./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 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-crafted-lit/Avery-FLOPS2006-Table1.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 9b244382de79ee7e63c5a39dc4ba4645eb8228d285c75cf6df9353c232d1a135 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:56:24,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:56:24,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:56:24,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:56:24,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:56:24,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:56:24,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:56:24,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:56:24,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:56:24,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:56:24,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:56:24,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:56:24,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:56:24,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:56:24,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:56:24,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:56:24,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:56:24,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:56:24,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:56:24,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:56:24,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:56:24,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:56:24,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:56:24,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:56:24,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:56:24,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:56:24,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:56:24,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:56:24,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:56:24,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:56:24,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:56:24,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:56:24,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:56:24,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:56:24,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:56:24,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:56:24,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:56:24,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:56:24,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:56:24,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:56:24,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:56:24,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 22:56:24,281 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:56:24,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:56:24,281 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:56:24,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:56:24,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:56:24,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:56:24,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:56:24,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:56:24,283 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:56:24,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:56:24,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:56:24,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:56:24,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:56:24,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:56:24,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:56:24,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:56:24,285 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:56:24,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:56:24,285 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:56:24,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:56:24,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:56:24,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:56:24,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:56:24,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:56:24,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:56:24,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:56:24,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:56:24,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:56:24,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:56:24,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:56:24,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:56:24,287 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:56:24,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:56:24,287 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:56:24,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b244382de79ee7e63c5a39dc4ba4645eb8228d285c75cf6df9353c232d1a135 [2023-02-15 22:56:24,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:56:24,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:56:24,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:56:24,462 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:56:24,462 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:56:24,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1.c [2023-02-15 22:56:25,329 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:56:25,457 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:56:25,458 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1.c [2023-02-15 22:56:25,461 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76a57e37/e6043e0e409a485aae14e2a04cf9a60d/FLAG2ba8af009 [2023-02-15 22:56:25,886 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76a57e37/e6043e0e409a485aae14e2a04cf9a60d [2023-02-15 22:56:25,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:56:25,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:56:25,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:56:25,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:56:25,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:56:25,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:56:25" (1/1) ... [2023-02-15 22:56:25,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7e187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:25, skipping insertion in model container [2023-02-15 22:56:25,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:56:25" (1/1) ... [2023-02-15 22:56:25,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:56:25,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:56:25,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:56:25,989 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:56:25,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:56:26,005 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:56:26,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26 WrapperNode [2023-02-15 22:56:26,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:56:26,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:56:26,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:56:26,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:56:26,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,023 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2023-02-15 22:56:26,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:56:26,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:56:26,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:56:26,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:56:26,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:56:26,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:56:26,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:56:26,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:56:26,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (1/1) ... [2023-02-15 22:56:26,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:56:26,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:26,073 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) [2023-02-15 22:56:26,096 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 [2023-02-15 22:56:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:56:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:56:26,150 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:56:26,151 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:56:26,240 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:56:26,244 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:56:26,244 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 22:56:26,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:56:26 BoogieIcfgContainer [2023-02-15 22:56:26,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:56:26,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:56:26,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:56:26,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:56:26,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:56:25" (1/3) ... [2023-02-15 22:56:26,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15df680f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:56:26, skipping insertion in model container [2023-02-15 22:56:26,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:56:26" (2/3) ... [2023-02-15 22:56:26,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15df680f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:56:26, skipping insertion in model container [2023-02-15 22:56:26,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:56:26" (3/3) ... [2023-02-15 22:56:26,251 INFO L112 eAbstractionObserver]: Analyzing ICFG Avery-FLOPS2006-Table1.c [2023-02-15 22:56:26,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:56:26,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-15 22:56:26,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:56:26,295 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;@6fa58258, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:56:26,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-15 22:56:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 22:56:26,301 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:26,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 22:56:26,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2023-02-15 22:56:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:26,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387905982] [2023-02-15 22:56:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:26,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:26,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387905982] [2023-02-15 22:56:26,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387905982] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:56:26,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:56:26,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:56:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894926402] [2023-02-15 22:56:26,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:56:26,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:56:26,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:26,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:56:26,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:56:26,449 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:26,475 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-02-15 22:56:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:56:26,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 22:56:26,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:26,482 INFO L225 Difference]: With dead ends: 38 [2023-02-15 22:56:26,482 INFO L226 Difference]: Without dead ends: 20 [2023-02-15 22:56:26,484 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 [2023-02-15 22:56:26,486 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:26,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 37 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:26,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-15 22:56:26,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-15 22:56:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-02-15 22:56:26,544 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2023-02-15 22:56:26,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:26,545 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-02-15 22:56:26,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,545 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-02-15 22:56:26,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 22:56:26,545 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:26,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 22:56:26,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:56:26,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:26,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:26,547 INFO L85 PathProgramCache]: Analyzing trace with hash 889512267, now seen corresponding path program 1 times [2023-02-15 22:56:26,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:26,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925605068] [2023-02-15 22:56:26,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:26,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:26,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:26,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925605068] [2023-02-15 22:56:26,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925605068] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:56:26,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:56:26,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:56:26,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918854924] [2023-02-15 22:56:26,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:56:26,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:56:26,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:26,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:56:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:56:26,611 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:26,641 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-02-15 22:56:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 22:56:26,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 22:56:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:26,642 INFO L225 Difference]: With dead ends: 33 [2023-02-15 22:56:26,642 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 22:56:26,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:56:26,644 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:26,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 34 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 22:56:26,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2023-02-15 22:56:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-02-15 22:56:26,648 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 6 [2023-02-15 22:56:26,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:26,648 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-02-15 22:56:26,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,648 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-02-15 22:56:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 22:56:26,649 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:26,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 22:56:26,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:56:26,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:26,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:26,650 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2023-02-15 22:56:26,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:26,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498107216] [2023-02-15 22:56:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:26,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:26,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:26,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498107216] [2023-02-15 22:56:26,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498107216] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:56:26,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:56:26,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:56:26,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250404465] [2023-02-15 22:56:26,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:56:26,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:56:26,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:26,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:56:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:56:26,691 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:26,710 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-02-15 22:56:26,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:56:26,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 22:56:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:26,711 INFO L225 Difference]: With dead ends: 23 [2023-02-15 22:56:26,711 INFO L226 Difference]: Without dead ends: 22 [2023-02-15 22:56:26,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:56:26,712 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:26,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 20 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:26,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-15 22:56:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2023-02-15 22:56:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-02-15 22:56:26,716 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 6 [2023-02-15 22:56:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:26,716 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-02-15 22:56:26,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-02-15 22:56:26,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 22:56:26,717 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:26,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:26,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:56:26,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:26,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:26,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1805119269, now seen corresponding path program 1 times [2023-02-15 22:56:26,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:26,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943000119] [2023-02-15 22:56:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:26,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:26,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:26,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943000119] [2023-02-15 22:56:26,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943000119] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:56:26,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:56:26,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:56:26,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502571427] [2023-02-15 22:56:26,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:56:26,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:56:26,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:26,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:56:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:56:26,743 INFO L87 Difference]: Start difference. First operand 20 states and 21 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) [2023-02-15 22:56:26,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:26,755 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-02-15 22:56:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:56:26,755 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 [2023-02-15 22:56:26,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:26,756 INFO L225 Difference]: With dead ends: 28 [2023-02-15 22:56:26,756 INFO L226 Difference]: Without dead ends: 26 [2023-02-15 22:56:26,756 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 [2023-02-15 22:56:26,757 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:26,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:26,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-15 22:56:26,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-02-15 22:56:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-15 22:56:26,761 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 7 [2023-02-15 22:56:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:26,762 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-15 22:56:26,762 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) [2023-02-15 22:56:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-15 22:56:26,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 22:56:26,762 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:26,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:26,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:56:26,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:26,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:26,763 INFO L85 PathProgramCache]: Analyzing trace with hash 124122543, now seen corresponding path program 1 times [2023-02-15 22:56:26,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:26,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705328267] [2023-02-15 22:56:26,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:26,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:26,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:26,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705328267] [2023-02-15 22:56:26,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705328267] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:56:26,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:56:26,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:56:26,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724371071] [2023-02-15 22:56:26,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:56:26,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:56:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:26,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:56:26,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:56:26,803 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:26,821 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-02-15 22:56:26,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:56:26,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 22:56:26,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:26,822 INFO L225 Difference]: With dead ends: 28 [2023-02-15 22:56:26,822 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 22:56:26,823 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 [2023-02-15 22:56:26,823 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:26,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:26,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 22:56:26,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-15 22:56:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-15 22:56:26,827 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 8 [2023-02-15 22:56:26,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:26,828 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-15 22:56:26,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-15 22:56:26,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 22:56:26,828 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:26,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:26,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 22:56:26,833 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:26,833 INFO L85 PathProgramCache]: Analyzing trace with hash -232120963, now seen corresponding path program 1 times [2023-02-15 22:56:26,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:26,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445783218] [2023-02-15 22:56:26,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:26,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:26,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:26,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445783218] [2023-02-15 22:56:26,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445783218] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:56:26,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:56:26,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:56:26,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695800375] [2023-02-15 22:56:26,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:56:26,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:56:26,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:26,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:56:26,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:56:26,876 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2023-02-15 22:56:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:26,913 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2023-02-15 22:56:26,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:56:26,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 [2023-02-15 22:56:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:26,914 INFO L225 Difference]: With dead ends: 27 [2023-02-15 22:56:26,916 INFO L226 Difference]: Without dead ends: 26 [2023-02-15 22:56:26,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:56:26,917 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:26,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 18 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:26,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-15 22:56:26,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-02-15 22:56:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:26,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-02-15 22:56:26,928 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 11 [2023-02-15 22:56:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:26,928 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-02-15 22:56:26,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2023-02-15 22:56:26,929 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2023-02-15 22:56:26,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 22:56:26,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:26,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:26,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 22:56:26,930 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:26,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:26,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1394184806, now seen corresponding path program 1 times [2023-02-15 22:56:26,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:26,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231494686] [2023-02-15 22:56:26,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:26,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 22:56:26,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:26,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231494686] [2023-02-15 22:56:26,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231494686] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:56:26,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:56:26,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:56:26,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147215787] [2023-02-15 22:56:26,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:56:26,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:56:26,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:56:26,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:56:26,976 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2023-02-15 22:56:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:26,991 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2023-02-15 22:56:26,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:56:26,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 22:56:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:26,992 INFO L225 Difference]: With dead ends: 27 [2023-02-15 22:56:26,993 INFO L226 Difference]: Without dead ends: 26 [2023-02-15 22:56:26,993 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 [2023-02-15 22:56:26,994 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:26,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:26,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-15 22:56:27,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-02-15 22:56:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-02-15 22:56:27,004 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2023-02-15 22:56:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:27,004 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-02-15 22:56:27,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2023-02-15 22:56:27,005 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-02-15 22:56:27,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 22:56:27,005 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:27,005 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 22:56:27,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 22:56:27,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:27,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:27,006 INFO L85 PathProgramCache]: Analyzing trace with hash 271379809, now seen corresponding path program 1 times [2023-02-15 22:56:27,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:27,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444183060] [2023-02-15 22:56:27,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:27,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:27,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:27,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444183060] [2023-02-15 22:56:27,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444183060] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:27,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176540977] [2023-02-15 22:56:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:27,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:27,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:27,057 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) [2023-02-15 22:56:27,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 22:56:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:27,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:56:27,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:27,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:27,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176540977] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:27,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:27,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 22:56:27,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900486683] [2023-02-15 22:56:27,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:27,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 22:56:27,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:27,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 22:56:27,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:56:27,165 INFO L87 Difference]: Start difference. First operand 26 states and 27 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) [2023-02-15 22:56:27,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:27,219 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2023-02-15 22:56:27,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:56:27,220 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 [2023-02-15 22:56:27,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:27,223 INFO L225 Difference]: With dead ends: 69 [2023-02-15 22:56:27,224 INFO L226 Difference]: Without dead ends: 67 [2023-02-15 22:56:27,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:56:27,225 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 41 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:27,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 48 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-02-15 22:56:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2023-02-15 22:56:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2023-02-15 22:56:27,231 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 13 [2023-02-15 22:56:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:27,232 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2023-02-15 22:56:27,232 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) [2023-02-15 22:56:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2023-02-15 22:56:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 22:56:27,232 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:27,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:27,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 22:56:27,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:27,446 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:27,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:27,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1978823143, now seen corresponding path program 1 times [2023-02-15 22:56:27,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:27,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951963928] [2023-02-15 22:56:27,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:27,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 22:56:27,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951963928] [2023-02-15 22:56:27,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951963928] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297613833] [2023-02-15 22:56:27,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:27,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:27,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:27,478 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) [2023-02-15 22:56:27,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 22:56:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:27,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:56:27,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 22:56:27,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 22:56:27,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297613833] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:27,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:27,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 22:56:27,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959867365] [2023-02-15 22:56:27,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:27,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 22:56:27,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:27,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 22:56:27,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:56:27,559 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:27,592 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2023-02-15 22:56:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:56:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-15 22:56:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:27,594 INFO L225 Difference]: With dead ends: 84 [2023-02-15 22:56:27,594 INFO L226 Difference]: Without dead ends: 83 [2023-02-15 22:56:27,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:56:27,595 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:27,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 40 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-02-15 22:56:27,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2023-02-15 22:56:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2023-02-15 22:56:27,601 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 17 [2023-02-15 22:56:27,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:27,601 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2023-02-15 22:56:27,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2023-02-15 22:56:27,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 22:56:27,602 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:27,602 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:27,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:27,809 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,SelfDestructingSolverStorable8 [2023-02-15 22:56:27,809 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:27,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1213975220, now seen corresponding path program 1 times [2023-02-15 22:56:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:27,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37314946] [2023-02-15 22:56:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:27,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:27,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:27,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37314946] [2023-02-15 22:56:27,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37314946] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:27,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524145078] [2023-02-15 22:56:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:27,856 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) [2023-02-15 22:56:27,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 22:56:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:27,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 22:56:27,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:27,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:27,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524145078] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:27,933 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:27,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 22:56:27,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914069152] [2023-02-15 22:56:27,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:27,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 22:56:27,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 22:56:27,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:56:27,935 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:27,954 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2023-02-15 22:56:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:56:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 22:56:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:27,956 INFO L225 Difference]: With dead ends: 81 [2023-02-15 22:56:27,956 INFO L226 Difference]: Without dead ends: 80 [2023-02-15 22:56:27,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:56:27,957 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:27,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 37 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-15 22:56:27,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-02-15 22:56:27,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 79 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2023-02-15 22:56:27,963 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 18 [2023-02-15 22:56:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:27,963 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2023-02-15 22:56:27,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2023-02-15 22:56:27,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 22:56:27,964 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:27,964 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 22:56:27,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 22:56:28,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:28,171 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:28,172 INFO L85 PathProgramCache]: Analyzing trace with hash -543038417, now seen corresponding path program 2 times [2023-02-15 22:56:28,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:28,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854661434] [2023-02-15 22:56:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:28,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:28,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:28,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854661434] [2023-02-15 22:56:28,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854661434] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:28,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820453824] [2023-02-15 22:56:28,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:56:28,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:28,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:28,227 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) [2023-02-15 22:56:28,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 22:56:28,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:56:28,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:28,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 22:56:28,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:28,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:28,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820453824] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:28,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:28,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 22:56:28,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027634852] [2023-02-15 22:56:28,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:28,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:56:28,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:28,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:56:28,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:56:28,363 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:28,425 INFO L93 Difference]: Finished difference Result 238 states and 278 transitions. [2023-02-15 22:56:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 22:56:28,426 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-15 22:56:28,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:28,426 INFO L225 Difference]: With dead ends: 238 [2023-02-15 22:56:28,427 INFO L226 Difference]: Without dead ends: 236 [2023-02-15 22:56:28,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:56:28,427 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 147 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:28,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 90 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:28,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-02-15 22:56:28,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 110. [2023-02-15 22:56:28,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.179245283018868) internal successors, (125), 109 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:28,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2023-02-15 22:56:28,441 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 28 [2023-02-15 22:56:28,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:28,442 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2023-02-15 22:56:28,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:28,442 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2023-02-15 22:56:28,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 22:56:28,442 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:28,442 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:28,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 22:56:28,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:28,648 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:28,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:28,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1365633574, now seen corresponding path program 2 times [2023-02-15 22:56:28,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:28,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183717746] [2023-02-15 22:56:28,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:28,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-02-15 22:56:28,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:28,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183717746] [2023-02-15 22:56:28,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183717746] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:28,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138996115] [2023-02-15 22:56:28,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:56:28,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:28,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:28,678 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) [2023-02-15 22:56:28,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 22:56:28,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 22:56:28,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:28,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:56:28,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-02-15 22:56:28,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-02-15 22:56:28,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138996115] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:28,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:28,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-02-15 22:56:28,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409291259] [2023-02-15 22:56:28,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:28,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:56:28,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:28,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:56:28,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:56:28,772 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2023-02-15 22:56:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:28,785 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2023-02-15 22:56:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:56:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) Word has length 32 [2023-02-15 22:56:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:28,786 INFO L225 Difference]: With dead ends: 110 [2023-02-15 22:56:28,786 INFO L226 Difference]: Without dead ends: 109 [2023-02-15 22:56:28,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:56:28,786 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:28,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:28,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-02-15 22:56:28,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-02-15 22:56:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2023-02-15 22:56:28,793 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 32 [2023-02-15 22:56:28,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:28,793 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2023-02-15 22:56:28,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2023-02-15 22:56:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2023-02-15 22:56:28,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-15 22:56:28,794 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:28,794 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:28,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:28,997 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,SelfDestructingSolverStorable11 [2023-02-15 22:56:28,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:28,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:28,999 INFO L85 PathProgramCache]: Analyzing trace with hash -615032097, now seen corresponding path program 2 times [2023-02-15 22:56:28,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:28,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036346186] [2023-02-15 22:56:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:28,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:29,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:29,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036346186] [2023-02-15 22:56:29,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036346186] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:29,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730555007] [2023-02-15 22:56:29,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:56:29,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:29,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:29,077 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) [2023-02-15 22:56:29,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 22:56:29,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:56:29,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:29,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 22:56:29,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:29,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:29,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730555007] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:29,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:29,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 22:56:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178174758] [2023-02-15 22:56:29,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:29,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:56:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:56:29,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:56:29,214 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:29,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:29,250 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2023-02-15 22:56:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 22:56:29,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 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 33 [2023-02-15 22:56:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:29,252 INFO L225 Difference]: With dead ends: 170 [2023-02-15 22:56:29,252 INFO L226 Difference]: Without dead ends: 169 [2023-02-15 22:56:29,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:56:29,253 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:29,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:56:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-02-15 22:56:29,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-02-15 22:56:29,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 166 states have (on average 1.1385542168674698) internal successors, (189), 168 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 189 transitions. [2023-02-15 22:56:29,261 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 189 transitions. Word has length 33 [2023-02-15 22:56:29,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:29,261 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 189 transitions. [2023-02-15 22:56:29,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 189 transitions. [2023-02-15 22:56:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 22:56:29,263 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:29,263 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1] [2023-02-15 22:56:29,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:29,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:29,475 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:29,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:29,475 INFO L85 PathProgramCache]: Analyzing trace with hash 947278319, now seen corresponding path program 3 times [2023-02-15 22:56:29,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:29,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099125647] [2023-02-15 22:56:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:29,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:29,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:29,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099125647] [2023-02-15 22:56:29,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099125647] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:29,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467398107] [2023-02-15 22:56:29,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:56:29,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:29,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:29,626 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) [2023-02-15 22:56:29,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 22:56:29,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 22:56:29,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:29,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 22:56:29,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:29,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:29,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467398107] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:29,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:29,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 22:56:29,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539769041] [2023-02-15 22:56:29,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:29,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 22:56:29,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:29,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 22:56:29,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:56:29,896 INFO L87 Difference]: Start difference. First operand 169 states and 189 transitions. Second operand has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:30,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:30,038 INFO L93 Difference]: Finished difference Result 835 states and 955 transitions. [2023-02-15 22:56:30,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 22:56:30,038 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 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 58 [2023-02-15 22:56:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:30,041 INFO L225 Difference]: With dead ends: 835 [2023-02-15 22:56:30,041 INFO L226 Difference]: Without dead ends: 833 [2023-02-15 22:56:30,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:56:30,042 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 278 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:30,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 173 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:56:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-02-15 22:56:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 229. [2023-02-15 22:56:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 226 states have (on average 1.154867256637168) internal successors, (261), 228 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:30,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 261 transitions. [2023-02-15 22:56:30,053 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 261 transitions. Word has length 58 [2023-02-15 22:56:30,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:30,053 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 261 transitions. [2023-02-15 22:56:30,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:30,054 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 261 transitions. [2023-02-15 22:56:30,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 22:56:30,055 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:30,055 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:30,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:30,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:30,262 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1507369153, now seen corresponding path program 3 times [2023-02-15 22:56:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:30,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748588652] [2023-02-15 22:56:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:30,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 1 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:30,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:30,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748588652] [2023-02-15 22:56:30,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748588652] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:30,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471872727] [2023-02-15 22:56:30,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:56:30,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:30,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:30,367 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) [2023-02-15 22:56:30,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 22:56:30,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 22:56:30,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:30,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 22:56:30,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 1 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:30,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 1 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:30,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471872727] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:30,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:30,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 22:56:30,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449160070] [2023-02-15 22:56:30,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:30,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 22:56:30,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:30,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 22:56:30,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:56:30,684 INFO L87 Difference]: Start difference. First operand 229 states and 261 transitions. Second operand has 24 states, 23 states have (on average 5.434782608695652) internal successors, (125), 24 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:30,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:30,764 INFO L93 Difference]: Finished difference Result 350 states and 417 transitions. [2023-02-15 22:56:30,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 22:56:30,765 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.434782608695652) internal successors, (125), 24 states have internal predecessors, (125), 0 states have call successors, (0), 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 63 [2023-02-15 22:56:30,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:30,766 INFO L225 Difference]: With dead ends: 350 [2023-02-15 22:56:30,766 INFO L226 Difference]: Without dead ends: 349 [2023-02-15 22:56:30,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:56:30,766 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 60 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:30,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 87 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:56:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-02-15 22:56:30,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2023-02-15 22:56:30,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 346 states have (on average 1.1358381502890174) internal successors, (393), 348 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:30,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 393 transitions. [2023-02-15 22:56:30,779 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 393 transitions. Word has length 63 [2023-02-15 22:56:30,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:30,780 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 393 transitions. [2023-02-15 22:56:30,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.434782608695652) internal successors, (125), 24 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:30,780 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 393 transitions. [2023-02-15 22:56:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-02-15 22:56:30,782 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:30,783 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1] [2023-02-15 22:56:30,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:30,986 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,SelfDestructingSolverStorable14 [2023-02-15 22:56:30,987 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:30,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1653046639, now seen corresponding path program 4 times [2023-02-15 22:56:30,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:30,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294217083] [2023-02-15 22:56:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:31,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:31,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294217083] [2023-02-15 22:56:31,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294217083] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:31,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813597871] [2023-02-15 22:56:31,384 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:56:31,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:31,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:31,396 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:56:31,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 22:56:31,442 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:56:31,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:31,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 22:56:31,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:31,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:32,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813597871] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:32,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:32,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 22:56:32,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241351008] [2023-02-15 22:56:32,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:32,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 22:56:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:32,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 22:56:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:56:32,225 INFO L87 Difference]: Start difference. First operand 349 states and 393 transitions. Second operand has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:32,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:32,574 INFO L93 Difference]: Finished difference Result 3115 states and 3505 transitions. [2023-02-15 22:56:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 22:56:32,575 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 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 118 [2023-02-15 22:56:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:32,582 INFO L225 Difference]: With dead ends: 3115 [2023-02-15 22:56:32,582 INFO L226 Difference]: Without dead ends: 3113 [2023-02-15 22:56:32,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:56:32,584 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 712 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:32,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 343 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:56:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2023-02-15 22:56:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 469. [2023-02-15 22:56:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 466 states have (on average 1.1523605150214593) internal successors, (537), 468 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 537 transitions. [2023-02-15 22:56:32,610 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 537 transitions. Word has length 118 [2023-02-15 22:56:32,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:32,610 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 537 transitions. [2023-02-15 22:56:32,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 537 transitions. [2023-02-15 22:56:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-02-15 22:56:32,614 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:32,614 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:32,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:32,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 22:56:32,821 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:32,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:32,821 INFO L85 PathProgramCache]: Analyzing trace with hash 349286399, now seen corresponding path program 4 times [2023-02-15 22:56:32,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:32,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274674774] [2023-02-15 22:56:32,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:32,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 1 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:33,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:33,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274674774] [2023-02-15 22:56:33,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274674774] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:33,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043853775] [2023-02-15 22:56:33,297 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:56:33,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:33,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:33,302 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:56:33,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 22:56:33,347 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:56:33,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:33,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 22:56:33,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 1 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:33,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:34,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 1 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:34,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043853775] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:34,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:34,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 22:56:34,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570255755] [2023-02-15 22:56:34,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:34,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 22:56:34,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:34,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 22:56:34,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:56:34,123 INFO L87 Difference]: Start difference. First operand 469 states and 537 transitions. Second operand has 48 states, 47 states have (on average 5.212765957446808) internal successors, (245), 48 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:34,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:34,310 INFO L93 Difference]: Finished difference Result 710 states and 849 transitions. [2023-02-15 22:56:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 22:56:34,310 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.212765957446808) internal successors, (245), 48 states have internal predecessors, (245), 0 states have call successors, (0), 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 123 [2023-02-15 22:56:34,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:34,312 INFO L225 Difference]: With dead ends: 710 [2023-02-15 22:56:34,313 INFO L226 Difference]: Without dead ends: 709 [2023-02-15 22:56:34,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:56:34,314 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:34,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 163 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:56:34,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2023-02-15 22:56:34,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2023-02-15 22:56:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 706 states have (on average 1.1345609065155808) internal successors, (801), 708 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:34,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 801 transitions. [2023-02-15 22:56:34,339 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 801 transitions. Word has length 123 [2023-02-15 22:56:34,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:34,340 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 801 transitions. [2023-02-15 22:56:34,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.212765957446808) internal successors, (245), 48 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 801 transitions. [2023-02-15 22:56:34,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-02-15 22:56:34,342 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:34,342 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1] [2023-02-15 22:56:34,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:34,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-15 22:56:34,546 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:34,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1587866513, now seen corresponding path program 5 times [2023-02-15 22:56:34,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:34,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254813562] [2023-02-15 22:56:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:34,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:35,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:35,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:35,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254813562] [2023-02-15 22:56:35,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254813562] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:35,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203308723] [2023-02-15 22:56:35,855 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:56:35,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:35,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:35,869 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:56:35,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 22:56:35,957 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 22:56:35,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:35,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 22:56:35,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:36,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:38,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203308723] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:38,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:38,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 22:56:38,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998758449] [2023-02-15 22:56:38,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:38,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 22:56:38,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:38,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 22:56:38,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:56:38,400 INFO L87 Difference]: Start difference. First operand 709 states and 801 transitions. Second operand has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:40,192 INFO L93 Difference]: Finished difference Result 11995 states and 13357 transitions. [2023-02-15 22:56:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 22:56:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 0 states have call successors, (0), 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 238 [2023-02-15 22:56:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:40,218 INFO L225 Difference]: With dead ends: 11995 [2023-02-15 22:56:40,219 INFO L226 Difference]: Without dead ends: 11993 [2023-02-15 22:56:40,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:56:40,227 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1809 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:40,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 680 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 22:56:40,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11993 states. [2023-02-15 22:56:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11993 to 949. [2023-02-15 22:56:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 946 states have (on average 1.1511627906976745) internal successors, (1089), 948 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1089 transitions. [2023-02-15 22:56:40,325 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1089 transitions. Word has length 238 [2023-02-15 22:56:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:40,326 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1089 transitions. [2023-02-15 22:56:40,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1089 transitions. [2023-02-15 22:56:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-02-15 22:56:40,328 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:40,328 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:56:40,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:40,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-15 22:56:40,533 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:40,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:40,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1282896255, now seen corresponding path program 5 times [2023-02-15 22:56:40,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:40,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653792379] [2023-02-15 22:56:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:40,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5360 backedges. 1 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:41,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:41,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653792379] [2023-02-15 22:56:41,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653792379] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:41,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790621458] [2023-02-15 22:56:41,793 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:56:41,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:41,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:41,801 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:56:41,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 22:56:41,885 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 22:56:41,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:41,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-15 22:56:41,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 5360 backedges. 1 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:42,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:44,212 INFO L134 CoverageAnalysis]: Checked inductivity of 5360 backedges. 1 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:44,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790621458] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:44,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:44,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 22:56:44,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576690502] [2023-02-15 22:56:44,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:44,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 22:56:44,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 22:56:44,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:56:44,225 INFO L87 Difference]: Start difference. First operand 949 states and 1089 transitions. Second operand has 96 states, 95 states have (on average 5.105263157894737) internal successors, (485), 96 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:45,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:56:45,376 INFO L93 Difference]: Finished difference Result 1430 states and 1713 transitions. [2023-02-15 22:56:45,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 22:56:45,376 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.105263157894737) internal successors, (485), 96 states have internal predecessors, (485), 0 states have call successors, (0), 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 243 [2023-02-15 22:56:45,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:56:45,379 INFO L225 Difference]: With dead ends: 1430 [2023-02-15 22:56:45,380 INFO L226 Difference]: Without dead ends: 1429 [2023-02-15 22:56:45,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:56:45,382 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 38 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:56:45,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 306 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:56:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2023-02-15 22:56:45,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1429. [2023-02-15 22:56:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1426 states have (on average 1.1339410939691446) internal successors, (1617), 1428 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1617 transitions. [2023-02-15 22:56:45,433 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1617 transitions. Word has length 243 [2023-02-15 22:56:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:56:45,434 INFO L495 AbstractCegarLoop]: Abstraction has 1429 states and 1617 transitions. [2023-02-15 22:56:45,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.105263157894737) internal successors, (485), 96 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:56:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1617 transitions. [2023-02-15 22:56:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-02-15 22:56:45,438 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:56:45,439 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1] [2023-02-15 22:56:45,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 22:56:45,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:45,643 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:56:45,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:56:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1975041425, now seen corresponding path program 6 times [2023-02-15 22:56:45,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:56:45,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746318978] [2023-02-15 22:56:45,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:56:45,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:56:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:56:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:49,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:56:49,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746318978] [2023-02-15 22:56:49,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746318978] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:56:49,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273495155] [2023-02-15 22:56:49,932 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:56:49,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:56:49,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:56:49,934 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:56:49,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 22:56:50,108 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 22:56:50,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:56:50,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 22:56:50,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:56:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:50,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:56:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:56:58,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273495155] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:56:58,535 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:56:58,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 22:56:58,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655287944] [2023-02-15 22:56:58,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:56:58,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 22:56:58,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:56:58,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 22:56:58,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:56:58,547 INFO L87 Difference]: Start difference. First operand 1429 states and 1617 transitions. Second operand has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:57:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:57:15,644 INFO L93 Difference]: Finished difference Result 47035 states and 52069 transitions. [2023-02-15 22:57:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 22:57:15,645 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 0 states have call successors, (0), 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 478 [2023-02-15 22:57:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:57:15,722 INFO L225 Difference]: With dead ends: 47035 [2023-02-15 22:57:15,722 INFO L226 Difference]: Without dead ends: 47033 [2023-02-15 22:57:15,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:57:15,747 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3821 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3821 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 22:57:15,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3821 Valid, 1351 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 22:57:15,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47033 states. [2023-02-15 22:57:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47033 to 1909. [2023-02-15 22:57:16,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1906 states have (on average 1.1505771248688352) internal successors, (2193), 1908 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:57:16,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2193 transitions. [2023-02-15 22:57:16,053 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2193 transitions. Word has length 478 [2023-02-15 22:57:16,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:57:16,053 INFO L495 AbstractCegarLoop]: Abstraction has 1909 states and 2193 transitions. [2023-02-15 22:57:16,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:57:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2193 transitions. [2023-02-15 22:57:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2023-02-15 22:57:16,059 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:57:16,059 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:57:16,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-02-15 22:57:16,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-02-15 22:57:16,264 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:57:16,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:57:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1035504513, now seen corresponding path program 6 times [2023-02-15 22:57:16,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:57:16,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555527127] [2023-02-15 22:57:16,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:57:16,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:57:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:57:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 22232 backedges. 1 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:57:20,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:57:20,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555527127] [2023-02-15 22:57:20,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555527127] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:57:20,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132264171] [2023-02-15 22:57:20,531 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:57:20,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:57:20,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:57:20,532 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:57:20,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 22:57:20,714 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 22:57:20,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:57:20,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-15 22:57:20,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:57:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 22232 backedges. 1 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:57:21,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:57:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 22232 backedges. 1 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:57:29,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132264171] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:57:29,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:57:29,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 22:57:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692929106] [2023-02-15 22:57:29,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:57:29,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 22:57:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:57:29,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 22:57:29,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:57:29,473 INFO L87 Difference]: Start difference. First operand 1909 states and 2193 transitions. Second operand has 192 states, 191 states have (on average 5.052356020942408) internal successors, (965), 192 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:57:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:57:42,271 INFO L93 Difference]: Finished difference Result 2870 states and 3441 transitions. [2023-02-15 22:57:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 22:57:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.052356020942408) internal successors, (965), 192 states have internal predecessors, (965), 0 states have call successors, (0), 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 483 [2023-02-15 22:57:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:57:42,275 INFO L225 Difference]: With dead ends: 2870 [2023-02-15 22:57:42,275 INFO L226 Difference]: Without dead ends: 2869 [2023-02-15 22:57:42,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 871 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:57:42,277 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:57:42,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 593 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 22:57:42,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2023-02-15 22:57:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2869. [2023-02-15 22:57:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2866 states have (on average 1.133635729239358) internal successors, (3249), 2868 states have internal predecessors, (3249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:57:42,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 3249 transitions. [2023-02-15 22:57:42,412 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 3249 transitions. Word has length 483 [2023-02-15 22:57:42,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:57:42,412 INFO L495 AbstractCegarLoop]: Abstraction has 2869 states and 3249 transitions. [2023-02-15 22:57:42,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.052356020942408) internal successors, (965), 192 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:57:42,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 3249 transitions. [2023-02-15 22:57:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2023-02-15 22:57:42,420 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:57:42,420 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 1, 1, 1, 1] [2023-02-15 22:57:42,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 22:57:42,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:57:42,629 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:57:42,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:57:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1925996945, now seen corresponding path program 7 times [2023-02-15 22:57:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:57:42,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183979416] [2023-02-15 22:57:42,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:57:42,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:57:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:01,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:01,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183979416] [2023-02-15 22:58:01,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183979416] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:01,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827574521] [2023-02-15 22:58:01,809 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 22:58:01,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:01,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:01,810 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:01,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 22:58:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:02,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-15 22:58:02,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:02,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:33,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827574521] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:33,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:33,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-15 22:58:33,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593739296] [2023-02-15 22:58:33,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:33,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-15 22:58:33,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:33,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-15 22:58:33,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-15 22:58:33,873 INFO L87 Difference]: Start difference. First operand 2869 states and 3249 transitions. Second operand has 384 states, 383 states have (on average 5.0) internal successors, (1915), 384 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)