./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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/goblint-regression/09-regions_16-arrayloop_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:04:25,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:04:25,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:04:25,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:04:25,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:04:25,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:04:25,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:04:25,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:04:25,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:04:25,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:04:25,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:04:25,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:04:25,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:04:25,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:04:25,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:04:25,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:04:25,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:04:25,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:04:25,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:04:25,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:04:25,312 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:04:25,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:04:25,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:04:25,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:04:25,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:04:25,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:04:25,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:04:25,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:04:25,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:04:25,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:04:25,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:04:25,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:04:25,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:04:25,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:04:25,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:04:25,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:04:25,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:04:25,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:04:25,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:04:25,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:04:25,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:04:25,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:04:25,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:04:25,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:04:25,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:04:25,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:04:25,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:04:25,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:04:25,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:04:25,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:04:25,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:04:25,351 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:04:25,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:04:25,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:04:25,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:04:25,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:04:25,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:04:25,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:04:25,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:04:25,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:04:25,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:04:25,353 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:04:25,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:04:25,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:04:25,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:04:25,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:04:25,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:04:25,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:04:25,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:04:25,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:04:25,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:04:25,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:04:25,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:04:25,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:04:25,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:04:25,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:04:25,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2022-07-14 14:04:25,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:04:25,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:04:25,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:04:25,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:04:25,548 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:04:25,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-07-14 14:04:25,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8280ed0/f5d7cef7f6b24b57b860694043ae07cb/FLAGad3903f2b [2022-07-14 14:04:26,030 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:04:26,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-07-14 14:04:26,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8280ed0/f5d7cef7f6b24b57b860694043ae07cb/FLAGad3903f2b [2022-07-14 14:04:26,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8280ed0/f5d7cef7f6b24b57b860694043ae07cb [2022-07-14 14:04:26,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:04:26,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:04:26,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:04:26,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:04:26,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:04:26,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15de9c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26, skipping insertion in model container [2022-07-14 14:04:26,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:04:26,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:04:26,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:04:26,527 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:04:26,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:04:26,605 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:04:26,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26 WrapperNode [2022-07-14 14:04:26,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:04:26,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:04:26,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:04:26,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:04:26,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,649 INFO L137 Inliner]: procedures = 369, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 133 [2022-07-14 14:04:26,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:04:26,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:04:26,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:04:26,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:04:26,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:04:26,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:04:26,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:04:26,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:04:26,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (1/1) ... [2022-07-14 14:04:26,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:04:26,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:04:26,723 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) [2022-07-14 14:04:26,744 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 [2022-07-14 14:04:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:04:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:04:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:04:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:04:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:04:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:04:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:04:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:04:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:04:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:04:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:04:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:04:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:04:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:04:26,755 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:04:26,873 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:04:26,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:04:27,091 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:04:27,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:04:27,101 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-14 14:04:27,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:04:27 BoogieIcfgContainer [2022-07-14 14:04:27,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:04:27,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:04:27,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:04:27,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:04:27,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:04:26" (1/3) ... [2022-07-14 14:04:27,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7927ef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:04:27, skipping insertion in model container [2022-07-14 14:04:27,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:26" (2/3) ... [2022-07-14 14:04:27,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7927ef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:04:27, skipping insertion in model container [2022-07-14 14:04:27,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:04:27" (3/3) ... [2022-07-14 14:04:27,109 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2022-07-14 14:04:27,112 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:04:27,119 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:04:27,119 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-14 14:04:27,119 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:04:27,173 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:04:27,211 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:04:27,222 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 160 transitions, 325 flow [2022-07-14 14:04:27,226 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 160 transitions, 325 flow [2022-07-14 14:04:27,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 160 transitions, 325 flow [2022-07-14 14:04:27,263 INFO L129 PetriNetUnfolder]: 6/159 cut-off events. [2022-07-14 14:04:27,264 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:04:27,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 6/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 250 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2022-07-14 14:04:27,272 INFO L116 LiptonReduction]: Number of co-enabled transitions 5586 [2022-07-14 14:05:09,333 INFO L131 LiptonReduction]: Checked pairs total: 7879 [2022-07-14 14:05:09,333 INFO L133 LiptonReduction]: Total number of compositions: 149 [2022-07-14 14:05:09,338 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 37 transitions, 79 flow [2022-07-14 14:05:09,357 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 229 states, 213 states have (on average 2.131455399061033) internal successors, (454), 228 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:05:09,372 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5d47c31f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f8b0e1f [2022-07-14 14:05:09,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-14 14:05:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 213 states have (on average 2.131455399061033) internal successors, (454), 228 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:05:09,378 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:09,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:05:09,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:09,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:09,382 INFO L85 PathProgramCache]: Analyzing trace with hash 18434, now seen corresponding path program 1 times [2022-07-14 14:05:09,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:09,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088731414] [2022-07-14 14:05:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:09,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:09,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:09,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088731414] [2022-07-14 14:05:09,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088731414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:09,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:09,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:05:09,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175490297] [2022-07-14 14:05:09,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:09,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 14:05:09,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:09,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 14:05:09,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:05:09,571 INFO L87 Difference]: Start difference. First operand has 229 states, 213 states have (on average 2.131455399061033) internal successors, (454), 228 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:09,646 INFO L93 Difference]: Finished difference Result 213 states and 423 transitions. [2022-07-14 14:05:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:05:09,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-07-14 14:05:09,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:09,659 INFO L225 Difference]: With dead ends: 213 [2022-07-14 14:05:09,660 INFO L226 Difference]: Without dead ends: 213 [2022-07-14 14:05:09,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:05:09,664 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:09,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-07-14 14:05:09,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-07-14 14:05:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 201 states have (on average 2.1044776119402986) internal successors, (423), 212 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 423 transitions. [2022-07-14 14:05:09,717 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 423 transitions. Word has length 2 [2022-07-14 14:05:09,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:09,717 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 423 transitions. [2022-07-14 14:05:09,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 423 transitions. [2022-07-14 14:05:09,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:05:09,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:09,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:05:09,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:05:09,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:09,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash 18437, now seen corresponding path program 1 times [2022-07-14 14:05:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:09,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051151011] [2022-07-14 14:05:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:09,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:09,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:09,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051151011] [2022-07-14 14:05:09,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051151011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:09,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:09,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:05:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778237474] [2022-07-14 14:05:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:09,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:09,790 INFO L87 Difference]: Start difference. First operand 213 states and 423 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:09,836 INFO L93 Difference]: Finished difference Result 198 states and 394 transitions. [2022-07-14 14:05:09,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-07-14 14:05:09,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:09,839 INFO L225 Difference]: With dead ends: 198 [2022-07-14 14:05:09,840 INFO L226 Difference]: Without dead ends: 198 [2022-07-14 14:05:09,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:09,847 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:09,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:05:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-07-14 14:05:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-07-14 14:05:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 191 states have (on average 2.06282722513089) internal successors, (394), 197 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 394 transitions. [2022-07-14 14:05:09,860 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 394 transitions. Word has length 2 [2022-07-14 14:05:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:09,860 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 394 transitions. [2022-07-14 14:05:09,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 394 transitions. [2022-07-14 14:05:09,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:05:09,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:09,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:05:09,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:05:09,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:09,862 INFO L85 PathProgramCache]: Analyzing trace with hash 547424293, now seen corresponding path program 1 times [2022-07-14 14:05:09,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:09,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169329906] [2022-07-14 14:05:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:09,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:09,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:09,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169329906] [2022-07-14 14:05:09,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169329906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:09,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:09,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:05:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516898706] [2022-07-14 14:05:09,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:09,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:09,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:09,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:09,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:09,918 INFO L87 Difference]: Start difference. First operand 198 states and 394 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2022-07-14 14:05:09,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:09,988 INFO L93 Difference]: Finished difference Result 353 states and 703 transitions. [2022-07-14 14:05:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:09,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 [2022-07-14 14:05:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:09,991 INFO L225 Difference]: With dead ends: 353 [2022-07-14 14:05:09,991 INFO L226 Difference]: Without dead ends: 353 [2022-07-14 14:05:09,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:09,996 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:09,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:10,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-14 14:05:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 325. [2022-07-14 14:05:10,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 318 states have (on average 2.0345911949685536) internal successors, (647), 324 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 647 transitions. [2022-07-14 14:05:10,022 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 647 transitions. Word has length 5 [2022-07-14 14:05:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:10,022 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 647 transitions. [2022-07-14 14:05:10,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2022-07-14 14:05:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 647 transitions. [2022-07-14 14:05:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:05:10,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:10,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:05:10,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:05:10,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:10,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:10,026 INFO L85 PathProgramCache]: Analyzing trace with hash -137436310, now seen corresponding path program 1 times [2022-07-14 14:05:10,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:10,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582353977] [2022-07-14 14:05:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:10,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:10,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:10,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:10,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582353977] [2022-07-14 14:05:10,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582353977] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:05:10,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944200625] [2022-07-14 14:05:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:10,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:10,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:05:10,082 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) [2022-07-14 14:05:10,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:05:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:10,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:05:10,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:05:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:05:10,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:05:10,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944200625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:10,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:05:10,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-07-14 14:05:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391132419] [2022-07-14 14:05:10,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:10,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:10,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:10,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:05:10,202 INFO L87 Difference]: Start difference. First operand 325 states and 647 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:10,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:10,300 INFO L93 Difference]: Finished difference Result 279 states and 555 transitions. [2022-07-14 14:05:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:10,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 14:05:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:10,301 INFO L225 Difference]: With dead ends: 279 [2022-07-14 14:05:10,301 INFO L226 Difference]: Without dead ends: 279 [2022-07-14 14:05:10,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:05:10,302 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:10,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-14 14:05:10,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-07-14 14:05:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 276 states have (on average 2.010869565217391) internal successors, (555), 278 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:10,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 555 transitions. [2022-07-14 14:05:10,309 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 555 transitions. Word has length 6 [2022-07-14 14:05:10,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:10,309 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 555 transitions. [2022-07-14 14:05:10,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 555 transitions. [2022-07-14 14:05:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 14:05:10,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:10,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:05:10,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:05:10,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:10,527 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash -617465143, now seen corresponding path program 1 times [2022-07-14 14:05:10,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:10,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171729735] [2022-07-14 14:05:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:10,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:10,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:10,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171729735] [2022-07-14 14:05:10,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171729735] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:05:10,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895746504] [2022-07-14 14:05:10,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:10,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:10,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:05:10,572 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) [2022-07-14 14:05:10,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:05:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:10,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:05:10,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:05:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:10,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:05:10,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:10,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895746504] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:05:10,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:05:10,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-14 14:05:10,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750160991] [2022-07-14 14:05:10,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:05:10,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:05:10,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:10,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:05:10,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:05:10,706 INFO L87 Difference]: Start difference. First operand 279 states and 555 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 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) [2022-07-14 14:05:10,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:10,883 INFO L93 Difference]: Finished difference Result 570 states and 1134 transitions. [2022-07-14 14:05:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:05:10,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-14 14:05:10,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:10,885 INFO L225 Difference]: With dead ends: 570 [2022-07-14 14:05:10,885 INFO L226 Difference]: Without dead ends: 524 [2022-07-14 14:05:10,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:05:10,886 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 198 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:10,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 10 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:05:10,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-07-14 14:05:10,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2022-07-14 14:05:10,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 523 states have (on average 1.9923518164435947) internal successors, (1042), 523 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1042 transitions. [2022-07-14 14:05:10,895 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1042 transitions. Word has length 14 [2022-07-14 14:05:10,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:10,895 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 1042 transitions. [2022-07-14 14:05:10,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 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) [2022-07-14 14:05:10,895 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1042 transitions. [2022-07-14 14:05:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 14:05:10,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:10,896 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:05:10,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:05:11,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:11,100 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:11,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:11,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1581294140, now seen corresponding path program 2 times [2022-07-14 14:05:11,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:11,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392185078] [2022-07-14 14:05:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:11,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:11,172 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 14:05:11,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:11,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392185078] [2022-07-14 14:05:11,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392185078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:11,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:11,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:05:11,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545628075] [2022-07-14 14:05:11,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:11,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:11,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:11,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:11,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:11,174 INFO L87 Difference]: Start difference. First operand 524 states and 1042 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:11,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:11,254 INFO L93 Difference]: Finished difference Result 947 states and 1888 transitions. [2022-07-14 14:05:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:11,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-14 14:05:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:11,260 INFO L225 Difference]: With dead ends: 947 [2022-07-14 14:05:11,260 INFO L226 Difference]: Without dead ends: 947 [2022-07-14 14:05:11,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:11,261 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:11,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:11,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-07-14 14:05:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2022-07-14 14:05:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 1.9957716701902748) internal successors, (1888), 946 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1888 transitions. [2022-07-14 14:05:11,280 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1888 transitions. Word has length 17 [2022-07-14 14:05:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:11,280 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1888 transitions. [2022-07-14 14:05:11,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:05:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1888 transitions. [2022-07-14 14:05:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-14 14:05:11,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:11,286 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-14 14:05:11,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:05:11,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:11,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:11,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1140948240, now seen corresponding path program 1 times [2022-07-14 14:05:11,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:11,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030732823] [2022-07-14 14:05:11,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:11,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-14 14:05:11,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:11,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030732823] [2022-07-14 14:05:11,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030732823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:11,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:11,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:05:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157125054] [2022-07-14 14:05:11,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:11,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:11,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:11,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:11,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:11,350 INFO L87 Difference]: Start difference. First operand 947 states and 1888 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 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) [2022-07-14 14:05:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:11,406 INFO L93 Difference]: Finished difference Result 900 states and 1794 transitions. [2022-07-14 14:05:11,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:11,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 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 26 [2022-07-14 14:05:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:11,407 INFO L225 Difference]: With dead ends: 900 [2022-07-14 14:05:11,407 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:05:11,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:11,408 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:11,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:05:11,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:05:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:05:11,409 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) [2022-07-14 14:05:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:05:11,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-07-14 14:05:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:11,409 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:05:11,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 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) [2022-07-14 14:05:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:05:11,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:05:11,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-07-14 14:05:11,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-07-14 14:05:11,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-07-14 14:05:11,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 14:05:11,415 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-07-14 14:05:11,418 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:05:11,418 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:05:11,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:05:11 BasicIcfg [2022-07-14 14:05:11,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:05:11,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:05:11,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:05:11,420 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:05:11,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:04:27" (3/4) ... [2022-07-14 14:05:11,422 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:05:11,426 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-14 14:05:11,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-07-14 14:05:11,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-14 14:05:11,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 14:05:11,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-14 14:05:11,450 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:05:11,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:05:11,450 INFO L158 Benchmark]: Toolchain (without parser) took 45394.37ms. Allocated memory was 94.4MB in the beginning and 144.7MB in the end (delta: 50.3MB). Free memory was 59.3MB in the beginning and 84.4MB in the end (delta: -25.0MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-07-14 14:05:11,450 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:05:11,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.46ms. Allocated memory is still 94.4MB. Free memory was 59.2MB in the beginning and 41.8MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 14:05:11,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.27ms. Allocated memory is still 94.4MB. Free memory was 41.8MB in the beginning and 38.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:05:11,451 INFO L158 Benchmark]: Boogie Preprocessor took 36.29ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 38.9MB in the beginning and 96.4MB in the end (delta: -57.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-07-14 14:05:11,451 INFO L158 Benchmark]: RCFGBuilder took 416.43ms. Allocated memory is still 119.5MB. Free memory was 96.3MB in the beginning and 79.2MB in the end (delta: 17.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-07-14 14:05:11,451 INFO L158 Benchmark]: TraceAbstraction took 44315.66ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 78.5MB in the beginning and 87.5MB in the end (delta: -9.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-07-14 14:05:11,451 INFO L158 Benchmark]: Witness Printer took 29.63ms. Allocated memory is still 144.7MB. Free memory was 87.5MB in the beginning and 84.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 14:05:11,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.46ms. Allocated memory is still 94.4MB. Free memory was 59.2MB in the beginning and 41.8MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.27ms. Allocated memory is still 94.4MB. Free memory was 41.8MB in the beginning and 38.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.29ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 38.9MB in the beginning and 96.4MB in the end (delta: -57.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 416.43ms. Allocated memory is still 119.5MB. Free memory was 96.3MB in the beginning and 79.2MB in the end (delta: 17.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 44315.66ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 78.5MB in the beginning and 87.5MB in the end (delta: -9.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 29.63ms. Allocated memory is still 144.7MB. Free memory was 87.5MB in the beginning and 84.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.1s, 158 PlacesBefore, 38 PlacesAfterwards, 160 TransitionsBefore, 37 TransitionsAfterwards, 5586 CoEnabledTransitionPairs, 6 FixpointIterations, 54 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 149 TotalNumberOfCompositions, 7879 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4334, positive: 4110, positive conditional: 0, positive unconditional: 4110, negative: 224, negative conditional: 0, negative unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3516, positive: 3437, positive conditional: 0, positive unconditional: 3437, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3516, positive: 3396, positive conditional: 0, positive unconditional: 3396, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 120, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36342, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 479, negative conditional: 0, negative unconditional: 479, unknown: 35799, unknown conditional: 0, unknown unconditional: 35799] ], Cache Queries: [ total: 4334, positive: 673, positive conditional: 0, positive unconditional: 673, negative: 145, negative conditional: 0, negative unconditional: 145, unknown: 3516, unknown conditional: 0, unknown unconditional: 3516] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42 - 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: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 204 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 44.2s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 42.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 428 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 19 mSDtfsCounter, 428 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=947occurred in iteration=6, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 28 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 30/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-14 14:05:11,527 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