./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/ex3a.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-restricted-15/ex3a.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 514a2cd80a78774a6104ad373dace683a92f94b333b9f08b1b53c58f7478bd33 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:17:03,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:17:03,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:17:03,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:17:03,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:17:03,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:17:03,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:17:03,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:17:03,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:17:03,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:17:03,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:17:03,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:17:03,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:17:03,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:17:03,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:17:03,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:17:03,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:17:03,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:17:03,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:17:03,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:17:03,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:17:03,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:17:03,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:17:03,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:17:03,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:17:03,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:17:03,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:17:03,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:17:03,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:17:03,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:17:03,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:17:03,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:17:03,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:17:03,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:17:03,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:17:03,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:17:03,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:17:03,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:17:03,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:17:03,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:17:03,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:17:03,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 02:17:03,527 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:17:03,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:17:03,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:17:03,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:17:03,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 02:17:03,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 02:17:03,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:17:03,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:17:03,535 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:17:03,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:17:03,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:17:03,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 02:17:03,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:17:03,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:17:03,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 02:17:03,537 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 02:17:03,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 02:17:03,538 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 02:17:03,538 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 514a2cd80a78774a6104ad373dace683a92f94b333b9f08b1b53c58f7478bd33 [2023-02-15 02:17:03,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:17:03,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:17:03,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:17:03,755 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:17:03,756 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:17:03,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/ex3a.c [2023-02-15 02:17:04,834 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:17:04,964 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:17:04,965 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/ex3a.c [2023-02-15 02:17:04,969 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baaa503a2/d6abc78ef269408c9cbd90e742ccc589/FLAG248075bac [2023-02-15 02:17:04,984 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baaa503a2/d6abc78ef269408c9cbd90e742ccc589 [2023-02-15 02:17:04,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:17:04,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:17:04,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:17:04,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:17:04,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:17:04,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:17:04" (1/1) ... [2023-02-15 02:17:04,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56baf88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:04, skipping insertion in model container [2023-02-15 02:17:04,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:17:04" (1/1) ... [2023-02-15 02:17:04,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:17:05,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:17:05,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:17:05,094 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:17:05,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:17:05,110 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:17:05,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05 WrapperNode [2023-02-15 02:17:05,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:17:05,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:17:05,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:17:05,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:17:05,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,131 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-15 02:17:05,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:17:05,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:17:05,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:17:05,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:17:05,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:17:05,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:17:05,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:17:05,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:17:05,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (1/1) ... [2023-02-15 02:17:05,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:17:05,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:17:05,175 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 02:17:05,180 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 02:17:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:17:05,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:17:05,258 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:17:05,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:17:05,311 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:17:05,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:17:05,316 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 02:17:05,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:05 BoogieIcfgContainer [2023-02-15 02:17:05,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:17:05,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 02:17:05,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 02:17:05,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 02:17:05,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:17:04" (1/3) ... [2023-02-15 02:17:05,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e2d3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:17:05, skipping insertion in model container [2023-02-15 02:17:05,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:05" (2/3) ... [2023-02-15 02:17:05,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e2d3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:17:05, skipping insertion in model container [2023-02-15 02:17:05,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:05" (3/3) ... [2023-02-15 02:17:05,322 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3a.c [2023-02-15 02:17:05,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 02:17:05,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 02:17:05,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 02:17:05,374 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;@33d405e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 02:17:05,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 02:17:05,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states 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 02:17:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 02:17:05,380 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:17:05,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 02:17:05,380 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:17:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:17:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-15 02:17:05,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:17:05,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693761992] [2023-02-15 02:17:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:05,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:17:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:17:05,465 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 02:17:05,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:17:05,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693761992] [2023-02-15 02:17:05,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693761992] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:17:05,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:17:05,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 02:17:05,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219142871] [2023-02-15 02:17:05,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:17:05,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 02:17:05,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:17:05,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 02:17:05,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 02:17:05,489 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 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, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:05,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:17:05,497 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-02-15 02:17:05,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 02:17:05,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-02-15 02:17:05,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:17:05,503 INFO L225 Difference]: With dead ends: 19 [2023-02-15 02:17:05,503 INFO L226 Difference]: Without dead ends: 10 [2023-02-15 02:17:05,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 02:17:05,506 INFO L413 NwaCegarLoop]: 14 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, 14 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 02:17:05,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:17:05,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-15 02:17:05,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-15 02:17:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-15 02:17:05,547 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2023-02-15 02:17:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:17:05,547 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-15 02:17:05,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:05,553 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-15 02:17:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 02:17:05,554 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:17:05,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 02:17:05,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 02:17:05,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:17:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:17:05,568 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-15 02:17:05,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:17:05,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762993788] [2023-02-15 02:17:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:05,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:17:05,575 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 02:17:05,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194878461] [2023-02-15 02:17:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:05,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:17:05,589 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 02:17:05,614 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 02:17:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:17:05,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:17:05,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:17:05,676 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 02:17:05,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:17:05,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:17:05,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762993788] [2023-02-15 02:17:05,677 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 02:17:05,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194878461] [2023-02-15 02:17:05,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194878461] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:17:05,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:17:05,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:17:05,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982839766] [2023-02-15 02:17:05,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:17:05,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:17:05,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:17:05,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:17:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:17:05,679 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:05,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:17:05,685 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-02-15 02:17:05,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:17:05,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 02:17:05,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:17:05,685 INFO L225 Difference]: With dead ends: 10 [2023-02-15 02:17:05,685 INFO L226 Difference]: Without dead ends: 9 [2023-02-15 02:17:05,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 02:17:05,686 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:17:05,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:17:05,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-15 02:17:05,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-15 02:17:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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 02:17:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-02-15 02:17:05,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-02-15 02:17:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:17:05,688 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-02-15 02:17:05,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-02-15 02:17:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:17:05,689 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:17:05,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:17:05,703 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 02:17:05,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:05,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:17:05,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:17:05,905 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2023-02-15 02:17:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:17:05,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603084770] [2023-02-15 02:17:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:05,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:17:05,913 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 02:17:05,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315006722] [2023-02-15 02:17:05,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:05,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:05,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:17:05,933 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 02:17:05,937 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 02:17:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:17:05,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:17:05,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:17:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:17:05,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:17:05,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:17:05,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603084770] [2023-02-15 02:17:05,987 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 02:17:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315006722] [2023-02-15 02:17:05,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315006722] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:17:05,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:17:05,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:17:05,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90407252] [2023-02-15 02:17:05,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:17:05,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:17:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:17:05,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:17:05,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:17:05,989 INFO L87 Difference]: Start difference. First operand 9 states and 9 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 02:17:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:17:05,993 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2023-02-15 02:17:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:17:05,993 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 02:17:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:17:05,994 INFO L225 Difference]: With dead ends: 9 [2023-02-15 02:17:05,994 INFO L226 Difference]: Without dead ends: 8 [2023-02-15 02:17:05,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 02:17:05,995 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:17:05,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:17:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-02-15 02:17:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-15 02:17:05,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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 02:17:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-02-15 02:17:05,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2023-02-15 02:17:05,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:17:05,997 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-02-15 02:17:05,997 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 02:17:05,998 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-02-15 02:17:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 02:17:05,998 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:17:05,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:17:06,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 02:17:06,202 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,SelfDestructingSolverStorable2 [2023-02-15 02:17:06,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:17:06,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:17:06,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-02-15 02:17:06,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:17:06,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092453248] [2023-02-15 02:17:06,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:06,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:17:06,207 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 02:17:06,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145325242] [2023-02-15 02:17:06,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:06,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:06,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:17:06,233 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 02:17:06,263 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 02:17:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:17:06,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:17:06,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:17:06,306 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 02:17:06,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:17:06,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:17:06,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092453248] [2023-02-15 02:17:06,307 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 02:17:06,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145325242] [2023-02-15 02:17:06,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145325242] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:17:06,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:17:06,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:17:06,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201554609] [2023-02-15 02:17:06,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:17:06,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:17:06,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:17:06,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:17:06,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:17:06,312 INFO L87 Difference]: Start difference. First operand 8 states and 8 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 02:17:06,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:17:06,322 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-02-15 02:17:06,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:17:06,322 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 02:17:06,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:17:06,323 INFO L225 Difference]: With dead ends: 14 [2023-02-15 02:17:06,324 INFO L226 Difference]: Without dead ends: 13 [2023-02-15 02:17:06,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 02:17:06,325 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 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 02:17:06,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:17:06,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-15 02:17:06,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-15 02:17:06,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:06,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-02-15 02:17:06,333 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-02-15 02:17:06,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:17:06,333 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-02-15 02:17:06,333 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 02:17:06,333 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-02-15 02:17:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 02:17:06,334 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:17:06,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2023-02-15 02:17:06,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 02:17:06,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:06,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:17:06,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:17:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash -646531742, now seen corresponding path program 1 times [2023-02-15 02:17:06,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:17:06,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291561708] [2023-02-15 02:17:06,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:06,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:17:06,564 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 02:17:06,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987968613] [2023-02-15 02:17:06,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:06,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:06,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:17:06,580 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 02:17:06,592 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 02:17:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:17:06,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:17:06,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:17:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:17:06,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:17:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:17:06,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:17:06,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291561708] [2023-02-15 02:17:06,709 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 02:17:06,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987968613] [2023-02-15 02:17:06,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987968613] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:17:06,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 02:17:06,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-02-15 02:17:06,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955946988] [2023-02-15 02:17:06,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 02:17:06,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:17:06,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:17:06,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:17:06,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:17:06,713 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:06,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:17:06,729 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-02-15 02:17:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:17:06,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 02:17:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:17:06,730 INFO L225 Difference]: With dead ends: 29 [2023-02-15 02:17:06,730 INFO L226 Difference]: Without dead ends: 28 [2023-02-15 02:17:06,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 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 02:17:06,731 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:17:06,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:17:06,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-15 02:17:06,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-02-15 02:17:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2023-02-15 02:17:06,736 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 12 [2023-02-15 02:17:06,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:17:06,736 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2023-02-15 02:17:06,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2023-02-15 02:17:06,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 02:17:06,737 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:17:06,737 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1] [2023-02-15 02:17:06,742 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 02:17:06,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:06,942 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:17:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:17:06,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1214197931, now seen corresponding path program 2 times [2023-02-15 02:17:06,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:17:06,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813207722] [2023-02-15 02:17:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:06,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:17:06,951 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 02:17:06,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857014762] [2023-02-15 02:17:06,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:17:06,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:17:06,955 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 02:17:06,963 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 02:17:07,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 02:17:07,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:17:07,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:17:07,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:17:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:17:07,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:17:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:17:07,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:17:07,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813207722] [2023-02-15 02:17:07,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 02:17:07,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857014762] [2023-02-15 02:17:07,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857014762] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:17:07,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 02:17:07,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-02-15 02:17:07,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316798053] [2023-02-15 02:17:07,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 02:17:07,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 02:17:07,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:17:07,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 02:17:07,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:17:07,218 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 02:17:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:17:07,257 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2023-02-15 02:17:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 02:17:07,258 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 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 27 [2023-02-15 02:17:07,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:17:07,259 INFO L225 Difference]: With dead ends: 59 [2023-02-15 02:17:07,259 INFO L226 Difference]: Without dead ends: 58 [2023-02-15 02:17:07,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:17:07,260 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:17:07,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:17:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-02-15 02:17:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-02-15 02:17:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 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 02:17:07,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2023-02-15 02:17:07,269 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 27 [2023-02-15 02:17:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:17:07,269 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2023-02-15 02:17:07,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 02:17:07,269 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2023-02-15 02:17:07,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-15 02:17:07,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:17:07,271 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1] [2023-02-15 02:17:07,276 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 02:17:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:07,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:17:07,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:17:07,477 INFO L85 PathProgramCache]: Analyzing trace with hash -869666869, now seen corresponding path program 3 times [2023-02-15 02:17:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:17:07,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787677742] [2023-02-15 02:17:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:17:07,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:17:07,490 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 02:17:07,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500396439] [2023-02-15 02:17:07,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 02:17:07,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:07,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:17:07,492 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 02:17:07,494 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 02:17:07,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-15 02:17:07,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:17:07,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:17:07,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:17:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-02-15 02:17:08,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:17:08,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:17:08,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787677742] [2023-02-15 02:17:08,475 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 02:17:08,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500396439] [2023-02-15 02:17:08,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500396439] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:17:08,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:17:08,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 02:17:08,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955399147] [2023-02-15 02:17:08,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:17:08,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:17:08,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:17:08,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:17:08,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=14, Unknown=1, NotChecked=0, Total=30 [2023-02-15 02:17:08,477 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:08,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:17:08,546 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2023-02-15 02:17:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:17:08,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-02-15 02:17:08,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:17:08,547 INFO L225 Difference]: With dead ends: 58 [2023-02-15 02:17:08,547 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 02:17:08,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=14, Unknown=1, NotChecked=0, Total=30 [2023-02-15 02:17:08,548 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:17:08,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:17:08,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 02:17:08,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 02:17:08,549 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 02:17:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 02:17:08,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2023-02-15 02:17:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:17:08,550 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:17:08,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:17:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 02:17:08,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 02:17:08,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-15 02:17:08,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-15 02:17:08,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-15 02:17:08,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-15 02:17:08,564 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 02:17:08,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:17:08,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 02:17:08,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2023-02-15 02:17:08,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 14) the Hoare annotation is: true [2023-02-15 02:17:08,879 INFO L895 garLoopResultBuilder]: At program point L9-2(lines 9 12) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse0 (exists ((|v_ULTIMATE.start_main_~x~0#1_22| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_22| |v_ULTIMATE.start_main_~x~0#1_22|) |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~x~0#1_21| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_20| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_20| |v_ULTIMATE.start_main_~x~0#1_20|) |v_ULTIMATE.start_main_~x~0#1_21|) (< 1 |v_ULTIMATE.start_main_~x~0#1_20|))) (<= (* |v_ULTIMATE.start_main_~x~0#1_21| |v_ULTIMATE.start_main_~x~0#1_21|) |v_ULTIMATE.start_main_~x~0#1_22|))))) (<= |ULTIMATE.start_main_~c~0#1| 3)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_20| Int)) (and (< 1 |v_ULTIMATE.start_main_~x~0#1_20|) (<= (* |v_ULTIMATE.start_main_~x~0#1_20| |v_ULTIMATE.start_main_~x~0#1_20|) |ULTIMATE.start_main_~x~0#1|))) (<= |ULTIMATE.start_main_~c~0#1| 1) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2) (exists ((|v_ULTIMATE.start_main_~x~0#1_21| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_20| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_20| |v_ULTIMATE.start_main_~x~0#1_20|) |v_ULTIMATE.start_main_~x~0#1_21|) (< 1 |v_ULTIMATE.start_main_~x~0#1_20|))) (<= (* |v_ULTIMATE.start_main_~x~0#1_21| |v_ULTIMATE.start_main_~x~0#1_21|) |ULTIMATE.start_main_~x~0#1|)))) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 0)))) [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point L9-3(lines 9 12) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-02-15 02:17:08,879 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2023-02-15 02:17:08,882 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-02-15 02:17:08,888 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 02:17:08,896 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,896 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,897 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,898 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,905 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,905 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:17:08 BoogieIcfgContainer [2023-02-15 02:17:08,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 02:17:08,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:17:08,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:17:08,908 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:17:08,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:05" (3/4) ... [2023-02-15 02:17:08,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 02:17:08,919 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 02:17:08,919 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-15 02:17:08,919 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 02:17:08,940 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 <= c && (\exists v_ULTIMATE.start_main_~x~0#1_22 : int :: v_ULTIMATE.start_main_~x~0#1_22 * v_ULTIMATE.start_main_~x~0#1_22 <= x && (\exists v_ULTIMATE.start_main_~x~0#1_21 : int :: (\exists v_ULTIMATE.start_main_~x~0#1_20 : int :: v_ULTIMATE.start_main_~x~0#1_20 * v_ULTIMATE.start_main_~x~0#1_20 <= v_ULTIMATE.start_main_~x~0#1_21 && 1 < v_ULTIMATE.start_main_~x~0#1_20) && v_ULTIMATE.start_main_~x~0#1_21 * v_ULTIMATE.start_main_~x~0#1_21 <= v_ULTIMATE.start_main_~x~0#1_22))) && c <= 3) || (((\exists v_ULTIMATE.start_main_~x~0#1_20 : int :: 1 < v_ULTIMATE.start_main_~x~0#1_20 && v_ULTIMATE.start_main_~x~0#1_20 * v_ULTIMATE.start_main_~x~0#1_20 <= x) && c <= 1) && 0 <= c)) || ((0 <= c && c <= 2) && (\exists v_ULTIMATE.start_main_~x~0#1_21 : int :: (\exists v_ULTIMATE.start_main_~x~0#1_20 : int :: v_ULTIMATE.start_main_~x~0#1_20 * v_ULTIMATE.start_main_~x~0#1_20 <= v_ULTIMATE.start_main_~x~0#1_21 && 1 < v_ULTIMATE.start_main_~x~0#1_20) && v_ULTIMATE.start_main_~x~0#1_21 * v_ULTIMATE.start_main_~x~0#1_21 <= x))) || (0 <= c && c <= 0) [2023-02-15 02:17:08,943 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 02:17:08,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:17:08,943 INFO L158 Benchmark]: Toolchain (without parser) took 3956.23ms. Allocated memory is still 146.8MB. Free memory was 101.3MB in the beginning and 83.1MB in the end (delta: 18.2MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-02-15 02:17:08,943 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:17:08,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 122.83ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 92.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:17:08,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.68ms. Allocated memory is still 146.8MB. Free memory was 92.1MB in the beginning and 90.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:17:08,944 INFO L158 Benchmark]: Boogie Preprocessor took 16.20ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 89.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:17:08,944 INFO L158 Benchmark]: RCFGBuilder took 167.79ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 79.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:17:08,944 INFO L158 Benchmark]: TraceAbstraction took 3589.62ms. Allocated memory is still 146.8MB. Free memory was 79.6MB in the beginning and 85.2MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:17:08,944 INFO L158 Benchmark]: Witness Printer took 34.73ms. Allocated memory is still 146.8MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:17:08,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 122.83ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 92.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.68ms. Allocated memory is still 146.8MB. Free memory was 92.1MB in the beginning and 90.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.20ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 89.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 167.79ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 79.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3589.62ms. Allocated memory is still 146.8MB. Free memory was 79.6MB in the beginning and 85.2MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.73ms. Allocated memory is still 146.8MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] * 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: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 53 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=6, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 81 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 118 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 148 ConstructedInterpolants, 13 QuantifiedInterpolants, 516 SizeOfPredicates, 1 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 275/385 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 4 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant [2023-02-15 02:17:08,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,959 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,959 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,960 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,960 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,960 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,960 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,961 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,961 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,961 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,961 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,961 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,961 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,962 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_22,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_20,QUANTIFIED] [2023-02-15 02:17:08,963 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] [2023-02-15 02:17:08,964 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0#1_21,QUANTIFIED] Derived loop invariant: ((((0 <= c && (\exists v_ULTIMATE.start_main_~x~0#1_22 : int :: v_ULTIMATE.start_main_~x~0#1_22 * v_ULTIMATE.start_main_~x~0#1_22 <= x && (\exists v_ULTIMATE.start_main_~x~0#1_21 : int :: (\exists v_ULTIMATE.start_main_~x~0#1_20 : int :: v_ULTIMATE.start_main_~x~0#1_20 * v_ULTIMATE.start_main_~x~0#1_20 <= v_ULTIMATE.start_main_~x~0#1_21 && 1 < v_ULTIMATE.start_main_~x~0#1_20) && v_ULTIMATE.start_main_~x~0#1_21 * v_ULTIMATE.start_main_~x~0#1_21 <= v_ULTIMATE.start_main_~x~0#1_22))) && c <= 3) || (((\exists v_ULTIMATE.start_main_~x~0#1_20 : int :: 1 < v_ULTIMATE.start_main_~x~0#1_20 && v_ULTIMATE.start_main_~x~0#1_20 * v_ULTIMATE.start_main_~x~0#1_20 <= x) && c <= 1) && 0 <= c)) || ((0 <= c && c <= 2) && (\exists v_ULTIMATE.start_main_~x~0#1_21 : int :: (\exists v_ULTIMATE.start_main_~x~0#1_20 : int :: v_ULTIMATE.start_main_~x~0#1_20 * v_ULTIMATE.start_main_~x~0#1_20 <= v_ULTIMATE.start_main_~x~0#1_21 && 1 < v_ULTIMATE.start_main_~x~0#1_20) && v_ULTIMATE.start_main_~x~0#1_21 * v_ULTIMATE.start_main_~x~0#1_21 <= x))) || (0 <= c && c <= 0) RESULT: Ultimate proved your program to be correct! [2023-02-15 02:17:08,976 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