./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.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 302c18c494f9017ecbb07643194b1d54ba0a6bba467355d4f775638dea57e539 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 07:56:45,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 07:56:45,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 07:56:45,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 07:56:45,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 07:56:45,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 07:56:45,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 07:56:45,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 07:56:45,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 07:56:45,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 07:56:45,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 07:56:45,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 07:56:45,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 07:56:45,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 07:56:45,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 07:56:45,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 07:56:45,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 07:56:45,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 07:56:45,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 07:56:45,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 07:56:45,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 07:56:45,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 07:56:45,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 07:56:45,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 07:56:45,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 07:56:45,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 07:56:45,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 07:56:45,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 07:56:45,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 07:56:45,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 07:56:45,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 07:56:45,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 07:56:45,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 07:56:45,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 07:56:45,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 07:56:45,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 07:56:45,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 07:56:45,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 07:56:45,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 07:56:45,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 07:56:45,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 07:56:45,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 07:56:45,537 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 07:56:45,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 07:56:45,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 07:56:45,538 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 07:56:45,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 07:56:45,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 07:56:45,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 07:56:45,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 07:56:45,539 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 07:56:45,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 07:56:45,539 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 07:56:45,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 07:56:45,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 07:56:45,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 07:56:45,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 07:56:45,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:56:45,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 07:56:45,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 07:56:45,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 07:56:45,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 07:56:45,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 07:56:45,542 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 07:56:45,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 07:56:45,542 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 07:56:45,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 07:56:45,542 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 07:56:45,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302c18c494f9017ecbb07643194b1d54ba0a6bba467355d4f775638dea57e539 [2023-02-18 07:56:45,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 07:56:45,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 07:56:45,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 07:56:45,747 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 07:56:45,747 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 07:56:45,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2023-02-18 07:56:46,722 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 07:56:46,854 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 07:56:46,855 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2023-02-18 07:56:46,858 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25335c52d/ec59e62d543c429b86fa7a27ead91440/FLAGdd1a1fc9b [2023-02-18 07:56:46,875 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25335c52d/ec59e62d543c429b86fa7a27ead91440 [2023-02-18 07:56:46,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 07:56:46,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 07:56:46,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 07:56:46,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 07:56:46,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 07:56:46,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:56:46" (1/1) ... [2023-02-18 07:56:46,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42833e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:46, skipping insertion in model container [2023-02-18 07:56:46,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:56:46" (1/1) ... [2023-02-18 07:56:46,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 07:56:46,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 07:56:47,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:56:47,009 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 07:56:47,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:56:47,029 INFO L208 MainTranslator]: Completed translation [2023-02-18 07:56:47,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47 WrapperNode [2023-02-18 07:56:47,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 07:56:47,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 07:56:47,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 07:56:47,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 07:56:47,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,050 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2023-02-18 07:56:47,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 07:56:47,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 07:56:47,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 07:56:47,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 07:56:47,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,062 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 07:56:47,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 07:56:47,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 07:56:47,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 07:56:47,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (1/1) ... [2023-02-18 07:56:47,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:56:47,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:56:47,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 07:56:47,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 07:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-18 07:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 07:56:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 07:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-18 07:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-18 07:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 07:56:47,168 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 07:56:47,170 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 07:56:47,301 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 07:56:47,305 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 07:56:47,305 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 07:56:47,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:56:47 BoogieIcfgContainer [2023-02-18 07:56:47,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 07:56:47,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 07:56:47,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 07:56:47,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 07:56:47,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:56:46" (1/3) ... [2023-02-18 07:56:47,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3b2f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:56:47, skipping insertion in model container [2023-02-18 07:56:47,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:47" (2/3) ... [2023-02-18 07:56:47,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3b2f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:56:47, skipping insertion in model container [2023-02-18 07:56:47,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:56:47" (3/3) ... [2023-02-18 07:56:47,312 INFO L112 eAbstractionObserver]: Analyzing ICFG Arrays03-ValueRestictsIndex-2.c [2023-02-18 07:56:47,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 07:56:47,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 07:56:47,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 07:56:47,357 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;@a9834ce, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 07:56:47,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 07:56:47,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:47,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 07:56:47,380 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:47,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 07:56:47,382 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)] === [2023-02-18 07:56:47,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:47,388 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2023-02-18 07:56:47,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:47,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010349412] [2023-02-18 07:56:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:47,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:47,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:47,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010349412] [2023-02-18 07:56:47,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010349412] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:56:47,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:56:47,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:56:47,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520374408] [2023-02-18 07:56:47,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:56:47,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:56:47,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:47,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:56:47,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 07:56:47,579 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-18 07:56:47,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:47,642 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2023-02-18 07:56:47,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:56:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2023-02-18 07:56:47,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:47,649 INFO L225 Difference]: With dead ends: 38 [2023-02-18 07:56:47,649 INFO L226 Difference]: Without dead ends: 20 [2023-02-18 07:56:47,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:56:47,663 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:47,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:47,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-18 07:56:47,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-18 07:56:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-02-18 07:56:47,685 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 5 [2023-02-18 07:56:47,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:47,685 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-02-18 07:56:47,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-18 07:56:47,686 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-02-18 07:56:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 07:56:47,686 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:47,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-02-18 07:56:47,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 07:56:47,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 07:56:47,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:47,687 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2023-02-18 07:56:47,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:47,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371823751] [2023-02-18 07:56:47,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:47,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:47,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:47,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:47,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371823751] [2023-02-18 07:56:47,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371823751] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:56:47,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815646925] [2023-02-18 07:56:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:47,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:56:47,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:56:47,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:56:47,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 07:56:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:47,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 07:56:47,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:56:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:47,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 07:56:47,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815646925] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:56:47,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 07:56:47,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-18 07:56:47,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478686350] [2023-02-18 07:56:47,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:56:47,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:56:47,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:56:47,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 07:56:47,880 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2023-02-18 07:56:47,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:47,902 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2023-02-18 07:56:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:56:47,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-18 07:56:47,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:47,903 INFO L225 Difference]: With dead ends: 20 [2023-02-18 07:56:47,904 INFO L226 Difference]: Without dead ends: 19 [2023-02-18 07:56:47,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-02-18 07:56:47,905 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:47,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 23 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-18 07:56:47,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-18 07:56:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-02-18 07:56:47,908 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2023-02-18 07:56:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:47,909 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-02-18 07:56:47,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2023-02-18 07:56:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-02-18 07:56:47,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 07:56:47,909 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:47,909 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-02-18 07:56:47,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 07:56:48,118 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 [2023-02-18 07:56:48,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 07:56:48,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:48,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2023-02-18 07:56:48,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:48,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758067132] [2023-02-18 07:56:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:48,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 07:56:48,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:48,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758067132] [2023-02-18 07:56:48,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758067132] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:56:48,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:56:48,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:56:48,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313966417] [2023-02-18 07:56:48,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:56:48,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:56:48,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:48,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:56:48,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 07:56:48,167 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:48,182 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2023-02-18 07:56:48,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:56:48,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 07:56:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:48,184 INFO L225 Difference]: With dead ends: 19 [2023-02-18 07:56:48,184 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 07:56:48,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:56:48,187 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:48,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 33 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:48,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 07:56:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-02-18 07:56:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-02-18 07:56:48,192 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2023-02-18 07:56:48,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:48,192 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-02-18 07:56:48,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-02-18 07:56:48,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 07:56:48,193 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:48,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:56:48,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 07:56:48,193 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 07:56:48,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:48,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1577266116, now seen corresponding path program 1 times [2023-02-18 07:56:48,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:48,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144326293] [2023-02-18 07:56:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:48,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:48,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:48,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:48,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144326293] [2023-02-18 07:56:48,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144326293] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:56:48,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232769481] [2023-02-18 07:56:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:48,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:56:48,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:56:48,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:56:48,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 07:56:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:48,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 07:56:48,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:56:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:48,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:56:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:48,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232769481] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:56:48,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:56:48,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-02-18 07:56:48,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899134491] [2023-02-18 07:56:48,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:56:48,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 07:56:48,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 07:56:48,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-18 07:56:48,313 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 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) [2023-02-18 07:56:48,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:48,349 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-02-18 07:56:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 07:56:48,350 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 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 [2023-02-18 07:56:48,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:48,351 INFO L225 Difference]: With dead ends: 31 [2023-02-18 07:56:48,351 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 07:56:48,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-02-18 07:56:48,357 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:48,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 46 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:48,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 07:56:48,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-18 07:56:48,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-02-18 07:56:48,361 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 12 [2023-02-18 07:56:48,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:48,361 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-02-18 07:56:48,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 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) [2023-02-18 07:56:48,361 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-02-18 07:56:48,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 07:56:48,362 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:48,362 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:56:48,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 07:56:48,562 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,SelfDestructingSolverStorable3 [2023-02-18 07:56:48,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 07:56:48,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:48,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1439205956, now seen corresponding path program 2 times [2023-02-18 07:56:48,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:48,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021045719] [2023-02-18 07:56:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:48,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-18 07:56:48,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:48,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021045719] [2023-02-18 07:56:48,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021045719] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:56:48,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:56:48,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:56:48,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209206245] [2023-02-18 07:56:48,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:56:48,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:56:48,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:48,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:56:48,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 07:56:48,609 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:48,620 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-02-18 07:56:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:56:48,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-18 07:56:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:48,620 INFO L225 Difference]: With dead ends: 23 [2023-02-18 07:56:48,620 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 07:56:48,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:56:48,621 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:48,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:48,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 07:56:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-18 07:56:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-02-18 07:56:48,624 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 20 [2023-02-18 07:56:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:48,624 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-02-18 07:56:48,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,624 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-02-18 07:56:48,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 07:56:48,624 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:48,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:56:48,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 07:56:48,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 07:56:48,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:48,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1665711750, now seen corresponding path program 1 times [2023-02-18 07:56:48,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:48,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523769704] [2023-02-18 07:56:48,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:48,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:48,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:48,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523769704] [2023-02-18 07:56:48,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523769704] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:56:48,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598418882] [2023-02-18 07:56:48,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:48,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:56:48,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:56:48,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:56:48,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 07:56:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:48,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 07:56:48,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:56:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:48,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:56:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:48,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598418882] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:56:48,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:56:48,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-02-18 07:56:48,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646119915] [2023-02-18 07:56:48,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:56:48,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-18 07:56:48,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-18 07:56:48,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-02-18 07:56:48,867 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:48,945 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2023-02-18 07:56:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-18 07:56:48,947 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 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 21 [2023-02-18 07:56:48,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:48,947 INFO L225 Difference]: With dead ends: 45 [2023-02-18 07:56:48,947 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 07:56:48,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-02-18 07:56:48,949 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:48,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 78 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:48,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 07:56:48,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-02-18 07:56:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2023-02-18 07:56:48,961 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 21 [2023-02-18 07:56:48,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:48,961 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2023-02-18 07:56:48,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:48,962 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2023-02-18 07:56:48,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-18 07:56:48,962 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:48,962 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:56:48,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 07:56:49,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:56:49,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 07:56:49,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:49,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1937468534, now seen corresponding path program 2 times [2023-02-18 07:56:49,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:49,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497910287] [2023-02-18 07:56:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:49,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:49,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:49,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497910287] [2023-02-18 07:56:49,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497910287] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:56:49,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802421129] [2023-02-18 07:56:49,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:56:49,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:56:49,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:56:49,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:56:49,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 07:56:49,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-18 07:56:49,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:56:49,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 07:56:49,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:56:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-02-18 07:56:49,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 07:56:49,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802421129] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:56:49,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 07:56:49,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 19 [2023-02-18 07:56:49,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156554125] [2023-02-18 07:56:49,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:56:49,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:56:49,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:49,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:56:49,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2023-02-18 07:56:49,485 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:49,495 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-18 07:56:49,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:56:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) Word has length 37 [2023-02-18 07:56:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:49,497 INFO L225 Difference]: With dead ends: 38 [2023-02-18 07:56:49,498 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 07:56:49,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2023-02-18 07:56:49,499 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:49,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 07:56:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 07:56:49,504 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) [2023-02-18 07:56:49,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 07:56:49,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2023-02-18 07:56:49,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:49,504 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 07:56:49,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:49,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 07:56:49,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 07:56:49,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-18 07:56:49,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-18 07:56:49,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-18 07:56:49,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-18 07:56:49,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 07:56:49,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:56:49,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 07:56:49,720 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-02-18 07:56:49,720 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-02-18 07:56:49,720 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-02-18 07:56:49,720 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 26) no Hoare annotation was computed. [2023-02-18 07:56:49,720 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2023-02-18 07:56:49,720 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2023-02-18 07:56:49,720 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2023-02-18 07:56:49,721 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (let ((.cse1 (< |ULTIMATE.start_main_~i~0#1| 1048)) (.cse0 (<= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|)))) (or (and (< |ULTIMATE.start_main_~i~0#1| 1046) .cse0) (and (<= |ULTIMATE.start_main_~i~0#1| 2) .cse1 .cse0) (and .cse1 .cse0) (and (= |ULTIMATE.start_main_~i~0#1| 0) (>= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~i~0#1| 1047)) .cse0 (and (< |ULTIMATE.start_main_~i~0#1| 1047) .cse0) (and (<= |ULTIMATE.start_main_~i~0#1| 3) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 1)))) [2023-02-18 07:56:49,721 INFO L899 garLoopResultBuilder]: For program point L15-6(lines 11 28) no Hoare annotation was computed. [2023-02-18 07:56:49,721 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 11 28) the Hoare annotation is: true [2023-02-18 07:56:49,721 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 07:56:49,721 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L899 garLoopResultBuilder]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-02-18 07:56:49,722 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~k~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 1047) (<= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))) [2023-02-18 07:56:49,725 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-02-18 07:56:49,730 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 07:56:49,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 07:56:49 BoogieIcfgContainer [2023-02-18 07:56:49,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 07:56:49,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 07:56:49,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 07:56:49,748 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 07:56:49,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:56:47" (3/4) ... [2023-02-18 07:56:49,750 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 07:56:49,756 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-02-18 07:56:49,757 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 07:56:49,757 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 07:56:49,757 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 07:56:49,784 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 07:56:49,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 07:56:49,784 INFO L158 Benchmark]: Toolchain (without parser) took 2905.23ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 99.0MB in the beginning and 134.2MB in the end (delta: -35.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-02-18 07:56:49,785 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 81.4MB in the beginning and 81.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:56:49,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.52ms. Allocated memory is still 138.4MB. Free memory was 98.5MB in the beginning and 89.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 07:56:49,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.68ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 87.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 07:56:49,788 INFO L158 Benchmark]: Boogie Preprocessor took 12.64ms. Allocated memory is still 138.4MB. Free memory was 87.4MB in the beginning and 86.4MB in the end (delta: 964.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:56:49,788 INFO L158 Benchmark]: RCFGBuilder took 242.47ms. Allocated memory is still 138.4MB. Free memory was 86.4MB in the beginning and 76.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 07:56:49,788 INFO L158 Benchmark]: TraceAbstraction took 2439.60ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 75.9MB in the beginning and 136.3MB in the end (delta: -60.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:56:49,789 INFO L158 Benchmark]: Witness Printer took 36.39ms. Allocated memory is still 190.8MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 07:56:49,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 81.4MB in the beginning and 81.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 148.52ms. Allocated memory is still 138.4MB. Free memory was 98.5MB in the beginning and 89.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.68ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 87.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.64ms. Allocated memory is still 138.4MB. Free memory was 87.4MB in the beginning and 86.4MB in the end (delta: 964.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 242.47ms. Allocated memory is still 138.4MB. Free memory was 86.4MB in the beginning and 76.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2439.60ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 75.9MB in the beginning and 136.3MB in the end (delta: -60.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.39ms. Allocated memory is still 190.8MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 277 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 190 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 87 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 93 SyntacticMatches, 5 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=6, InterpolantAutomatonStates: 44, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 89 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 193 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 479 SizeOfPredicates, 8 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 113/255 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((((((i < 1046 && 0 <= -1 + i) || ((i <= 2 && i < 1048) && 0 <= -1 + i)) || (i < 1048 && 0 <= -1 + i)) || ((i == 0 && i >= 0) && i <= 1047)) || 0 <= -1 + i) || (i < 1047 && 0 <= -1 + i)) || (i <= 3 && 0 <= -1 + i)) || (0 <= -1 + i && i <= 1) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((k >= 0 && x <= 2147483647) && k <= 1047) && 0 <= -1 + i RESULT: Ultimate proved your program to be correct! [2023-02-18 07:56:49,823 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