:11,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:11,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:11,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,607 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:11,619 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2023-02-18 23:57:11,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:57:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:11,621 INFO L225 Difference]: With dead ends: 12 [2023-02-18 23:57:11,621 INFO L226 Difference]: Without dead ends: 11 [2023-02-18 23:57:11,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,623 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:11,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:11,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-18 23:57:11,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-18 23:57:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-02-18 23:57:11,627 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2023-02-18 23:57:11,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:11,627 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-02-18 23:57:11,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,627 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-02-18 23:57:11,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:57:11,628 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:11,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:57:11,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:57:11,629 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:11,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:11,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120486, now seen corresponding path program 1 times [2023-02-18 23:57:11,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:11,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235923851] [2023-02-18 23:57:11,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:11,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:11,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:11,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235923851] [2023-02-18 23:57:11,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235923851] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:11,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:11,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:11,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846380801] [2023-02-18 23:57:11,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:11,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:11,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:11,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,702 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:11,710 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2023-02-18 23:57:11,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:11,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 23:57:11,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:11,712 INFO L225 Difference]: With dead ends: 19 [2023-02-18 23:57:11,712 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 23:57:11,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,714 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:11,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 17 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 23:57:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-02-18 23:57:11,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-02-18 23:57:11,733 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 7 [2023-02-18 23:57:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:11,734 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-02-18 23:57:11,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-02-18 23:57:11,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:57:11,735 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:11,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:57:11,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:57:11,735 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122248, now seen corresponding path program 1 times [2023-02-18 23:57:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:11,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838561188] [2023-02-18 23:57:11,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:11,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:11,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:11,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838561188] [2023-02-18 23:57:11,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838561188] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:11,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:11,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:11,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102327580] [2023-02-18 23:57:11,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:11,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:11,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:11,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:11,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,783 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:11,799 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2023-02-18 23:57:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:11,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 23:57:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:11,800 INFO L225 Difference]: With dead ends: 17 [2023-02-18 23:57:11,800 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 23:57:11,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,802 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:11,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:11,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 23:57:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-18 23:57:11,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-02-18 23:57:11,806 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2023-02-18 23:57:11,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:11,806 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-02-18 23:57:11,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-02-18 23:57:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 23:57:11,807 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:11,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 23:57:11,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:57:11,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:11,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:11,809 INFO L85 PathProgramCache]: Analyzing trace with hash 891570347, now seen corresponding path program 1 times [2023-02-18 23:57:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:11,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749779124] [2023-02-18 23:57:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:11,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:11,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:11,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749779124] [2023-02-18 23:57:11,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749779124] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:11,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:11,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:57:11,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736685863] [2023-02-18 23:57:11,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:11,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:11,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:11,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:11,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,847 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:11,862 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-02-18 23:57:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:11,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 23:57:11,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:11,863 INFO L225 Difference]: With dead ends: 23 [2023-02-18 23:57:11,863 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 23:57:11,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:11,865 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:11,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 23:57:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-18 23:57:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-02-18 23:57:11,869 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2023-02-18 23:57:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:11,869 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-02-18 23:57:11,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-02-18 23:57:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-18 23:57:11,870 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:11,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:57:11,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 23:57:11,871 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:11,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2102306639, now seen corresponding path program 1 times [2023-02-18 23:57:11,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:11,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226696477] [2023-02-18 23:57:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:11,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:11,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226696477] [2023-02-18 23:57:11,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226696477] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:57:11,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334457564] [2023-02-18 23:57:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:11,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:11,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:57:11,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:57:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:11,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 23:57:11,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:57:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:12,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:57:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:12,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334457564] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:57:12,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:57:12,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 23:57:12,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607635694] [2023-02-18 23:57:12,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:57:12,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:57:12,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:12,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:57:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:57:12,074 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2023-02-18 23:57:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:12,100 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2023-02-18 23:57:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:57:12,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) Word has length 13 [2023-02-18 23:57:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:12,104 INFO L225 Difference]: With dead ends: 35 [2023-02-18 23:57:12,104 INFO L226 Difference]: Without dead ends: 34 [2023-02-18 23:57:12,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:57:12,115 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 29 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 [2023-02-18 23:57:12,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 29 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:12,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-18 23:57:12,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-18 23:57:12,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 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) [2023-02-18 23:57:12,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2023-02-18 23:57:12,125 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 13 [2023-02-18 23:57:12,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:12,126 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2023-02-18 23:57:12,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2023-02-18 23:57:12,126 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2023-02-18 23:57:12,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-18 23:57:12,127 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:12,127 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-18 23:57:12,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 23:57:12,331 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,SelfDestructingSolverStorable5 [2023-02-18 23:57:12,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:12,333 INFO L85 PathProgramCache]: Analyzing trace with hash 198398218, now seen corresponding path program 2 times [2023-02-18 23:57:12,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:12,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946869722] [2023-02-18 23:57:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:12,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:12,499 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:12,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:12,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946869722] [2023-02-18 23:57:12,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946869722] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:57:12,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075035171] [2023-02-18 23:57:12,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:57:12,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:12,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:12,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:57:12,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:57:12,541 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:57:12,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:57:12,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:57:12,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:57:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:12,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:57:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:12,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075035171] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:57:12,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:57:12,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 23:57:12,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968501610] [2023-02-18 23:57:12,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:57:12,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 23:57:12,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:12,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 23:57:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:57:12,630 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 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) [2023-02-18 23:57:12,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:12,679 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2023-02-18 23:57:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 23:57:12,680 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 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) Word has length 31 [2023-02-18 23:57:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:12,681 INFO L225 Difference]: With dead ends: 71 [2023-02-18 23:57:12,681 INFO L226 Difference]: Without dead ends: 70 [2023-02-18 23:57:12,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:57:12,682 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:12,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 53 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:12,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-18 23:57:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-02-18 23:57:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 69 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:12,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2023-02-18 23:57:12,691 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 31 [2023-02-18 23:57:12,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:12,691 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2023-02-18 23:57:12,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 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) [2023-02-18 23:57:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2023-02-18 23:57:12,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-02-18 23:57:12,695 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:12,695 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2023-02-18 23:57:12,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 23:57:12,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-02-18 23:57:12,896 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:12,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:12,897 INFO L85 PathProgramCache]: Analyzing trace with hash -99562944, now seen corresponding path program 3 times [2023-02-18 23:57:12,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:12,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686937398] [2023-02-18 23:57:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:12,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:13,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686937398] [2023-02-18 23:57:13,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686937398] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:57:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136967144] [2023-02-18 23:57:13,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:57:13,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:13,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:13,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:57:13,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 23:57:13,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:57:13,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:57:13,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 23:57:13,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:57:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:13,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:57:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:13,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136967144] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:57:13,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:57:13,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 23:57:13,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008135610] [2023-02-18 23:57:13,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:57:13,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 23:57:13,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:13,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 23:57:13,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:57:13,467 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:13,530 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2023-02-18 23:57:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 23:57:13,530 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 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 67 [2023-02-18 23:57:13,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:13,532 INFO L225 Difference]: With dead ends: 143 [2023-02-18 23:57:13,532 INFO L226 Difference]: Without dead ends: 142 [2023-02-18 23:57:13,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 112 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:57:13,533 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:13,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 101 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-02-18 23:57:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-02-18 23:57:13,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 141 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:13,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2023-02-18 23:57:13,544 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 67 [2023-02-18 23:57:13,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:13,545 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2023-02-18 23:57:13,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:13,545 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2023-02-18 23:57:13,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-02-18 23:57:13,548 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:13,548 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2023-02-18 23:57:13,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 23:57:13,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:13,756 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:13,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1545311148, now seen corresponding path program 4 times [2023-02-18 23:57:13,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:13,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738818586] [2023-02-18 23:57:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:13,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:14,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:14,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738818586] [2023-02-18 23:57:14,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738818586] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:57:14,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031313840] [2023-02-18 23:57:14,402 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:57:14,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:14,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:14,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:57:14,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 23:57:14,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:57:14,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:57:14,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 23:57:14,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:57:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:14,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:57:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:15,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031313840] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:57:15,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:57:15,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 23:57:15,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130914387] [2023-02-18 23:57:15,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:57:15,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 23:57:15,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:15,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 23:57:15,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:57:15,396 INFO L87 Difference]: Start difference. First operand 142 states and 143 transitions. Second operand has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:15,548 INFO L93 Difference]: Finished difference Result 287 states and 311 transitions. [2023-02-18 23:57:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 23:57:15,549 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 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 139 [2023-02-18 23:57:15,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:15,551 INFO L225 Difference]: With dead ends: 287 [2023-02-18 23:57:15,551 INFO L226 Difference]: Without dead ends: 286 [2023-02-18 23:57:15,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 232 SyntacticMatches, 22 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:57:15,552 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:15,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 198 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:57:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-02-18 23:57:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2023-02-18 23:57:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.0070175438596491) internal successors, (287), 285 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 287 transitions. [2023-02-18 23:57:15,567 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 287 transitions. Word has length 139 [2023-02-18 23:57:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:15,567 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 287 transitions. [2023-02-18 23:57:15,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:15,568 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 287 transitions. [2023-02-18 23:57:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-02-18 23:57:15,570 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:15,570 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2023-02-18 23:57:15,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 23:57:15,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:15,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:15,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash -955612540, now seen corresponding path program 5 times [2023-02-18 23:57:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:15,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911748997] [2023-02-18 23:57:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:15,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:17,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:17,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:17,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911748997] [2023-02-18 23:57:17,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911748997] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:57:17,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204265592] [2023-02-18 23:57:17,734 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:57:17,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:17,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:17,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:57:17,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 23:57:17,877 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 23:57:17,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:57:17,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 23:57:17,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:57:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:18,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:57:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:21,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204265592] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:57:21,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:57:21,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 23:57:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700070200] [2023-02-18 23:57:21,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:57:21,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 23:57:21,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:21,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 23:57:21,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:57:21,223 INFO L87 Difference]: Start difference. First operand 286 states and 287 transitions. Second operand has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:21,884 INFO L93 Difference]: Finished difference Result 575 states and 623 transitions. [2023-02-18 23:57:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-18 23:57:21,885 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 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 283 [2023-02-18 23:57:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:21,888 INFO L225 Difference]: With dead ends: 575 [2023-02-18 23:57:21,889 INFO L226 Difference]: Without dead ends: 574 [2023-02-18 23:57:21,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 472 SyntacticMatches, 46 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:57:21,893 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:21,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 387 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:57:21,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-02-18 23:57:21,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-02-18 23:57:21,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.0034904013961605) internal successors, (575), 573 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 575 transitions. [2023-02-18 23:57:21,920 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 575 transitions. Word has length 283 [2023-02-18 23:57:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:21,921 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 575 transitions. [2023-02-18 23:57:21,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 575 transitions. [2023-02-18 23:57:21,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2023-02-18 23:57:21,937 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:21,937 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2023-02-18 23:57:21,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 23:57:22,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-18 23:57:22,149 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:22,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:22,150 INFO L85 PathProgramCache]: Analyzing trace with hash -417476556, now seen corresponding path program 6 times [2023-02-18 23:57:22,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:22,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212805781] [2023-02-18 23:57:22,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:22,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:28,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:28,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212805781] [2023-02-18 23:57:28,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212805781] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:57:28,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286284119] [2023-02-18 23:57:28,186 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:57:28,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:28,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:28,187 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:57:28,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 23:57:28,445 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 23:57:28,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:57:28,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 23:57:28,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:57:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:31,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:57:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:57:39,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286284119] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:57:39,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:57:39,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 23:57:39,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870635763] [2023-02-18 23:57:39,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:57:39,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 23:57:39,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:39,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 23:57:39,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:57:39,614 INFO L87 Difference]: Start difference. First operand 574 states and 575 transitions. Second operand has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:40,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:40,822 INFO L93 Difference]: Finished difference Result 1151 states and 1247 transitions. [2023-02-18 23:57:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-18 23:57:40,823 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 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 571 [2023-02-18 23:57:40,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:40,827 INFO L225 Difference]: With dead ends: 1151 [2023-02-18 23:57:40,827 INFO L226 Difference]: Without dead ends: 1150 [2023-02-18 23:57:40,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 952 SyntacticMatches, 94 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:57:40,830 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:40,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 773 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:57:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2023-02-18 23:57:40,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2023-02-18 23:57:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 1.001740644038294) internal successors, (1151), 1149 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:40,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1151 transitions. [2023-02-18 23:57:40,848 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1151 transitions. Word has length 571 [2023-02-18 23:57:40,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:40,849 INFO L495 AbstractCegarLoop]: Abstraction has 1150 states and 1151 transitions. [2023-02-18 23:57:40,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:57:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1151 transitions. [2023-02-18 23:57:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2023-02-18 23:57:40,883 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:40,883 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 1, 1, 1, 1, 1] [2023-02-18 23:57:40,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-18 23:57:41,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:57:41,090 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:41,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1721379732, now seen corresponding path program 7 times [2023-02-18 23:57:41,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:41,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147821758] [2023-02-18 23:57:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:58:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 108490 backedges. 0 proven. 108490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:58:04,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:58:04,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147821758] [2023-02-18 23:58:04,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147821758] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:58:04,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285499002] [2023-02-18 23:58:04,523 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:58:04,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:58:04,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:58:04,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:58:04,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 23:58:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:58:04,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1916 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-18 23:58:04,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:58:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 108490 backedges. 0 proven. 108490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:58:15,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:58:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 108490 backedges. 0 proven. 108490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:58:49,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285499002] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:58:49,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:58:49,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-18 23:58:49,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389124577] [2023-02-18 23:58:49,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:58:49,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-18 23:58:49,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:58:49,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-18 23:58:49,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 23:58:49,046 INFO L87 Difference]: Start difference. First operand 1150 states and 1151 transitions. Second operand has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:58:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:58:56,175 INFO L93 Difference]: Finished difference Result 2303 states and 2495 transitions. [2023-02-18 23:58:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-18 23:58:56,177 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 0 states have call successors, (0), 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 1147 [2023-02-18 23:58:56,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:58:56,184 INFO L225 Difference]: With dead ends: 2303 [2023-02-18 23:58:56,184 INFO L226 Difference]: Without dead ends: 2302 [2023-02-18 23:58:56,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2484 GetRequests, 1912 SyntacticMatches, 190 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17955 ImplicationChecksByTransitivity, 54.4s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 23:58:56,192 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 23:58:56,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1542 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 23:58:56,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2023-02-18 23:58:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2023-02-18 23:58:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2301 states have (on average 1.0008691873098652) internal successors, (2303), 2301 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:58:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 2303 transitions. [2023-02-18 23:58:56,231 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 2303 transitions. Word has length 1147 [2023-02-18 23:58:56,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:58:56,240 INFO L495 AbstractCegarLoop]: Abstraction has 2302 states and 2303 transitions. [2023-02-18 23:58:56,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:58:56,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 2303 transitions. [2023-02-18 23:58:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2300 [2023-02-18 23:58:56,271 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:58:56,272 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 382, 1, 1, 1, 1, 1] [2023-02-18 23:58:56,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 23:58:56,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:58:56,473 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:58:56,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:58:56,473 INFO L85 PathProgramCache]: Analyzing trace with hash 384426580, now seen corresponding path program 8 times [2023-02-18 23:58:56,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:58:56,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832265194] [2023-02-18 23:58:56,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:58:56,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:58:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-19 00:01:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 438154 backedges. 0 proven. 438154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-19 00:01:19,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-19 00:01:19,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832265194] [2023-02-19 00:01:19,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832265194] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-19 00:01:19,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578887345] [2023-02-19 00:01:19,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-19 00:01:19,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-19 00:01:19,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:01:19,540 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) [2023-02-19 00:01:19,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-19 00:01:20,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-19 00:01:20,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-19 00:01:20,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 3836 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-19 00:01:20,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-19 00:02:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 438154 backedges. 0 proven. 438154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-19 00:02:13,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-19 00:04:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 438154 backedges. 0 proven. 438154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-19 00:04:56,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578887345] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-19 00:04:56,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-19 00:04:56,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2023-02-19 00:04:56,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249532919] [2023-02-19 00:04:56,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-19 00:04:56,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2023-02-19 00:04:56,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-19 00:04:57,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2023-02-19 00:04:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2023-02-19 00:04:57,054 INFO L87 Difference]: Start difference. First operand 2302 states and 2303 transitions. Second operand has 768 states, 767 states have (on average 5.99348109517601) internal successors, (4597), 768 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-19 00:05:51,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-19 00:05:51,017 INFO L93 Difference]: Finished difference Result 4607 states and 4991 transitions. [2023-02-19 00:05:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2023-02-19 00:05:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 767 states have (on average 5.99348109517601) internal successors, (4597), 768 states have internal predecessors, (4597), 0 states have call successors, (0), 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 2299 [2023-02-19 00:05:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-19 00:05:51,037 INFO L225 Difference]: With dead ends: 4607 [2023-02-19 00:05:51,037 INFO L226 Difference]: Without dead ends: 4606 [2023-02-19 00:05:51,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4980 GetRequests, 3832 SyntacticMatches, 382 SemanticMatches, 766 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72771 ImplicationChecksByTransitivity, 269.0s TimeCoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2023-02-19 00:05:51,077 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-02-19 00:05:51,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3083 Invalid, 1545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-02-19 00:05:51,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4606 states. [2023-02-19 00:05:51,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4606 to 4606. [2023-02-19 00:05:51,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4606 states, 4605 states have (on average 1.0004343105320304) internal successors, (4607), 4605 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-19 00:05:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4606 states to 4606 states and 4607 transitions. [2023-02-19 00:05:51,241 INFO L78 Accepts]: Start accepts. Automaton has 4606 states and 4607 transitions. Word has length 2299 [2023-02-19 00:05:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-19 00:05:51,244 INFO L495 AbstractCegarLoop]: Abstraction has 4606 states and 4607 transitions. [2023-02-19 00:05:51,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 767 states have (on average 5.99348109517601) internal successors, (4597), 768 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-19 00:05:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states and 4607 transitions. [2023-02-19 00:05:51,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4604 [2023-02-19 00:05:51,434 INFO L187 NwaCegarLoop]: Found error trace [2023-02-19 00:05:51,435 INFO L195 NwaCegarLoop]: trace histogram [767, 767, 766, 766, 766, 766, 1, 1, 1, 1, 1] [2023-02-19 00:05:51,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-19 00:05:51,651 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,SelfDestructingSolverStorable12 [2023-02-19 00:05:51,652 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-19 00:05:51,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:05:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash -588951596, now seen corresponding path program 9 times [2023-02-19 00:05:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-19 00:05:51,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218423024] [2023-02-19 00:05:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-19 00:05:51,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-19 00:05:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat