./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 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/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.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 fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:04:47,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:04:47,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:04:47,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:04:47,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:04:47,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:04:47,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:04:47,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:04:47,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:04:47,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:04:47,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:04:47,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:04:47,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:04:47,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:04:47,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:04:47,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:04:47,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:04:47,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:04:47,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:04:47,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:04:47,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:04:47,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:04:47,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:04:47,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:04:47,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:04:47,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:04:47,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:04:47,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:04:47,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:04:47,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:04:47,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:04:47,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:04:47,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:04:47,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:04:47,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:04:47,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:04:47,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:04:47,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:04:47,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:04:47,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:04:47,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:04:47,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 02:04:47,302 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:04:47,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:04:47,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:04:47,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:04:47,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 02:04:47,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 02:04:47,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:04:47,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:04:47,304 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:04:47,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:04:47,305 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:04:47,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:04:47,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:04:47,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 02:04:47,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 02:04:47,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 02:04:47,306 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 02:04:47,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:04:47,306 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:04:47,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 02:04:47,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:04:47,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:04:47,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 02:04:47,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:04:47,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:04:47,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 02:04:47,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 02:04:47,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:04:47,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 02:04:47,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 02:04:47,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 02:04:47,309 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 02:04:47,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 02:04:47,310 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 02:04:47,310 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 [2023-02-15 02:04:47,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:04:47,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:04:47,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:04:47,523 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:04:47,523 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:04:47,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2023-02-15 02:04:48,435 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:04:48,541 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:04:48,542 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2023-02-15 02:04:48,545 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c409daf36/5276bce7918b45d6bacddaa4d97ed96c/FLAGb904bf988 [2023-02-15 02:04:48,559 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c409daf36/5276bce7918b45d6bacddaa4d97ed96c [2023-02-15 02:04:48,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:04:48,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:04:48,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:04:48,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:04:48,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:04:48,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346c253f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48, skipping insertion in model container [2023-02-15 02:04:48,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:04:48,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:04:48,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:04:48,689 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:04:48,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:04:48,718 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:04:48,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48 WrapperNode [2023-02-15 02:04:48,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:04:48,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:04:48,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:04:48,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:04:48,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,741 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-02-15 02:04:48,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:04:48,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:04:48,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:04:48,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:04:48,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:04:48,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:04:48,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:04:48,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:04:48,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (1/1) ... [2023-02-15 02:04:48,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:04:48,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:48,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 02:04:48,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 02:04:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:04:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:04:48,879 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:04:48,881 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:04:48,994 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:04:48,998 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:04:48,999 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 02:04:49,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:04:49 BoogieIcfgContainer [2023-02-15 02:04:49,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:04:49,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 02:04:49,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 02:04:49,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 02:04:49,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:04:48" (1/3) ... [2023-02-15 02:04:49,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be3cec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:04:49, skipping insertion in model container [2023-02-15 02:04:49,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:04:48" (2/3) ... [2023-02-15 02:04:49,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be3cec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:04:49, skipping insertion in model container [2023-02-15 02:04:49,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:04:49" (3/3) ... [2023-02-15 02:04:49,025 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2023-02-15 02:04:49,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 02:04:49,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-15 02:04:49,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 02:04:49,110 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;@53ea66c4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 02:04:49,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-15 02:04:49,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:04:49,117 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,125 INFO L85 PathProgramCache]: Analyzing trace with hash 889514734, now seen corresponding path program 1 times [2023-02-15 02:04:49,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512624872] [2023-02-15 02:04:49,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512624872] [2023-02-15 02:04:49,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512624872] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:49,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:49,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:04:49,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878930698] [2023-02-15 02:04:49,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 02:04:49,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 02:04:49,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 02:04:49,275 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,285 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2023-02-15 02:04:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 02:04:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 02:04:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,293 INFO L225 Difference]: With dead ends: 51 [2023-02-15 02:04:49,293 INFO L226 Difference]: Without dead ends: 23 [2023-02-15 02:04:49,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 02:04:49,297 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:49,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-15 02:04:49,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-15 02:04:49,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-02-15 02:04:49,325 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 6 [2023-02-15 02:04:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,326 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-02-15 02:04:49,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-02-15 02:04:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:04:49,327 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 02:04:49,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,330 INFO L85 PathProgramCache]: Analyzing trace with hash 889513835, now seen corresponding path program 1 times [2023-02-15 02:04:49,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826601512] [2023-02-15 02:04:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826601512] [2023-02-15 02:04:49,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826601512] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:49,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:49,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:04:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593114392] [2023-02-15 02:04:49,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:04:49,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:04:49,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,393 INFO L87 Difference]: Start difference. First operand 23 states and 25 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) [2023-02-15 02:04:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,433 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2023-02-15 02:04:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:04:49,433 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 [2023-02-15 02:04:49,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,434 INFO L225 Difference]: With dead ends: 42 [2023-02-15 02:04:49,434 INFO L226 Difference]: Without dead ends: 41 [2023-02-15 02:04:49,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,435 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 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 [2023-02-15 02:04:49,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-15 02:04:49,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2023-02-15 02:04:49,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.631578947368421) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2023-02-15 02:04:49,440 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 6 [2023-02-15 02:04:49,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,441 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2023-02-15 02:04:49,441 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) [2023-02-15 02:04:49,441 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-02-15 02:04:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:04:49,441 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 02:04:49,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,442 INFO L85 PathProgramCache]: Analyzing trace with hash 889513869, now seen corresponding path program 1 times [2023-02-15 02:04:49,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651721421] [2023-02-15 02:04:49,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651721421] [2023-02-15 02:04:49,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651721421] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:49,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:49,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:04:49,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242444419] [2023-02-15 02:04:49,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:04:49,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:04:49,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,473 INFO L87 Difference]: Start difference. First operand 27 states and 31 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) [2023-02-15 02:04:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,488 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2023-02-15 02:04:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:04:49,488 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 [2023-02-15 02:04:49,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,489 INFO L225 Difference]: With dead ends: 28 [2023-02-15 02:04:49,489 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 02:04:49,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,490 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 18 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:49,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 02:04:49,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2023-02-15 02:04:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-02-15 02:04:49,494 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 6 [2023-02-15 02:04:49,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,494 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-02-15 02:04:49,495 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) [2023-02-15 02:04:49,495 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-02-15 02:04:49,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 02:04:49,497 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 02:04:49,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1805125194, now seen corresponding path program 1 times [2023-02-15 02:04:49,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82021015] [2023-02-15 02:04:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82021015] [2023-02-15 02:04:49,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82021015] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:49,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:49,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:04:49,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340546216] [2023-02-15 02:04:49,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:04:49,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:04:49,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,533 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,553 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2023-02-15 02:04:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:04:49,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 02:04:49,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,558 INFO L225 Difference]: With dead ends: 44 [2023-02-15 02:04:49,558 INFO L226 Difference]: Without dead ends: 43 [2023-02-15 02:04:49,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,559 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:49,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 35 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-15 02:04:49,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30. [2023-02-15 02:04:49,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-02-15 02:04:49,564 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 7 [2023-02-15 02:04:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,564 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-02-15 02:04:49,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-02-15 02:04:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 02:04:49,565 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 02:04:49,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1805126220, now seen corresponding path program 1 times [2023-02-15 02:04:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811178393] [2023-02-15 02:04:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811178393] [2023-02-15 02:04:49,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811178393] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:49,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:49,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:04:49,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095472899] [2023-02-15 02:04:49,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:04:49,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:04:49,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,605 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,620 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2023-02-15 02:04:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:04:49,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 02:04:49,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,621 INFO L225 Difference]: With dead ends: 39 [2023-02-15 02:04:49,621 INFO L226 Difference]: Without dead ends: 38 [2023-02-15 02:04:49,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,623 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:49,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 39 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-15 02:04:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2023-02-15 02:04:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.5) internal successors, (39), 32 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2023-02-15 02:04:49,628 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 7 [2023-02-15 02:04:49,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,629 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2023-02-15 02:04:49,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-02-15 02:04:49,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 02:04:49,629 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 02:04:49,630 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash 124338035, now seen corresponding path program 1 times [2023-02-15 02:04:49,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477282429] [2023-02-15 02:04:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477282429] [2023-02-15 02:04:49,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477282429] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:49,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:49,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:04:49,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141200917] [2023-02-15 02:04:49,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:04:49,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:04:49,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,664 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,675 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-02-15 02:04:49,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:04:49,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 02:04:49,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,676 INFO L225 Difference]: With dead ends: 33 [2023-02-15 02:04:49,676 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 02:04:49,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,677 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:49,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 19 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 02:04:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-15 02:04:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 31 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) [2023-02-15 02:04:49,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2023-02-15 02:04:49,682 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 8 [2023-02-15 02:04:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,682 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2023-02-15 02:04:49,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-02-15 02:04:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 02:04:49,683 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 02:04:49,683 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash -440488146, now seen corresponding path program 1 times [2023-02-15 02:04:49,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522849004] [2023-02-15 02:04:49,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522849004] [2023-02-15 02:04:49,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522849004] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:49,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:49,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:04:49,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99743438] [2023-02-15 02:04:49,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:04:49,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:04:49,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,716 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,723 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2023-02-15 02:04:49,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:04:49,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 02:04:49,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,724 INFO L225 Difference]: With dead ends: 32 [2023-02-15 02:04:49,724 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 02:04:49,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:04:49,724 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:49,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 02:04:49,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-15 02:04:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-02-15 02:04:49,729 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 9 [2023-02-15 02:04:49,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,729 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-02-15 02:04:49,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-02-15 02:04:49,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 02:04:49,729 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,729 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 02:04:49,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:49,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:49,730 INFO L85 PathProgramCache]: Analyzing trace with hash 944544627, now seen corresponding path program 1 times [2023-02-15 02:04:49,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:49,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993537014] [2023-02-15 02:04:49,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:49,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993537014] [2023-02-15 02:04:49,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993537014] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:49,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305209681] [2023-02-15 02:04:49,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:49,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:49,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:49,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:49,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 02:04:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:49,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:04:49,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:49,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305209681] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:49,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:49,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 02:04:49,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159793135] [2023-02-15 02:04:49,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:49,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:04:49,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:49,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:04:49,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:04:49,891 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:49,949 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2023-02-15 02:04:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:04:49,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 02:04:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:49,952 INFO L225 Difference]: With dead ends: 84 [2023-02-15 02:04:49,952 INFO L226 Difference]: Without dead ends: 83 [2023-02-15 02:04:49,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:04:49,953 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 55 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:49,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 79 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:49,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-02-15 02:04:49,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 43. [2023-02-15 02:04:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.368421052631579) internal successors, (52), 42 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2023-02-15 02:04:49,962 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 11 [2023-02-15 02:04:49,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:49,962 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2023-02-15 02:04:49,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2023-02-15 02:04:49,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 02:04:49,963 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:49,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:49,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 02:04:50,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:50,168 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:50,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1892656240, now seen corresponding path program 1 times [2023-02-15 02:04:50,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:50,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718833642] [2023-02-15 02:04:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:50,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718833642] [2023-02-15 02:04:50,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718833642] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:50,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:50,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:04:50,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751886826] [2023-02-15 02:04:50,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:50,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:04:50,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:50,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:04:50,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:04:50,220 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:50,253 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2023-02-15 02:04:50,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:04:50,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 02:04:50,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:50,256 INFO L225 Difference]: With dead ends: 46 [2023-02-15 02:04:50,256 INFO L226 Difference]: Without dead ends: 44 [2023-02-15 02:04:50,256 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 [2023-02-15 02:04:50,258 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:50,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 18 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-02-15 02:04:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2023-02-15 02:04:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2023-02-15 02:04:50,264 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 11 [2023-02-15 02:04:50,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:50,264 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2023-02-15 02:04:50,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,264 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-02-15 02:04:50,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 02:04:50,274 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:50,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:50,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 02:04:50,275 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:50,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:50,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1457198630, now seen corresponding path program 1 times [2023-02-15 02:04:50,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:50,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843038303] [2023-02-15 02:04:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:50,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843038303] [2023-02-15 02:04:50,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843038303] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:50,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:50,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:04:50,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310649052] [2023-02-15 02:04:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:50,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:04:50,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:50,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:04:50,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:04:50,300 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:50,340 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2023-02-15 02:04:50,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 02:04:50,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 02:04:50,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:50,342 INFO L225 Difference]: With dead ends: 67 [2023-02-15 02:04:50,342 INFO L226 Difference]: Without dead ends: 65 [2023-02-15 02:04:50,343 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 [2023-02-15 02:04:50,345 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 32 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:50,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 43 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-02-15 02:04:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2023-02-15 02:04:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 45 states have (on average 1.288888888888889) internal successors, (58), 47 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2023-02-15 02:04:50,366 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 12 [2023-02-15 02:04:50,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:50,366 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2023-02-15 02:04:50,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-02-15 02:04:50,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 02:04:50,367 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:50,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:50,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-15 02:04:50,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:50,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:50,367 INFO L85 PathProgramCache]: Analyzing trace with hash -210231649, now seen corresponding path program 1 times [2023-02-15 02:04:50,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:50,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705809155] [2023-02-15 02:04:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:50,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:50,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705809155] [2023-02-15 02:04:50,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705809155] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:50,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789111124] [2023-02-15 02:04:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:50,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:50,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:50,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:50,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 02:04:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:50,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:04:50,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:50,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:50,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789111124] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:50,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:50,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 02:04:50,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790087332] [2023-02-15 02:04:50,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:50,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:04:50,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:50,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:04:50,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:04:50,478 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:50,509 INFO L93 Difference]: Finished difference Result 130 states and 157 transitions. [2023-02-15 02:04:50,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:04:50,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 02:04:50,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:50,510 INFO L225 Difference]: With dead ends: 130 [2023-02-15 02:04:50,511 INFO L226 Difference]: Without dead ends: 129 [2023-02-15 02:04:50,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:04:50,512 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 32 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:50,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 70 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:50,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-15 02:04:50,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 102. [2023-02-15 02:04:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.2828282828282829) internal successors, (127), 101 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2023-02-15 02:04:50,535 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 14 [2023-02-15 02:04:50,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:50,535 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2023-02-15 02:04:50,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,535 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2023-02-15 02:04:50,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 02:04:50,536 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:50,537 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:50,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 02:04:50,741 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,SelfDestructingSolverStorable10 [2023-02-15 02:04:50,742 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:50,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:50,742 INFO L85 PathProgramCache]: Analyzing trace with hash 888940113, now seen corresponding path program 1 times [2023-02-15 02:04:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:50,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285975798] [2023-02-15 02:04:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:04:50,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:50,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285975798] [2023-02-15 02:04:50,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285975798] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:04:50,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:04:50,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:04:50,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566173863] [2023-02-15 02:04:50,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:04:50,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:04:50,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:50,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:04:50,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:04:50,768 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:50,786 INFO L93 Difference]: Finished difference Result 102 states and 127 transitions. [2023-02-15 02:04:50,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:04:50,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 02:04:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:50,787 INFO L225 Difference]: With dead ends: 102 [2023-02-15 02:04:50,787 INFO L226 Difference]: Without dead ends: 101 [2023-02-15 02:04:50,787 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 [2023-02-15 02:04:50,787 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:50,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:50,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-02-15 02:04:50,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2023-02-15 02:04:50,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 92 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2023-02-15 02:04:50,793 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 16 [2023-02-15 02:04:50,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:50,793 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2023-02-15 02:04:50,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,794 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2023-02-15 02:04:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 02:04:50,794 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:50,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:50,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-15 02:04:50,794 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)] === [2023-02-15 02:04:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash -428731052, now seen corresponding path program 1 times [2023-02-15 02:04:50,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:50,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902465781] [2023-02-15 02:04:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:50,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:50,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902465781] [2023-02-15 02:04:50,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902465781] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:50,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374155055] [2023-02-15 02:04:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:50,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:50,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:50,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:50,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 02:04:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:50,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:04:50,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:50,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374155055] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:50,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:50,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2023-02-15 02:04:50,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068186716] [2023-02-15 02:04:50,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:50,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:04:50,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:50,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:04:50,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:04:50,896 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:50,927 INFO L93 Difference]: Finished difference Result 148 states and 180 transitions. [2023-02-15 02:04:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:04:50,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 02:04:50,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:50,927 INFO L225 Difference]: With dead ends: 148 [2023-02-15 02:04:50,927 INFO L226 Difference]: Without dead ends: 104 [2023-02-15 02:04:50,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-02-15 02:04:50,928 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:50,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 57 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:50,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-02-15 02:04:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 99. [2023-02-15 02:04:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 98 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2023-02-15 02:04:50,934 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 18 [2023-02-15 02:04:50,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:50,934 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2023-02-15 02:04:50,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:50,934 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2023-02-15 02:04:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 02:04:50,934 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:50,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:50,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 02:04:51,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:51,140 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)] === [2023-02-15 02:04:51,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:51,140 INFO L85 PathProgramCache]: Analyzing trace with hash -292270522, now seen corresponding path program 2 times [2023-02-15 02:04:51,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:51,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165586534] [2023-02-15 02:04:51,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:51,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:04:51,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:51,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165586534] [2023-02-15 02:04:51,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165586534] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:51,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428343578] [2023-02-15 02:04:51,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:04:51,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:51,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:51,177 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:51,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 02:04:51,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 02:04:51,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:04:51,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:04:51,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:04:51,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:04:51,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428343578] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:51,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:51,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-02-15 02:04:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594360461] [2023-02-15 02:04:51,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:51,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:04:51,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:51,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:04:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:04:51,243 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:51,261 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2023-02-15 02:04:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:04:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 02:04:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:51,263 INFO L225 Difference]: With dead ends: 100 [2023-02-15 02:04:51,263 INFO L226 Difference]: Without dead ends: 81 [2023-02-15 02:04:51,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:04:51,263 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:51,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:51,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-02-15 02:04:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-02-15 02:04:51,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 79 states have (on average 1.240506329113924) internal successors, (98), 80 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2023-02-15 02:04:51,271 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 18 [2023-02-15 02:04:51,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:51,271 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2023-02-15 02:04:51,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2023-02-15 02:04:51,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 02:04:51,272 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:51,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:51,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 02:04:51,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:51,476 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:51,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:51,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1701396303, now seen corresponding path program 1 times [2023-02-15 02:04:51,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:51,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295844346] [2023-02-15 02:04:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:51,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:51,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:51,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295844346] [2023-02-15 02:04:51,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295844346] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:51,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704490474] [2023-02-15 02:04:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:51,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:51,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:51,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:51,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 02:04:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:51,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:04:51,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:51,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:04:51,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704490474] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:51,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:51,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 02:04:51,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994312859] [2023-02-15 02:04:51,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:51,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 02:04:51,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:51,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 02:04:51,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-02-15 02:04:51,620 INFO L87 Difference]: Start difference. First operand 81 states and 98 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:51,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:51,864 INFO L93 Difference]: Finished difference Result 320 states and 382 transitions. [2023-02-15 02:04:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 02:04:51,865 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 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 [2023-02-15 02:04:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:51,866 INFO L225 Difference]: With dead ends: 320 [2023-02-15 02:04:51,866 INFO L226 Difference]: Without dead ends: 319 [2023-02-15 02:04:51,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=362, Unknown=0, NotChecked=0, Total=552 [2023-02-15 02:04:51,866 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 283 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:51,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 49 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:04:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-02-15 02:04:51,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 157. [2023-02-15 02:04:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.238709677419355) internal successors, (192), 156 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2023-02-15 02:04:51,875 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 19 [2023-02-15 02:04:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:51,875 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2023-02-15 02:04:51,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2023-02-15 02:04:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 02:04:51,876 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:51,876 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-15 02:04:51,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 02:04:52,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 02:04:52,081 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:04:52,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:52,081 INFO L85 PathProgramCache]: Analyzing trace with hash -813986932, now seen corresponding path program 2 times [2023-02-15 02:04:52,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:52,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137724123] [2023-02-15 02:04:52,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:52,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-02-15 02:04:52,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:52,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137724123] [2023-02-15 02:04:52,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137724123] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:52,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788632234] [2023-02-15 02:04:52,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:04:52,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:52,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:52,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:52,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 02:04:52,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 02:04:52,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:04:52,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:04:52,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-02-15 02:04:52,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-02-15 02:04:52,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788632234] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:52,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:52,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-02-15 02:04:52,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522360427] [2023-02-15 02:04:52,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:52,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:04:52,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:52,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:04:52,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:04:52,198 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:52,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:52,214 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2023-02-15 02:04:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:04:52,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-02-15 02:04:52,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:52,215 INFO L225 Difference]: With dead ends: 157 [2023-02-15 02:04:52,215 INFO L226 Difference]: Without dead ends: 156 [2023-02-15 02:04:52,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:04:52,216 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:52,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:04:52,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-02-15 02:04:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 52. [2023-02-15 02:04:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 51 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2023-02-15 02:04:52,221 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 35 [2023-02-15 02:04:52,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:52,222 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2023-02-15 02:04:52,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:52,222 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-02-15 02:04:52,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 02:04:52,225 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:52,225 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 02:04:52,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 02:04:52,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 02:04:52,430 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)] === [2023-02-15 02:04:52,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:52,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1838217185, now seen corresponding path program 1 times [2023-02-15 02:04:52,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:52,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75764891] [2023-02-15 02:04:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:52,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 02:04:52,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:52,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75764891] [2023-02-15 02:04:52,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75764891] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:52,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710358110] [2023-02-15 02:04:52,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:52,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:52,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:52,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:52,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 02:04:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:52,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 02:04:52,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:52,571 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 02:04:52,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 02:04:52,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710358110] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:52,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:52,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-15 02:04:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8985265] [2023-02-15 02:04:52,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:52,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 02:04:52,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:52,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 02:04:52,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-02-15 02:04:52,655 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:53,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:53,105 INFO L93 Difference]: Finished difference Result 344 states and 401 transitions. [2023-02-15 02:04:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 02:04:53,106 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 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 [2023-02-15 02:04:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:53,107 INFO L225 Difference]: With dead ends: 344 [2023-02-15 02:04:53,107 INFO L226 Difference]: Without dead ends: 343 [2023-02-15 02:04:53,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=871, Invalid=1679, Unknown=0, NotChecked=0, Total=2550 [2023-02-15 02:04:53,108 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 638 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:53,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 99 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:04:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-02-15 02:04:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 101. [2023-02-15 02:04:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.17) internal successors, (117), 100 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) [2023-02-15 02:04:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2023-02-15 02:04:53,119 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 35 [2023-02-15 02:04:53,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:53,119 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2023-02-15 02:04:53,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:53,119 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2023-02-15 02:04:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-15 02:04:53,119 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:53,119 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 02:04:53,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 02:04:53,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:53,324 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)] === [2023-02-15 02:04:53,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:53,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1212228847, now seen corresponding path program 2 times [2023-02-15 02:04:53,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:53,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736893962] [2023-02-15 02:04:53,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:53,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 02:04:53,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:53,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736893962] [2023-02-15 02:04:53,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736893962] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:53,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344948960] [2023-02-15 02:04:53,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:04:53,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:53,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:53,492 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:53,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 02:04:53,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 02:04:53,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:04:53,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 02:04:53,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 02:04:53,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 02:04:53,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344948960] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:53,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:53,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-02-15 02:04:53,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110537497] [2023-02-15 02:04:53,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:53,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 02:04:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:53,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 02:04:53,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=433, Unknown=0, NotChecked=0, Total=650 [2023-02-15 02:04:53,764 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand has 26 states, 25 states have (on average 4.72) internal successors, (118), 26 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:55,024 INFO L93 Difference]: Finished difference Result 812 states and 940 transitions. [2023-02-15 02:04:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-02-15 02:04:55,025 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.72) internal successors, (118), 26 states have internal predecessors, (118), 0 states have call successors, (0), 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 [2023-02-15 02:04:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:55,028 INFO L225 Difference]: With dead ends: 812 [2023-02-15 02:04:55,028 INFO L226 Difference]: Without dead ends: 811 [2023-02-15 02:04:55,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4083 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=3646, Invalid=7484, Unknown=0, NotChecked=0, Total=11130 [2023-02-15 02:04:55,032 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 968 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:55,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 203 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 02:04:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2023-02-15 02:04:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 151. [2023-02-15 02:04:55,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.18) internal successors, (177), 150 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:55,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 177 transitions. [2023-02-15 02:04:55,048 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 177 transitions. Word has length 60 [2023-02-15 02:04:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:55,048 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 177 transitions. [2023-02-15 02:04:55,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.72) internal successors, (118), 26 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 177 transitions. [2023-02-15 02:04:55,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-15 02:04:55,049 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:04:55,049 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2023-02-15 02:04:55,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 02:04:55,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-15 02:04:55,256 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)] === [2023-02-15 02:04:55,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:04:55,256 INFO L85 PathProgramCache]: Analyzing trace with hash 626428527, now seen corresponding path program 3 times [2023-02-15 02:04:55,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:04:55,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095543106] [2023-02-15 02:04:55,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:04:55,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:04:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:04:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-02-15 02:04:55,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:04:55,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095543106] [2023-02-15 02:04:55,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095543106] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:04:55,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181363879] [2023-02-15 02:04:55,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 02:04:55,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:55,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:04:55,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:04:55,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 02:04:55,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-02-15 02:04:55,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:04:55,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:04:55,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:04:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-02-15 02:04:55,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:04:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-02-15 02:04:55,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181363879] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:04:55,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:04:55,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-02-15 02:04:55,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297332354] [2023-02-15 02:04:55,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:04:55,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 02:04:55,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:04:55,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 02:04:55,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-02-15 02:04:55,490 INFO L87 Difference]: Start difference. First operand 151 states and 177 transitions. Second operand has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:55,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:04:55,789 INFO L93 Difference]: Finished difference Result 774 states and 909 transitions. [2023-02-15 02:04:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 02:04:55,790 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 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 [2023-02-15 02:04:55,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:04:55,790 INFO L225 Difference]: With dead ends: 774 [2023-02-15 02:04:55,790 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 02:04:55,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 120 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=320, Invalid=672, Unknown=0, NotChecked=0, Total=992 [2023-02-15 02:04:55,792 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 146 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:04:55,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 74 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:04:55,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 02:04:55,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 02:04:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 02:04:55,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2023-02-15 02:04:55,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:04:55,793 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:04:55,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:04:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 02:04:55,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 02:04:55,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-02-15 02:04:55,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-02-15 02:04:55,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-02-15 02:04:55,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-02-15 02:04:55,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-02-15 02:04:55,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-02-15 02:04:55,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-02-15 02:04:55,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-02-15 02:04:55,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 02:04:56,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:04:56,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 02:04:58,482 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-02-15 02:04:58,482 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 34) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_~N~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~N~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~m~0#1| 2147483647))) (or (and .cse0 (<= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~j~0#1|) (or (and .cse1 .cse2 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse1 .cse2)) .cse3 .cse4) (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3 .cse4))) [2023-02-15 02:04:58,482 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 13 37) the Hoare annotation is: true [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L895 garLoopResultBuilder]: At program point L28-4(lines 28 30) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~N~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point L28-5(lines 28 30) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-02-15 02:04:58,483 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 32) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483646)) (.cse2 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= 0 |ULTIMATE.start_main_~N~0#1|)) (.cse5 (<= |ULTIMATE.start_main_~N~0#1| 2147483647)) (.cse6 (<= |ULTIMATE.start_main_~m~0#1| 2147483647))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse4 .cse5 .cse6))) [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point L25-3(lines 25 32) no Hoare annotation was computed. [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 35) no Hoare annotation was computed. [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 35) no Hoare annotation was computed. [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2023-02-15 02:04:58,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-02-15 02:04:58,486 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:04:58,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 02:04:58,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:04:58 BoogieIcfgContainer [2023-02-15 02:04:58,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 02:04:58,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:04:58,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:04:58,501 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:04:58,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:04:49" (3/4) ... [2023-02-15 02:04:58,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 02:04:58,512 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 02:04:58,512 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-15 02:04:58,512 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 02:04:58,535 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 02:04:58,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:04:58,536 INFO L158 Benchmark]: Toolchain (without parser) took 9974.49ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 85.5MB in the beginning and 54.9MB in the end (delta: 30.5MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-02-15 02:04:58,536 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:04:58,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.46ms. Allocated memory is still 130.0MB. Free memory was 85.4MB in the beginning and 75.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 02:04:58,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.09ms. Allocated memory is still 130.0MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:04:58,537 INFO L158 Benchmark]: Boogie Preprocessor took 26.56ms. Allocated memory is still 130.0MB. Free memory was 74.5MB in the beginning and 73.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:04:58,537 INFO L158 Benchmark]: RCFGBuilder took 230.03ms. Allocated memory is still 130.0MB. Free memory was 73.3MB in the beginning and 63.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 02:04:58,540 INFO L158 Benchmark]: TraceAbstraction took 9498.95ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 58.1MB in the end (delta: 4.3MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2023-02-15 02:04:58,541 INFO L158 Benchmark]: Witness Printer took 34.88ms. Allocated memory is still 163.6MB. Free memory was 58.1MB in the beginning and 54.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 02:04:58,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.46ms. Allocated memory is still 130.0MB. Free memory was 85.4MB in the beginning and 75.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.09ms. Allocated memory is still 130.0MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.56ms. Allocated memory is still 130.0MB. Free memory was 74.5MB in the beginning and 73.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.03ms. Allocated memory is still 130.0MB. Free memory was 73.3MB in the beginning and 63.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9498.95ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 58.1MB in the end (delta: 4.3MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Witness Printer took 34.88ms. Allocated memory is still 163.6MB. Free memory was 58.1MB in the beginning and 54.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 19, TraceHistogramMax: 9, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2311 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2311 mSDsluCounter, 964 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 653 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 937 IncrementalHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 311 mSDtfsCounter, 937 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 761 GetRequests, 508 SyntacticMatches, 13 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5150 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=15, InterpolantAutomatonStates: 233, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 1305 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 200 NumberOfFragments, 134 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 37087185 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 632 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 867 ConstructedInterpolants, 0 QuantifiedInterpolants, 2409 SizeOfPredicates, 23 NumberOfNonLiveVariables, 440 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 380/1214 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((n <= 2147483647 && i <= 2147483646) && 0 <= j) && 0 <= i) && 0 <= N) && N <= 2147483647) && m <= 2147483647) && j <= 0) || ((((((((0 <= k && n <= 2147483647) && i <= 2147483646) && 0 <= j) && 0 <= i) && k <= 2147483646) && 0 <= N) && N <= 2147483647) && m <= 2147483647) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((n <= 2147483647 && m <= j) && (((0 <= i && 0 <= N) && j <= 0) || ((0 <= k && 0 <= i) && 0 <= N))) && N <= 2147483647) && m <= 2147483647) || (((((n <= 2147483647 && i <= 0) && 0 <= i) && 0 <= N) && N <= 2147483647) && m <= 2147483647) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((0 <= k && n <= 2147483647) && 0 <= j) && 0 <= i) && k <= 2147483646) && 0 <= N) && N <= 2147483647) && m <= 2147483647 RESULT: Ultimate proved your program to be correct! [2023-02-15 02:04:58,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE