./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:16:45,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:16:45,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:16:45,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:16:45,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:16:45,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:16:45,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:16:45,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:16:45,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:16:45,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:16:45,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:16:45,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:16:45,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:16:45,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:16:45,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:16:45,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:16:45,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:16:45,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:16:45,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:16:45,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:16:45,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:16:45,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:16:45,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:16:45,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:16:45,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:16:45,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:16:45,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:16:45,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:16:45,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:16:45,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:16:45,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:16:45,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:16:45,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:16:45,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:16:45,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:16:45,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:16:45,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:16:45,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:16:45,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:16:45,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:16:45,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:16:45,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-16 04:16:45,108 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:16:45,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:16:45,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:16:45,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:16:45,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 04:16:45,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 04:16:45,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:16:45,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:16:45,109 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:16:45,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 04:16:45,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:16:45,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:16:45,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 04:16:45,111 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 04:16:45,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2023-02-16 04:16:45,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:16:45,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:16:45,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:16:45,332 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:16:45,333 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:16:45,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-02-16 04:16:46,312 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:16:46,495 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:16:46,496 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-02-16 04:16:46,500 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb5127033/0eb6892de9c94012b1a2801fe73aa6c8/FLAGc24d49e17 [2023-02-16 04:16:46,512 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb5127033/0eb6892de9c94012b1a2801fe73aa6c8 [2023-02-16 04:16:46,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:16:46,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:16:46,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:16:46,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:16:46,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:16:46,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd1dd58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46, skipping insertion in model container [2023-02-16 04:16:46,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:16:46,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:16:46,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:16:46,612 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:16:46,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:16:46,627 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:16:46,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46 WrapperNode [2023-02-16 04:16:46,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:16:46,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:16:46,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:16:46,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:16:46,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,644 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2023-02-16 04:16:46,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:16:46,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:16:46,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:16:46,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:16:46,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:16:46,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:16:46,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:16:46,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:16:46,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (1/1) ... [2023-02-16 04:16:46,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:16:46,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:46,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 04:16:46,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 04:16:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:16:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:16:46,755 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:16:46,756 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:16:46,830 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:16:46,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:16:46,835 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 04:16:46,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:16:46 BoogieIcfgContainer [2023-02-16 04:16:46,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:16:46,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 04:16:46,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 04:16:46,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 04:16:46,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:16:46" (1/3) ... [2023-02-16 04:16:46,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4e4344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:16:46, skipping insertion in model container [2023-02-16 04:16:46,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:16:46" (2/3) ... [2023-02-16 04:16:46,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4e4344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:16:46, skipping insertion in model container [2023-02-16 04:16:46,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:16:46" (3/3) ... [2023-02-16 04:16:46,842 INFO L112 eAbstractionObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-02-16 04:16:46,853 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 04:16:46,853 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-16 04:16:46,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 04:16:46,887 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;@4a221f73, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 04:16:46,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-16 04:16:46,890 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) [2023-02-16 04:16:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-16 04:16:46,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:46,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 04:16:46,895 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)] === [2023-02-16 04:16:46,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:46,899 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2023-02-16 04:16:46,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:46,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355932944] [2023-02-16 04:16:46,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:46,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:46,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355932944] [2023-02-16 04:16:47,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355932944] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:16:47,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142161714] [2023-02-16 04:16:47,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:16:47,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:16:47,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:16:47,047 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) [2023-02-16 04:16:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,079 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2023-02-16 04:16:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:16:47,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-16 04:16:47,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,085 INFO L225 Difference]: With dead ends: 54 [2023-02-16 04:16:47,086 INFO L226 Difference]: Without dead ends: 24 [2023-02-16 04:16:47,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:16:47,090 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-16 04:16:47,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-02-16 04:16:47,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-16 04:16:47,111 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2023-02-16 04:16:47,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,111 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-16 04:16:47,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-16 04:16:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-16 04:16:47,112 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 04:16:47,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:47,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,113 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2023-02-16 04:16:47,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425330608] [2023-02-16 04:16:47,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425330608] [2023-02-16 04:16:47,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425330608] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:16:47,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109024970] [2023-02-16 04:16:47,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:16:47,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:16:47,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:16:47,156 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,173 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-16 04:16:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:16:47,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-16 04:16:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,174 INFO L225 Difference]: With dead ends: 23 [2023-02-16 04:16:47,174 INFO L226 Difference]: Without dead ends: 22 [2023-02-16 04:16:47,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:16:47,175 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-16 04:16:47,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-16 04:16:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-16 04:16:47,190 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2023-02-16 04:16:47,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,190 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-16 04:16:47,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,190 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-16 04:16:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-16 04:16:47,191 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 04:16:47,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash 124122716, now seen corresponding path program 1 times [2023-02-16 04:16:47,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040012541] [2023-02-16 04:16:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040012541] [2023-02-16 04:16:47,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040012541] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:16:47,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598329689] [2023-02-16 04:16:47,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:16:47,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:16:47,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:16:47,274 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,339 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2023-02-16 04:16:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 04:16:47,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-16 04:16:47,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,340 INFO L225 Difference]: With dead ends: 42 [2023-02-16 04:16:47,340 INFO L226 Difference]: Without dead ends: 41 [2023-02-16 04:16:47,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-16 04:16:47,342 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 21 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-16 04:16:47,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2023-02-16 04:16:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-02-16 04:16:47,347 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 8 [2023-02-16 04:16:47,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,348 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-02-16 04:16:47,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-02-16 04:16:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-16 04:16:47,348 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 04:16:47,349 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)] === [2023-02-16 04:16:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash 124122767, now seen corresponding path program 1 times [2023-02-16 04:16:47,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021941580] [2023-02-16 04:16:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021941580] [2023-02-16 04:16:47,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021941580] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:16:47,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877198388] [2023-02-16 04:16:47,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:16:47,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:16:47,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:16:47,383 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,420 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2023-02-16 04:16:47,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:16:47,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-16 04:16:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,424 INFO L225 Difference]: With dead ends: 59 [2023-02-16 04:16:47,424 INFO L226 Difference]: Without dead ends: 57 [2023-02-16 04:16:47,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:16:47,432 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-16 04:16:47,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2023-02-16 04:16:47,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.564102564102564) internal successors, (61), 45 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2023-02-16 04:16:47,449 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 8 [2023-02-16 04:16:47,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,453 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2023-02-16 04:16:47,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,454 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-02-16 04:16:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:16:47,454 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 04:16:47,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash -447163028, now seen corresponding path program 1 times [2023-02-16 04:16:47,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637274431] [2023-02-16 04:16:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637274431] [2023-02-16 04:16:47,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637274431] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:16:47,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592931735] [2023-02-16 04:16:47,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:16:47,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:16:47,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:16:47,533 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,580 INFO L93 Difference]: Finished difference Result 61 states and 78 transitions. [2023-02-16 04:16:47,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:16:47,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-16 04:16:47,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,581 INFO L225 Difference]: With dead ends: 61 [2023-02-16 04:16:47,581 INFO L226 Difference]: Without dead ends: 60 [2023-02-16 04:16:47,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:16:47,582 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-16 04:16:47,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2023-02-16 04:16:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2023-02-16 04:16:47,589 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 9 [2023-02-16 04:16:47,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,589 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2023-02-16 04:16:47,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2023-02-16 04:16:47,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:16:47,590 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-16 04:16:47,590 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:47,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,591 INFO L85 PathProgramCache]: Analyzing trace with hash -447161458, now seen corresponding path program 1 times [2023-02-16 04:16:47,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364218334] [2023-02-16 04:16:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364218334] [2023-02-16 04:16:47,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364218334] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:16:47,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651655924] [2023-02-16 04:16:47,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:16:47,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:16:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:16:47,617 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,661 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2023-02-16 04:16:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:16:47,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-16 04:16:47,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,663 INFO L225 Difference]: With dead ends: 98 [2023-02-16 04:16:47,664 INFO L226 Difference]: Without dead ends: 97 [2023-02-16 04:16:47,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:16:47,665 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 29 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 27 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-16 04:16:47,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2023-02-16 04:16:47,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 85 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2023-02-16 04:16:47,675 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 9 [2023-02-16 04:16:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,675 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2023-02-16 04:16:47,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2023-02-16 04:16:47,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 04:16:47,676 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-16 04:16:47,676 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:47,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash -977103247, now seen corresponding path program 1 times [2023-02-16 04:16:47,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793150818] [2023-02-16 04:16:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793150818] [2023-02-16 04:16:47,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793150818] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:16:47,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258659334] [2023-02-16 04:16:47,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:16:47,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:16:47,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:16:47,706 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,734 INFO L93 Difference]: Finished difference Result 86 states and 121 transitions. [2023-02-16 04:16:47,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:16:47,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 04:16:47,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,735 INFO L225 Difference]: With dead ends: 86 [2023-02-16 04:16:47,735 INFO L226 Difference]: Without dead ends: 85 [2023-02-16 04:16:47,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:16:47,736 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-02-16 04:16:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-02-16 04:16:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 84 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) [2023-02-16 04:16:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2023-02-16 04:16:47,744 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 10 [2023-02-16 04:16:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,744 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2023-02-16 04:16:47,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2023-02-16 04:16:47,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-16 04:16:47,745 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-16 04:16:47,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:47,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash -225429520, now seen corresponding path program 1 times [2023-02-16 04:16:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606823596] [2023-02-16 04:16:47,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606823596] [2023-02-16 04:16:47,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606823596] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:16:47,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:16:47,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:16:47,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425227117] [2023-02-16 04:16:47,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:16:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:16:47,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:16:47,769 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:47,778 INFO L93 Difference]: Finished difference Result 85 states and 115 transitions. [2023-02-16 04:16:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:16:47,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-16 04:16:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:47,779 INFO L225 Difference]: With dead ends: 85 [2023-02-16 04:16:47,780 INFO L226 Difference]: Without dead ends: 84 [2023-02-16 04:16:47,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:16:47,780 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:47,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-16 04:16:47,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-02-16 04:16:47,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.379746835443038) internal successors, (109), 83 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2023-02-16 04:16:47,788 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 11 [2023-02-16 04:16:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:47,789 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2023-02-16 04:16:47,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:47,789 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2023-02-16 04:16:47,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-16 04:16:47,789 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:47,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:47,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-16 04:16:47,790 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:47,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:47,791 INFO L85 PathProgramCache]: Analyzing trace with hash -458138511, now seen corresponding path program 1 times [2023-02-16 04:16:47,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:47,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961527652] [2023-02-16 04:16:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:47,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961527652] [2023-02-16 04:16:47,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961527652] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:47,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312681650] [2023-02-16 04:16:47,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:47,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:47,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:47,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:47,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 04:16:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:47,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:16:47,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:47,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312681650] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:47,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:47,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-02-16 04:16:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968774752] [2023-02-16 04:16:47,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:47,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 04:16:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:47,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 04:16:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-02-16 04:16:47,986 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:48,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:48,354 INFO L93 Difference]: Finished difference Result 214 states and 298 transitions. [2023-02-16 04:16:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-16 04:16:48,354 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 14 [2023-02-16 04:16:48,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:48,357 INFO L225 Difference]: With dead ends: 214 [2023-02-16 04:16:48,357 INFO L226 Difference]: Without dead ends: 211 [2023-02-16 04:16:48,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=768, Unknown=0, NotChecked=0, Total=1122 [2023-02-16 04:16:48,360 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 183 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:48,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 30 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:16:48,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-02-16 04:16:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 110. [2023-02-16 04:16:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:48,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2023-02-16 04:16:48,385 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 14 [2023-02-16 04:16:48,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:48,385 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2023-02-16 04:16:48,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:48,386 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2023-02-16 04:16:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 04:16:48,387 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:48,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-16 04:16:48,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-16 04:16:48,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:48,593 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:48,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1317391881, now seen corresponding path program 1 times [2023-02-16 04:16:48,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:48,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747315190] [2023-02-16 04:16:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:48,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:48,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:48,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747315190] [2023-02-16 04:16:48,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747315190] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:48,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559538092] [2023-02-16 04:16:48,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:48,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:48,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:48,693 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:48,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 04:16:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:48,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:16:48,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:48,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:48,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559538092] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:48,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:48,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-02-16 04:16:48,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713246123] [2023-02-16 04:16:48,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:48,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 04:16:48,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 04:16:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-02-16 04:16:48,864 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:49,031 INFO L93 Difference]: Finished difference Result 229 states and 287 transitions. [2023-02-16 04:16:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-16 04:16:49,031 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-16 04:16:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:49,032 INFO L225 Difference]: With dead ends: 229 [2023-02-16 04:16:49,032 INFO L226 Difference]: Without dead ends: 228 [2023-02-16 04:16:49,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=269, Unknown=0, NotChecked=0, Total=420 [2023-02-16 04:16:49,034 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 130 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:49,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 32 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:16:49,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-02-16 04:16:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 170. [2023-02-16 04:16:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 167 states have (on average 1.2455089820359282) internal successors, (208), 169 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 208 transitions. [2023-02-16 04:16:49,055 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 208 transitions. Word has length 15 [2023-02-16 04:16:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:49,055 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 208 transitions. [2023-02-16 04:16:49,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 208 transitions. [2023-02-16 04:16:49,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 04:16:49,056 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:49,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:49,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 04:16:49,261 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,SelfDestructingSolverStorable9 [2023-02-16 04:16:49,261 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)] === [2023-02-16 04:16:49,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash -730743378, now seen corresponding path program 1 times [2023-02-16 04:16:49,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:49,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800435002] [2023-02-16 04:16:49,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:49,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:49,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:49,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800435002] [2023-02-16 04:16:49,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800435002] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:49,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611252256] [2023-02-16 04:16:49,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:49,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:49,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:49,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:49,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 04:16:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:49,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:16:49,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:49,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:49,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611252256] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:49,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:49,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-16 04:16:49,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82848949] [2023-02-16 04:16:49,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:49,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 04:16:49,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:49,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 04:16:49,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-16 04:16:49,402 INFO L87 Difference]: Start difference. First operand 170 states and 208 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:49,466 INFO L93 Difference]: Finished difference Result 378 states and 473 transitions. [2023-02-16 04:16:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 04:16:49,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 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 19 [2023-02-16 04:16:49,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:49,467 INFO L225 Difference]: With dead ends: 378 [2023-02-16 04:16:49,468 INFO L226 Difference]: Without dead ends: 377 [2023-02-16 04:16:49,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-16 04:16:49,468 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 47 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:49,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 44 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:16:49,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-02-16 04:16:49,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 277. [2023-02-16 04:16:49,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.2372262773722629) internal successors, (339), 276 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 339 transitions. [2023-02-16 04:16:49,482 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 339 transitions. Word has length 19 [2023-02-16 04:16:49,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:49,483 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 339 transitions. [2023-02-16 04:16:49,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:49,483 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 339 transitions. [2023-02-16 04:16:49,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-16 04:16:49,484 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:49,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-16 04:16:49,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 04:16:49,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:49,689 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:49,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2017559647, now seen corresponding path program 1 times [2023-02-16 04:16:49,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:49,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472472502] [2023-02-16 04:16:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:49,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:16:49,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:49,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472472502] [2023-02-16 04:16:49,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472472502] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:49,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971389717] [2023-02-16 04:16:49,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:49,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:49,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:49,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:49,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 04:16:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:49,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 04:16:49,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:16:49,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:16:50,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971389717] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:50,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:50,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2023-02-16 04:16:50,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857487240] [2023-02-16 04:16:50,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:50,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-16 04:16:50,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:50,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-16 04:16:50,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-02-16 04:16:50,022 INFO L87 Difference]: Start difference. First operand 277 states and 339 transitions. Second operand has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:50,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:50,443 INFO L93 Difference]: Finished difference Result 511 states and 639 transitions. [2023-02-16 04:16:50,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-16 04:16:50,443 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-16 04:16:50,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:50,445 INFO L225 Difference]: With dead ends: 511 [2023-02-16 04:16:50,445 INFO L226 Difference]: Without dead ends: 509 [2023-02-16 04:16:50,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=513, Invalid=1127, Unknown=0, NotChecked=0, Total=1640 [2023-02-16 04:16:50,446 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 73 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:50,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 7 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:16:50,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-02-16 04:16:50,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 311. [2023-02-16 04:16:50,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 308 states have (on average 1.2175324675324675) internal successors, (375), 310 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:50,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 375 transitions. [2023-02-16 04:16:50,472 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 375 transitions. Word has length 25 [2023-02-16 04:16:50,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:50,472 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 375 transitions. [2023-02-16 04:16:50,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:50,473 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 375 transitions. [2023-02-16 04:16:50,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 04:16:50,473 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:50,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-16 04:16:50,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 04:16:50,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:50,679 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:50,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash 678241780, now seen corresponding path program 2 times [2023-02-16 04:16:50,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:50,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576049240] [2023-02-16 04:16:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:50,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:50,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:50,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576049240] [2023-02-16 04:16:50,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576049240] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:50,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110811693] [2023-02-16 04:16:50,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:16:50,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:50,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:50,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 04:16:50,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:16:50,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:16:50,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:16:50,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:50,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:50,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110811693] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:50,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:50,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2023-02-16 04:16:50,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741271719] [2023-02-16 04:16:50,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:50,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-16 04:16:50,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-16 04:16:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2023-02-16 04:16:50,988 INFO L87 Difference]: Start difference. First operand 311 states and 375 transitions. Second operand has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:51,816 INFO L93 Difference]: Finished difference Result 1537 states and 1825 transitions. [2023-02-16 04:16:51,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-02-16 04:16:51,817 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-02-16 04:16:51,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:51,821 INFO L225 Difference]: With dead ends: 1537 [2023-02-16 04:16:51,821 INFO L226 Difference]: Without dead ends: 1536 [2023-02-16 04:16:51,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1687, Invalid=4475, Unknown=0, NotChecked=0, Total=6162 [2023-02-16 04:16:51,824 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 317 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:51,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 34 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:16:51,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2023-02-16 04:16:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 715. [2023-02-16 04:16:51,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 712 states have (on average 1.2148876404494382) internal successors, (865), 714 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 865 transitions. [2023-02-16 04:16:51,863 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 865 transitions. Word has length 30 [2023-02-16 04:16:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:51,863 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 865 transitions. [2023-02-16 04:16:51,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:51,864 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 865 transitions. [2023-02-16 04:16:51,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-16 04:16:51,867 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:51,867 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-16 04:16:51,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 04:16:52,071 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,SelfDestructingSolverStorable12 [2023-02-16 04:16:52,072 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 499781144, now seen corresponding path program 2 times [2023-02-16 04:16:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:52,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226858477] [2023-02-16 04:16:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:52,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:52,160 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:52,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:52,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226858477] [2023-02-16 04:16:52,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226858477] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:52,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083485351] [2023-02-16 04:16:52,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:16:52,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:52,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:52,162 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:52,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 04:16:52,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:16:52,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:16:52,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 04:16:52,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:52,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:52,574 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:52,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083485351] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:52,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:52,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-02-16 04:16:52,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353723818] [2023-02-16 04:16:52,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:52,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-16 04:16:52,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:52,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-16 04:16:52,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2023-02-16 04:16:52,577 INFO L87 Difference]: Start difference. First operand 715 states and 865 transitions. Second operand has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:53,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:53,659 INFO L93 Difference]: Finished difference Result 1329 states and 1575 transitions. [2023-02-16 04:16:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-16 04:16:53,660 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 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 [2023-02-16 04:16:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:53,663 INFO L225 Difference]: With dead ends: 1329 [2023-02-16 04:16:53,663 INFO L226 Difference]: Without dead ends: 1328 [2023-02-16 04:16:53,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1319, Invalid=2841, Unknown=0, NotChecked=0, Total=4160 [2023-02-16 04:16:53,664 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 522 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:53,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 106 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 04:16:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2023-02-16 04:16:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 886. [2023-02-16 04:16:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 883 states have (on average 1.2095130237825595) internal successors, (1068), 885 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1068 transitions. [2023-02-16 04:16:53,717 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1068 transitions. Word has length 33 [2023-02-16 04:16:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:53,718 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1068 transitions. [2023-02-16 04:16:53,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1068 transitions. [2023-02-16 04:16:53,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-16 04:16:53,720 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:53,720 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2023-02-16 04:16:53,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-16 04:16:53,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:53,925 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:53,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:53,925 INFO L85 PathProgramCache]: Analyzing trace with hash -746656358, now seen corresponding path program 1 times [2023-02-16 04:16:53,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:53,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981986343] [2023-02-16 04:16:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:53,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-16 04:16:53,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:53,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981986343] [2023-02-16 04:16:53,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981986343] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:53,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671298315] [2023-02-16 04:16:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:53,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:53,971 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:53,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 04:16:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:53,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 04:16:53,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:54,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:54,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671298315] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:54,124 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:54,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2023-02-16 04:16:54,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170973910] [2023-02-16 04:16:54,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:54,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-16 04:16:54,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:54,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-16 04:16:54,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2023-02-16 04:16:54,125 INFO L87 Difference]: Start difference. First operand 886 states and 1068 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:54,536 INFO L93 Difference]: Finished difference Result 3180 states and 3901 transitions. [2023-02-16 04:16:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-16 04:16:54,537 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 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 35 [2023-02-16 04:16:54,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:54,543 INFO L225 Difference]: With dead ends: 3180 [2023-02-16 04:16:54,544 INFO L226 Difference]: Without dead ends: 2976 [2023-02-16 04:16:54,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=545, Invalid=1015, Unknown=0, NotChecked=0, Total=1560 [2023-02-16 04:16:54,546 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 245 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:54,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 27 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:16:54,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2023-02-16 04:16:54,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 445. [2023-02-16 04:16:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 443 states have (on average 1.18510158013544) internal successors, (525), 444 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 525 transitions. [2023-02-16 04:16:54,593 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 525 transitions. Word has length 35 [2023-02-16 04:16:54,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:54,593 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 525 transitions. [2023-02-16 04:16:54,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:54,593 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 525 transitions. [2023-02-16 04:16:54,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-16 04:16:54,594 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:54,594 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:16:54,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:16:54,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:54,798 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)] === [2023-02-16 04:16:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:54,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1457588718, now seen corresponding path program 2 times [2023-02-16 04:16:54,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:54,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232529405] [2023-02-16 04:16:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:54,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:54,851 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:54,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:54,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232529405] [2023-02-16 04:16:54,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232529405] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:54,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874853069] [2023-02-16 04:16:54,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:16:54,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:54,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:54,853 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:54,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 04:16:54,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:16:54,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:16:54,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:16:54,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:54,910 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:54,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:55,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874853069] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:55,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:55,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-16 04:16:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951096100] [2023-02-16 04:16:55,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:55,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-16 04:16:55,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-16 04:16:55,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-02-16 04:16:55,002 INFO L87 Difference]: Start difference. First operand 445 states and 525 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:55,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:16:55,213 INFO L93 Difference]: Finished difference Result 1706 states and 2070 transitions. [2023-02-16 04:16:55,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-16 04:16:55,213 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 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 39 [2023-02-16 04:16:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:16:55,217 INFO L225 Difference]: With dead ends: 1706 [2023-02-16 04:16:55,217 INFO L226 Difference]: Without dead ends: 1705 [2023-02-16 04:16:55,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-02-16 04:16:55,218 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 149 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:16:55,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 83 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:16:55,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2023-02-16 04:16:55,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1203. [2023-02-16 04:16:55,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1201 states have (on average 1.1740216486261448) internal successors, (1410), 1202 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:55,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1410 transitions. [2023-02-16 04:16:55,322 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1410 transitions. Word has length 39 [2023-02-16 04:16:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:16:55,322 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1410 transitions. [2023-02-16 04:16:55,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:16:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1410 transitions. [2023-02-16 04:16:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 04:16:55,323 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:16:55,323 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-16 04:16:55,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 04:16:55,528 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,SelfDestructingSolverStorable15 [2023-02-16 04:16:55,528 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:16:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:16:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1726793311, now seen corresponding path program 3 times [2023-02-16 04:16:55,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:16:55,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121035970] [2023-02-16 04:16:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:16:55,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:16:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:16:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:55,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:16:55,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121035970] [2023-02-16 04:16:55,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121035970] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:16:55,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681084646] [2023-02-16 04:16:55,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:16:55,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:16:55,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:16:55,658 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:16:55,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 04:16:55,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-16 04:16:55,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:16:55,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-16 04:16:55,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:16:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:55,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:16:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:16:56,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681084646] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:16:56,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:16:56,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2023-02-16 04:16:56,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925663426] [2023-02-16 04:16:56,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:16:56,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-16 04:16:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:16:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-16 04:16:56,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2023-02-16 04:16:56,054 INFO L87 Difference]: Start difference. First operand 1203 states and 1410 transitions. Second operand has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:00,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:17:00,570 INFO L93 Difference]: Finished difference Result 10558 states and 12329 transitions. [2023-02-16 04:17:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2023-02-16 04:17:00,571 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 0 states have call successors, (0), 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 46 [2023-02-16 04:17:00,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:17:00,597 INFO L225 Difference]: With dead ends: 10558 [2023-02-16 04:17:00,597 INFO L226 Difference]: Without dead ends: 10557 [2023-02-16 04:17:00,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26171 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=12057, Invalid=43403, Unknown=0, NotChecked=0, Total=55460 [2023-02-16 04:17:00,607 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 868 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 04:17:00,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 43 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 04:17:00,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2023-02-16 04:17:01,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 3947. [2023-02-16 04:17:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.1842839036755386) internal successors, (4672), 3946 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 4672 transitions. [2023-02-16 04:17:01,228 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 4672 transitions. Word has length 46 [2023-02-16 04:17:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:17:01,228 INFO L495 AbstractCegarLoop]: Abstraction has 3947 states and 4672 transitions. [2023-02-16 04:17:01,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:01,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4672 transitions. [2023-02-16 04:17:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-16 04:17:01,229 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:17:01,229 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-02-16 04:17:01,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-16 04:17:01,434 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,SelfDestructingSolverStorable16 [2023-02-16 04:17:01,434 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:17:01,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:17:01,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2065951787, now seen corresponding path program 4 times [2023-02-16 04:17:01,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:17:01,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172164053] [2023-02-16 04:17:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:17:01,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:17:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:01,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:17:01,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172164053] [2023-02-16 04:17:01,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172164053] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:17:01,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827604080] [2023-02-16 04:17:01,672 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 04:17:01,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:01,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:17:01,681 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:17:01,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 04:17:01,711 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 04:17:01,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:17:01,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-16 04:17:01,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:17:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:02,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:17:02,464 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:02,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827604080] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:17:02,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:17:02,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 52 [2023-02-16 04:17:02,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450835790] [2023-02-16 04:17:02,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:17:02,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-02-16 04:17:02,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:17:02,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-02-16 04:17:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2023-02-16 04:17:02,466 INFO L87 Difference]: Start difference. First operand 3947 states and 4672 transitions. Second operand has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:15,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:17:15,719 INFO L93 Difference]: Finished difference Result 6896 states and 8060 transitions. [2023-02-16 04:17:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 410 states. [2023-02-16 04:17:15,720 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-02-16 04:17:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:17:15,736 INFO L225 Difference]: With dead ends: 6896 [2023-02-16 04:17:15,736 INFO L226 Difference]: Without dead ends: 6895 [2023-02-16 04:17:15,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101119 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=44916, Invalid=152664, Unknown=0, NotChecked=0, Total=197580 [2023-02-16 04:17:15,745 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2150 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2150 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 3632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-02-16 04:17:15,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2150 Valid, 224 Invalid, 3632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-16 04:17:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2023-02-16 04:17:16,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 4643. [2023-02-16 04:17:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4641 states have (on average 1.1831501831501832) internal successors, (5491), 4642 states have internal predecessors, (5491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:16,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 5491 transitions. [2023-02-16 04:17:16,498 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 5491 transitions. Word has length 60 [2023-02-16 04:17:16,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:17:16,498 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 5491 transitions. [2023-02-16 04:17:16,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 5491 transitions. [2023-02-16 04:17:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-16 04:17:16,500 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:17:16,500 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2023-02-16 04:17:16,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-02-16 04:17:16,706 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,SelfDestructingSolverStorable17 [2023-02-16 04:17:16,707 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:17:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:17:16,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1453726494, now seen corresponding path program 5 times [2023-02-16 04:17:16,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:17:16,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253849906] [2023-02-16 04:17:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:17:16,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:17:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:16,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:17:16,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253849906] [2023-02-16 04:17:16,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253849906] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:17:16,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701812167] [2023-02-16 04:17:16,879 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 04:17:16,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:16,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:17:16,881 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) [2023-02-16 04:17:16,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-16 04:17:16,914 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-02-16 04:17:16,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:17:16,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-16 04:17:16,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:17:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-02-16 04:17:17,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:17:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-02-16 04:17:17,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701812167] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:17:17,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:17:17,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 38 [2023-02-16 04:17:17,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979960121] [2023-02-16 04:17:17,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:17:17,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-16 04:17:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:17:17,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-16 04:17:17,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1222, Unknown=0, NotChecked=0, Total=1406 [2023-02-16 04:17:17,222 INFO L87 Difference]: Start difference. First operand 4643 states and 5491 transitions. Second operand has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:22,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:17:22,840 INFO L93 Difference]: Finished difference Result 12361 states and 14600 transitions. [2023-02-16 04:17:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2023-02-16 04:17:22,841 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-02-16 04:17:22,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:17:22,842 INFO L225 Difference]: With dead ends: 12361 [2023-02-16 04:17:22,842 INFO L226 Difference]: Without dead ends: 521 [2023-02-16 04:17:22,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22419 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=8533, Invalid=46927, Unknown=0, NotChecked=0, Total=55460 [2023-02-16 04:17:22,853 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 675 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 04:17:22,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 22 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 04:17:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-02-16 04:17:22,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 193. [2023-02-16 04:17:22,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 191 states have (on average 1.0994764397905759) internal successors, (210), 192 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 210 transitions. [2023-02-16 04:17:22,914 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 210 transitions. Word has length 62 [2023-02-16 04:17:22,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:17:22,914 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 210 transitions. [2023-02-16 04:17:22,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:22,914 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 210 transitions. [2023-02-16 04:17:22,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-16 04:17:22,915 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:17:22,915 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2023-02-16 04:17:22,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-16 04:17:23,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:23,120 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:17:23,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:17:23,120 INFO L85 PathProgramCache]: Analyzing trace with hash 727673482, now seen corresponding path program 6 times [2023-02-16 04:17:23,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:17:23,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174691017] [2023-02-16 04:17:23,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:17:23,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:17:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:23,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:17:23,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174691017] [2023-02-16 04:17:23,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174691017] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:17:23,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271531074] [2023-02-16 04:17:23,356 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 04:17:23,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:23,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:17:23,365 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) [2023-02-16 04:17:23,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-16 04:17:23,394 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2023-02-16 04:17:23,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:17:23,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 04:17:23,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:17:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:23,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:17:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:23,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271531074] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:17:23,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:17:23,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15, 15] total 50 [2023-02-16 04:17:23,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479390311] [2023-02-16 04:17:23,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:17:23,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-02-16 04:17:23,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:17:23,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-02-16 04:17:23,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=553, Invalid=1997, Unknown=0, NotChecked=0, Total=2550 [2023-02-16 04:17:23,968 INFO L87 Difference]: Start difference. First operand 193 states and 210 transitions. Second operand has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:17:26,082 INFO L93 Difference]: Finished difference Result 436 states and 458 transitions. [2023-02-16 04:17:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-02-16 04:17:26,082 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 0 states have call successors, (0), 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 62 [2023-02-16 04:17:26,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:17:26,083 INFO L225 Difference]: With dead ends: 436 [2023-02-16 04:17:26,083 INFO L226 Difference]: Without dead ends: 435 [2023-02-16 04:17:26,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7684 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=5282, Invalid=14458, Unknown=0, NotChecked=0, Total=19740 [2023-02-16 04:17:26,086 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 974 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-16 04:17:26,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 64 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-16 04:17:26,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-02-16 04:17:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 183. [2023-02-16 04:17:26,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.1160220994475138) internal successors, (202), 182 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:26,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 202 transitions. [2023-02-16 04:17:26,148 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 202 transitions. Word has length 62 [2023-02-16 04:17:26,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:17:26,148 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 202 transitions. [2023-02-16 04:17:26,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 202 transitions. [2023-02-16 04:17:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-02-16 04:17:26,149 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:17:26,149 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-16 04:17:26,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:17:26,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:26,354 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:17:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:17:26,354 INFO L85 PathProgramCache]: Analyzing trace with hash -362593675, now seen corresponding path program 7 times [2023-02-16 04:17:26,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:17:26,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899958388] [2023-02-16 04:17:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:17:26,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:17:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:26,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:17:26,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899958388] [2023-02-16 04:17:26,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899958388] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:17:26,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438892401] [2023-02-16 04:17:26,641 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 04:17:26,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:26,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:17:26,642 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) [2023-02-16 04:17:26,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-16 04:17:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:26,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-16 04:17:26,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:17:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:27,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:17:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:27,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438892401] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:17:27,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:17:27,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19, 19] total 64 [2023-02-16 04:17:27,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911498500] [2023-02-16 04:17:27,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:17:27,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-02-16 04:17:27,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:17:27,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-02-16 04:17:27,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3289, Unknown=0, NotChecked=0, Total=4160 [2023-02-16 04:17:27,527 INFO L87 Difference]: Start difference. First operand 183 states and 202 transitions. Second operand has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:17:31,635 INFO L93 Difference]: Finished difference Result 616 states and 647 transitions. [2023-02-16 04:17:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2023-02-16 04:17:31,636 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-02-16 04:17:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:17:31,637 INFO L225 Difference]: With dead ends: 616 [2023-02-16 04:17:31,637 INFO L226 Difference]: Without dead ends: 615 [2023-02-16 04:17:31,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16721 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=10716, Invalid=30290, Unknown=0, NotChecked=0, Total=41006 [2023-02-16 04:17:31,642 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1192 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-16 04:17:31,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 82 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-16 04:17:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-02-16 04:17:31,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 209. [2023-02-16 04:17:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 207 states have (on average 1.144927536231884) internal successors, (237), 208 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 237 transitions. [2023-02-16 04:17:31,737 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 237 transitions. Word has length 78 [2023-02-16 04:17:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:17:31,738 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 237 transitions. [2023-02-16 04:17:31,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 237 transitions. [2023-02-16 04:17:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-02-16 04:17:31,739 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:17:31,739 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:17:31,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-16 04:17:31,943 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,SelfDestructingSolverStorable20 [2023-02-16 04:17:31,943 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)] === [2023-02-16 04:17:31,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:17:31,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1221737874, now seen corresponding path program 3 times [2023-02-16 04:17:31,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:17:31,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883295886] [2023-02-16 04:17:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:17:31,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:17:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:32,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:17:32,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883295886] [2023-02-16 04:17:32,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883295886] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:17:32,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753401147] [2023-02-16 04:17:32,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:17:32,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:32,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:17:32,162 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) [2023-02-16 04:17:32,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-16 04:17:32,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-16 04:17:32,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:17:32,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 04:17:32,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:17:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:32,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:17:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:32,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753401147] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:17:32,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:17:32,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-02-16 04:17:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693626228] [2023-02-16 04:17:32,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:17:32,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-16 04:17:32,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:17:32,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-16 04:17:32,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-02-16 04:17:32,487 INFO L87 Difference]: Start difference. First operand 209 states and 237 transitions. Second operand has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:33,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:17:33,184 INFO L93 Difference]: Finished difference Result 935 states and 983 transitions. [2023-02-16 04:17:33,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-02-16 04:17:33,184 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 0 states have call successors, (0), 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 79 [2023-02-16 04:17:33,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:17:33,201 INFO L225 Difference]: With dead ends: 935 [2023-02-16 04:17:33,201 INFO L226 Difference]: Without dead ends: 934 [2023-02-16 04:17:33,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-02-16 04:17:33,202 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 530 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:17:33,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 161 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:17:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-02-16 04:17:33,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 261. [2023-02-16 04:17:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 259 states have (on average 1.135135135135135) internal successors, (294), 260 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:33,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 294 transitions. [2023-02-16 04:17:33,283 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 294 transitions. Word has length 79 [2023-02-16 04:17:33,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:17:33,283 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 294 transitions. [2023-02-16 04:17:33,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 294 transitions. [2023-02-16 04:17:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-02-16 04:17:33,284 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:17:33,284 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 1, 1, 1, 1] [2023-02-16 04:17:33,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-16 04:17:33,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:33,488 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:17:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:17:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash 698004038, now seen corresponding path program 3 times [2023-02-16 04:17:33,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:17:33,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85468164] [2023-02-16 04:17:33,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:17:33,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:17:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:33,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:17:33,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85468164] [2023-02-16 04:17:33,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85468164] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:17:33,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717491006] [2023-02-16 04:17:33,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:17:33,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:33,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:17:33,945 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) [2023-02-16 04:17:33,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-16 04:17:34,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-16 04:17:34,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:17:34,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-16 04:17:34,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:17:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:34,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:17:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:35,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717491006] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:17:35,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:17:35,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 91 [2023-02-16 04:17:35,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244678024] [2023-02-16 04:17:35,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:17:35,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2023-02-16 04:17:35,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:17:35,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2023-02-16 04:17:35,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1637, Invalid=6735, Unknown=0, NotChecked=0, Total=8372 [2023-02-16 04:17:35,566 INFO L87 Difference]: Start difference. First operand 261 states and 294 transitions. Second operand has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:40,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:17:40,789 INFO L93 Difference]: Finished difference Result 652 states and 700 transitions. [2023-02-16 04:17:40,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-02-16 04:17:40,790 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 0 states have call successors, (0), 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 93 [2023-02-16 04:17:40,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:17:40,791 INFO L225 Difference]: With dead ends: 652 [2023-02-16 04:17:40,791 INFO L226 Difference]: Without dead ends: 651 [2023-02-16 04:17:40,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10731 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=8689, Invalid=21761, Unknown=0, NotChecked=0, Total=30450 [2023-02-16 04:17:40,794 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 657 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 3691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:17:40,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 216 Invalid, 3691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-16 04:17:40,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-02-16 04:17:41,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 357. [2023-02-16 04:17:41,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 355 states have (on average 1.0985915492957747) internal successors, (390), 356 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:41,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 390 transitions. [2023-02-16 04:17:41,020 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 390 transitions. Word has length 93 [2023-02-16 04:17:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:17:41,020 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 390 transitions. [2023-02-16 04:17:41,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:17:41,021 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 390 transitions. [2023-02-16 04:17:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-02-16 04:17:41,021 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:17:41,021 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2023-02-16 04:17:41,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-16 04:17:41,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:41,226 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:17:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:17:41,227 INFO L85 PathProgramCache]: Analyzing trace with hash 873996727, now seen corresponding path program 8 times [2023-02-16 04:17:41,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:17:41,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735624626] [2023-02-16 04:17:41,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:17:41,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:17:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:17:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:41,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:17:41,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735624626] [2023-02-16 04:17:41,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735624626] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:17:41,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337711590] [2023-02-16 04:17:41,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:17:41,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:17:41,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:17:41,604 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:17:41,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-16 04:17:41,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:17:41,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:17:41,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-16 04:17:41,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:17:42,558 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:42,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:17:43,352 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:17:43,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337711590] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:17:43,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:17:43,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2023-02-16 04:17:43,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209139384] [2023-02-16 04:17:43,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:17:43,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-02-16 04:17:43,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:17:43,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-02-16 04:17:43,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=7651, Unknown=0, NotChecked=0, Total=8930 [2023-02-16 04:17:43,356 INFO L87 Difference]: Start difference. First operand 357 states and 390 transitions. Second operand has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:18:02,271 INFO L93 Difference]: Finished difference Result 1383 states and 1444 transitions. [2023-02-16 04:18:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2023-02-16 04:18:02,272 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 0 states have call successors, (0), 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 94 [2023-02-16 04:18:02,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:18:02,274 INFO L225 Difference]: With dead ends: 1383 [2023-02-16 04:18:02,274 INFO L226 Difference]: Without dead ends: 1382 [2023-02-16 04:18:02,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74825 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=38066, Invalid=142134, Unknown=0, NotChecked=0, Total=180200 [2023-02-16 04:18:02,281 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2810 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 8403 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 9096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 8403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-02-16 04:18:02,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 58 Invalid, 9096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 8403 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-02-16 04:18:02,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2023-02-16 04:18:02,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 401. [2023-02-16 04:18:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 399 states have (on average 1.087719298245614) internal successors, (434), 400 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 434 transitions. [2023-02-16 04:18:02,573 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 434 transitions. Word has length 94 [2023-02-16 04:18:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:18:02,573 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 434 transitions. [2023-02-16 04:18:02,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 434 transitions. [2023-02-16 04:18:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-02-16 04:18:02,574 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:18:02,574 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1] [2023-02-16 04:18:02,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-16 04:18:02,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-02-16 04:18:02,779 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:18:02,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:18:02,780 INFO L85 PathProgramCache]: Analyzing trace with hash -718111200, now seen corresponding path program 9 times [2023-02-16 04:18:02,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:18:02,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505550664] [2023-02-16 04:18:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:18:02,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:18:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:18:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:03,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:18:03,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505550664] [2023-02-16 04:18:03,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505550664] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:18:03,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209470733] [2023-02-16 04:18:03,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:18:03,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:18:03,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:18:03,149 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:18:03,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-16 04:18:03,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-16 04:18:03,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:18:03,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-16 04:18:03,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:18:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:03,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:18:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:04,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209470733] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:18:04,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:18:04,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 23, 23] total 78 [2023-02-16 04:18:04,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717862502] [2023-02-16 04:18:04,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:18:04,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2023-02-16 04:18:04,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:18:04,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2023-02-16 04:18:04,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1260, Invalid=4902, Unknown=0, NotChecked=0, Total=6162 [2023-02-16 04:18:04,332 INFO L87 Difference]: Start difference. First operand 401 states and 434 transitions. Second operand has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:11,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:18:11,891 INFO L93 Difference]: Finished difference Result 1023 states and 1064 transitions. [2023-02-16 04:18:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-02-16 04:18:11,891 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 0 states have call successors, (0), 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 94 [2023-02-16 04:18:11,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:18:11,892 INFO L225 Difference]: With dead ends: 1023 [2023-02-16 04:18:11,893 INFO L226 Difference]: Without dead ends: 1022 [2023-02-16 04:18:11,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28693 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=17823, Invalid=51083, Unknown=0, NotChecked=0, Total=68906 [2023-02-16 04:18:11,897 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2100 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-16 04:18:11,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 98 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-16 04:18:11,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-02-16 04:18:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 363. [2023-02-16 04:18:12,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 361 states have (on average 1.0997229916897506) internal successors, (397), 362 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:12,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 397 transitions. [2023-02-16 04:18:12,178 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 397 transitions. Word has length 94 [2023-02-16 04:18:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:18:12,179 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 397 transitions. [2023-02-16 04:18:12,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:12,179 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 397 transitions. [2023-02-16 04:18:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-02-16 04:18:12,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:18:12,180 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-02-16 04:18:12,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-16 04:18:12,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:18:12,385 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:18:12,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:18:12,385 INFO L85 PathProgramCache]: Analyzing trace with hash -190624373, now seen corresponding path program 10 times [2023-02-16 04:18:12,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:18:12,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095215069] [2023-02-16 04:18:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:18:12,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:18:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:18:12,856 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:12,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:18:12,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095215069] [2023-02-16 04:18:12,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095215069] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:18:12,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715852413] [2023-02-16 04:18:12,857 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 04:18:12,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:18:12,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:18:12,858 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:18:12,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-16 04:18:12,907 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 04:18:12,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:18:12,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-16 04:18:12,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:18:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:13,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:18:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:14,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715852413] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:18:14,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:18:14,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2023-02-16 04:18:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278315348] [2023-02-16 04:18:14,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:18:14,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2023-02-16 04:18:14,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:18:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2023-02-16 04:18:14,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2779, Invalid=11263, Unknown=0, NotChecked=0, Total=14042 [2023-02-16 04:18:14,698 INFO L87 Difference]: Start difference. First operand 363 states and 397 transitions. Second operand has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:47,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:18:47,380 INFO L93 Difference]: Finished difference Result 2325 states and 2387 transitions. [2023-02-16 04:18:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 602 states. [2023-02-16 04:18:47,381 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 0 states have call successors, (0), 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 110 [2023-02-16 04:18:47,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:18:47,383 INFO L225 Difference]: With dead ends: 2325 [2023-02-16 04:18:47,383 INFO L226 Difference]: Without dead ends: 2324 [2023-02-16 04:18:47,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 698 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229628 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=98873, Invalid=390427, Unknown=0, NotChecked=0, Total=489300 [2023-02-16 04:18:47,402 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7404 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13974 mSolverCounterSat, 1806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7404 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1806 IncrementalHoareTripleChecker+Valid, 13974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-02-16 04:18:47,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7404 Valid, 30 Invalid, 15780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1806 Valid, 13974 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-02-16 04:18:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2023-02-16 04:18:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 389. [2023-02-16 04:18:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 387 states have (on average 1.103359173126615) internal successors, (427), 388 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 427 transitions. [2023-02-16 04:18:47,751 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 427 transitions. Word has length 110 [2023-02-16 04:18:47,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:18:47,753 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 427 transitions. [2023-02-16 04:18:47,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:18:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 427 transitions. [2023-02-16 04:18:47,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-02-16 04:18:47,754 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:18:47,754 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1] [2023-02-16 04:18:47,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-16 04:18:47,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:18:47,959 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:18:47,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:18:47,959 INFO L85 PathProgramCache]: Analyzing trace with hash 69722294, now seen corresponding path program 11 times [2023-02-16 04:18:47,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:18:47,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966746820] [2023-02-16 04:18:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:18:47,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:18:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:18:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:48,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:18:48,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966746820] [2023-02-16 04:18:48,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966746820] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:18:48,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824468859] [2023-02-16 04:18:48,573 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 04:18:48,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:18:48,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:18:48,574 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:18:48,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-16 04:18:48,634 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2023-02-16 04:18:48,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:18:48,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-16 04:18:48,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:18:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:49,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:18:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:18:50,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824468859] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:18:50,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:18:50,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 136 [2023-02-16 04:18:50,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461254164] [2023-02-16 04:18:50,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:18:50,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2023-02-16 04:18:50,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:18:50,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2023-02-16 04:18:50,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3670, Invalid=14962, Unknown=0, NotChecked=0, Total=18632 [2023-02-16 04:18:50,685 INFO L87 Difference]: Start difference. First operand 389 states and 427 transitions. Second operand has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:19:46,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:19:46,045 INFO L93 Difference]: Finished difference Result 2785 states and 2855 transitions. [2023-02-16 04:19:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 799 states. [2023-02-16 04:19:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 0 states have call successors, (0), 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 126 [2023-02-16 04:19:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:19:46,049 INFO L225 Difference]: With dead ends: 2785 [2023-02-16 04:19:46,049 INFO L226 Difference]: Without dead ends: 2784 [2023-02-16 04:19:46,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 910 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400882 ImplicationChecksByTransitivity, 41.6s TimeCoverageRelationStatistics Valid=165156, Invalid=665676, Unknown=0, NotChecked=0, Total=830832 [2023-02-16 04:19:46,083 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10167 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 22513 mSolverCounterSat, 2580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10167 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 25093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2580 IncrementalHoareTripleChecker+Valid, 22513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-02-16 04:19:46,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10167 Valid, 38 Invalid, 25093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2580 Valid, 22513 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-02-16 04:19:46,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2023-02-16 04:19:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 424. [2023-02-16 04:19:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 422 states have (on average 1.1090047393364928) internal successors, (468), 423 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:19:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 468 transitions. [2023-02-16 04:19:46,596 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 468 transitions. Word has length 126 [2023-02-16 04:19:46,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:19:46,597 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 468 transitions. [2023-02-16 04:19:46,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:19:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 468 transitions. [2023-02-16 04:19:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-02-16 04:19:46,598 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:19:46,598 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-16 04:19:46,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-16 04:19:46,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:19:46,803 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:19:46,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:19:46,803 INFO L85 PathProgramCache]: Analyzing trace with hash 326639796, now seen corresponding path program 12 times [2023-02-16 04:19:46,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:19:46,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653233915] [2023-02-16 04:19:46,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:19:46,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:19:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:19:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:19:47,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:19:47,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653233915] [2023-02-16 04:19:47,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653233915] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:19:47,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379473197] [2023-02-16 04:19:47,439 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 04:19:47,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:19:47,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:19:47,440 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:19:47,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-16 04:19:47,490 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2023-02-16 04:19:47,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:19:47,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 52 conjunts are in the unsatisfiable core [2023-02-16 04:19:47,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:19:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:19:48,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:19:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:19:48,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379473197] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:19:48,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:19:48,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 50, 29] total 106 [2023-02-16 04:19:48,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496650279] [2023-02-16 04:19:48,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:19:48,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2023-02-16 04:19:48,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:19:48,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2023-02-16 04:19:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2968, Invalid=8374, Unknown=0, NotChecked=0, Total=11342 [2023-02-16 04:19:48,974 INFO L87 Difference]: Start difference. First operand 424 states and 468 transitions. Second operand has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:20:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:20:25,933 INFO L93 Difference]: Finished difference Result 3576 states and 3659 transitions. [2023-02-16 04:20:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 551 states. [2023-02-16 04:20:25,933 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 0 states have call successors, (0), 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 130 [2023-02-16 04:20:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:20:25,937 INFO L225 Difference]: With dead ends: 3576 [2023-02-16 04:20:25,937 INFO L226 Difference]: Without dead ends: 3575 [2023-02-16 04:20:25,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 630 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164785 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=59782, Invalid=339010, Unknown=0, NotChecked=0, Total=398792 [2023-02-16 04:20:25,954 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 5287 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 45257 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5287 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 46301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 45257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-02-16 04:20:25,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5287 Valid, 3863 Invalid, 46301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1044 Valid, 45257 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2023-02-16 04:20:25,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2023-02-16 04:20:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 484. [2023-02-16 04:20:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 482 states have (on average 1.1514522821576763) internal successors, (555), 483 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:20:26,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 555 transitions. [2023-02-16 04:20:26,445 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 555 transitions. Word has length 130 [2023-02-16 04:20:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:20:26,445 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 555 transitions. [2023-02-16 04:20:26,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:20:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 555 transitions. [2023-02-16 04:20:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-02-16 04:20:26,446 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:20:26,446 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2023-02-16 04:20:26,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-16 04:20:26,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-16 04:20:26,651 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:20:26,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:20:26,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1421333913, now seen corresponding path program 13 times [2023-02-16 04:20:26,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:20:26,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680651000] [2023-02-16 04:20:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:20:26,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:20:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:20:27,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:20:27,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:20:27,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680651000] [2023-02-16 04:20:27,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680651000] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:20:27,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640177251] [2023-02-16 04:20:27,398 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 04:20:27,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:20:27,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:20:27,399 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:20:27,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-16 04:20:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:20:27,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 43 conjunts are in the unsatisfiable core [2023-02-16 04:20:27,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:20:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:20:28,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:20:29,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:20:29,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640177251] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:20:29,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:20:29,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 41, 41] total 128 [2023-02-16 04:20:29,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492801328] [2023-02-16 04:20:29,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:20:29,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2023-02-16 04:20:29,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:20:29,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2023-02-16 04:20:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2889, Invalid=13623, Unknown=0, NotChecked=0, Total=16512 [2023-02-16 04:20:29,873 INFO L87 Difference]: Start difference. First operand 484 states and 555 transitions. Second operand has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:20:57,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:20:57,971 INFO L93 Difference]: Finished difference Result 1979 states and 2081 transitions. [2023-02-16 04:20:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2023-02-16 04:20:57,972 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 0 states have call successors, (0), 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 140 [2023-02-16 04:20:57,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:20:57,974 INFO L225 Difference]: With dead ends: 1979 [2023-02-16 04:20:57,974 INFO L226 Difference]: Without dead ends: 1978 [2023-02-16 04:20:57,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 538 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134886 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=80398, Invalid=210662, Unknown=0, NotChecked=0, Total=291060 [2023-02-16 04:20:57,986 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3341 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 3680 mSolverCounterSat, 1174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 4854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1174 IncrementalHoareTripleChecker+Valid, 3680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-02-16 04:20:57,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 194 Invalid, 4854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1174 Valid, 3680 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-02-16 04:20:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2023-02-16 04:20:58,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 508. [2023-02-16 04:20:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 506 states have (on average 1.1442687747035574) internal successors, (579), 507 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:20:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 579 transitions. [2023-02-16 04:20:58,786 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 579 transitions. Word has length 140 [2023-02-16 04:20:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:20:58,786 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 579 transitions. [2023-02-16 04:20:58,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:20:58,787 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 579 transitions. [2023-02-16 04:20:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-02-16 04:20:58,788 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:20:58,788 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-16 04:20:58,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-02-16 04:20:58,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-16 04:20:58,992 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:20:58,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:20:58,992 INFO L85 PathProgramCache]: Analyzing trace with hash 644268994, now seen corresponding path program 14 times [2023-02-16 04:20:58,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:20:58,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588576992] [2023-02-16 04:20:58,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:20:58,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:20:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:20:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:20:59,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:20:59,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588576992] [2023-02-16 04:20:59,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588576992] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:20:59,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520974469] [2023-02-16 04:20:59,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:20:59,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:20:59,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:20:59,716 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:20:59,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-16 04:20:59,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:20:59,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:20:59,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-16 04:20:59,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:21:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:21:00,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:21:01,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:21:01,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520974469] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:21:01,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:21:01,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 30, 30] total 112 [2023-02-16 04:21:01,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806511072] [2023-02-16 04:21:01,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:21:01,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2023-02-16 04:21:01,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:21:01,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2023-02-16 04:21:01,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2992, Invalid=9664, Unknown=0, NotChecked=0, Total=12656 [2023-02-16 04:21:01,445 INFO L87 Difference]: Start difference. First operand 508 states and 579 transitions. Second operand has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:21:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:21:16,124 INFO L93 Difference]: Finished difference Result 1705 states and 1769 transitions. [2023-02-16 04:21:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 347 states. [2023-02-16 04:21:16,124 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 0 states have call successors, (0), 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 141 [2023-02-16 04:21:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:21:16,126 INFO L225 Difference]: With dead ends: 1705 [2023-02-16 04:21:16,126 INFO L226 Difference]: Without dead ends: 1704 [2023-02-16 04:21:16,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68495 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=38422, Invalid=126820, Unknown=0, NotChecked=0, Total=165242 [2023-02-16 04:21:16,134 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4118 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-16 04:21:16,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 86 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-16 04:21:16,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2023-02-16 04:21:16,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 543. [2023-02-16 04:21:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 541 states have (on average 1.1423290203327172) internal successors, (618), 542 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:21:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 618 transitions. [2023-02-16 04:21:16,871 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 618 transitions. Word has length 141 [2023-02-16 04:21:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:21:16,872 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 618 transitions. [2023-02-16 04:21:16,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:21:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 618 transitions. [2023-02-16 04:21:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-02-16 04:21:16,873 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:21:16,873 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1] [2023-02-16 04:21:16,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-02-16 04:21:17,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:21:17,077 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-16 04:21:17,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:21:17,077 INFO L85 PathProgramCache]: Analyzing trace with hash 214853537, now seen corresponding path program 15 times [2023-02-16 04:21:17,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:21:17,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671118270] [2023-02-16 04:21:17,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:21:17,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:21:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:21:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:21:17,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:21:17,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671118270] [2023-02-16 04:21:17,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671118270] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:21:17,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483905281] [2023-02-16 04:21:17,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:21:17,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:21:17,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:21:17,701 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:21:17,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-16 04:21:17,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2023-02-16 04:21:17,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:21:17,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-16 04:21:17,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:21:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:21:18,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:21:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:21:19,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483905281] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:21:19,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:21:19,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 35, 35] total 120 [2023-02-16 04:21:19,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275150216] [2023-02-16 04:21:19,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:21:19,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2023-02-16 04:21:19,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:21:19,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2023-02-16 04:21:19,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2853, Invalid=11667, Unknown=0, NotChecked=0, Total=14520 [2023-02-16 04:21:19,409 INFO L87 Difference]: Start difference. First operand 543 states and 618 transitions. Second operand has 121 states, 120 states have (on average 3.5166666666666666) internal successors, (422), 121 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)