./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:34:47,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:34:47,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:34:47,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:34:47,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:34:47,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:34:47,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:34:47,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:34:47,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:34:47,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:34:47,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:34:47,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:34:47,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:34:47,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:34:47,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:34:47,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:34:47,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:34:47,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:34:47,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:34:47,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:34:47,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:34:47,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:34:47,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:34:47,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:34:47,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:34:47,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:34:47,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:34:47,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:34:47,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:34:47,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:34:47,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:34:47,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:34:47,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:34:47,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:34:47,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:34:47,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:34:47,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:34:47,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:34:47,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:34:47,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:34:47,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:34:47,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-13 18:34:47,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:34:47,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:34:47,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:34:47,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:34:47,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:34:47,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:34:47,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:34:47,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:34:47,924 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:34:47,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:34:47,924 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:34:47,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:34:47,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:34:47,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:34:47,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:34:47,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:34:47,927 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 18:34:47,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:34:47,927 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:34:47,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:34:47,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:34:47,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:34:47,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:34:47,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:34:47,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:34:47,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:34:47,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:34:47,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:34:47,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:34:47,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:34:47,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:34:47,930 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 [2021-11-13 18:34:48,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:34:48,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:34:48,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:34:48,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:34:48,261 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:34:48,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/termination-crafted/Parallel.c [2021-11-13 18:34:48,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/data/45503ff2d/128eb4913c0f43369ae55d85144f4fb1/FLAG745ffabbe [2021-11-13 18:34:48,969 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:34:48,969 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/sv-benchmarks/c/termination-crafted/Parallel.c [2021-11-13 18:34:48,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/data/45503ff2d/128eb4913c0f43369ae55d85144f4fb1/FLAG745ffabbe [2021-11-13 18:34:49,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/data/45503ff2d/128eb4913c0f43369ae55d85144f4fb1 [2021-11-13 18:34:49,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:34:49,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:34:49,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:34:49,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:34:49,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:34:49,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2b57d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49, skipping insertion in model container [2021-11-13 18:34:49,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:34:49,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:34:49,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:34:49,591 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:34:49,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:34:49,618 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:34:49,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49 WrapperNode [2021-11-13 18:34:49,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:34:49,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:34:49,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:34:49,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:34:49,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:34:49,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:34:49,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:34:49,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:34:49,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:34:49,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:34:49,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:34:49,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:34:49,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (1/1) ... [2021-11-13 18:34:49,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:34:49,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:34:49,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:34:49,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:34:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:34:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:34:50,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:34:50,021 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:34:50,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:34:50 BoogieIcfgContainer [2021-11-13 18:34:50,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:34:50,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:34:50,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:34:50,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:34:50,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:34:49" (1/3) ... [2021-11-13 18:34:50,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ddd5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:34:50, skipping insertion in model container [2021-11-13 18:34:50,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:34:49" (2/3) ... [2021-11-13 18:34:50,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ddd5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:34:50, skipping insertion in model container [2021-11-13 18:34:50,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:34:50" (3/3) ... [2021-11-13 18:34:50,034 INFO L111 eAbstractionObserver]: Analyzing ICFG Parallel.c [2021-11-13 18:34:50,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:34:50,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-13 18:34:50,093 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:34:50,100 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:34:50,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-13 18:34:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 18:34:50,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:34:50,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 18:34:50,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 18:34:50,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:34:50,136 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2021-11-13 18:34:50,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:34:50,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258580250] [2021-11-13 18:34:50,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:50,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:34:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:50,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:34:50,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258580250] [2021-11-13 18:34:50,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258580250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:34:50,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:34:50,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:34:50,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807305066] [2021-11-13 18:34:50,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:34:50,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:34:50,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:34:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:34:50,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:34:50,320 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:34:50,344 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-11-13 18:34:50,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:34:50,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 18:34:50,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:34:50,371 INFO L225 Difference]: With dead ends: 20 [2021-11-13 18:34:50,371 INFO L226 Difference]: Without dead ends: 11 [2021-11-13 18:34:50,374 INFO L932 BasicCegarLoop]: 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 [2021-11-13 18:34:50,378 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.77ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.25ms IncrementalHoareTripleChecker+Time [2021-11-13 18:34:50,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 9.25ms Time] [2021-11-13 18:34:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-13 18:34:50,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-13 18:34:50,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.5) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-13 18:34:50,448 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2021-11-13 18:34:50,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:34:50,449 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-13 18:34:50,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-13 18:34:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 18:34:50,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:34:50,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 18:34:50,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:34:50,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 18:34:50,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:34:50,457 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2021-11-13 18:34:50,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:34:50,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941084795] [2021-11-13 18:34:50,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:50,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:34:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:50,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:34:50,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941084795] [2021-11-13 18:34:50,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941084795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:34:50,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:34:50,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:34:50,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930871435] [2021-11-13 18:34:50,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:34:50,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:34:50,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:34:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:34:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:34:50,515 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:34:50,527 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-11-13 18:34:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:34:50,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 18:34:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:34:50,528 INFO L225 Difference]: With dead ends: 11 [2021-11-13 18:34:50,528 INFO L226 Difference]: Without dead ends: 10 [2021-11-13 18:34:50,529 INFO L932 BasicCegarLoop]: 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 [2021-11-13 18:34:50,531 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.38ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.90ms IncrementalHoareTripleChecker+Time [2021-11-13 18:34:50,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.38ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 8.90ms Time] [2021-11-13 18:34:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-13 18:34:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-13 18:34:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-13 18:34:50,536 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 5 [2021-11-13 18:34:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:34:50,536 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-13 18:34:50,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-13 18:34:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 18:34:50,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:34:50,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:34:50,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:34:50,538 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 18:34:50,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:34:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2021-11-13 18:34:50,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:34:50,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983051022] [2021-11-13 18:34:50,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:50,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:34:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:50,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:34:50,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983051022] [2021-11-13 18:34:50,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983051022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:34:50,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:34:50,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:34:50,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443309941] [2021-11-13 18:34:50,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:34:50,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:34:50,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:34:50,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:34:50,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:34:50,643 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2021-11-13 18:34:50,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:34:50,664 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-11-13 18:34:50,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:34:50,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2021-11-13 18:34:50,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:34:50,666 INFO L225 Difference]: With dead ends: 10 [2021-11-13 18:34:50,666 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 18:34:50,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:34:50,668 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.49ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.02ms IncrementalHoareTripleChecker+Time [2021-11-13 18:34:50,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.49ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 17.02ms Time] [2021-11-13 18:34:50,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 18:34:50,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 18:34:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:34:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-13 18:34:50,673 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-11-13 18:34:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:34:50,673 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-13 18:34:50,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2021-11-13 18:34:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-13 18:34:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 18:34:50,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:34:50,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:34:50,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:34:50,675 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 18:34:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:34:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2021-11-13 18:34:50,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:34:50,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173421915] [2021-11-13 18:34:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:34:50,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:34:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:34:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:34:50,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:34:50,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173421915] [2021-11-13 18:34:50,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173421915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:34:50,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:34:50,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:34:50,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789566674] [2021-11-13 18:34:50,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:34:50,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:34:50,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:34:50,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:34:50,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:34:50,722 INFO L87 Difference]: Start difference. First operand 9 states and 10 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) [2021-11-13 18:34:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:34:50,737 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-11-13 18:34:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:34:50,738 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 [2021-11-13 18:34:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:34:50,739 INFO L225 Difference]: With dead ends: 9 [2021-11-13 18:34:50,739 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:34:50,739 INFO L932 BasicCegarLoop]: 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 [2021-11-13 18:34:50,741 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.39ms IncrementalHoareTripleChecker+Time [2021-11-13 18:34:50,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 6 Unknown, 0 Unchecked, 0.35ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 12.39ms Time] [2021-11-13 18:34:50,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:34:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:34:50,750 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) [2021-11-13 18:34:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:34:50,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-11-13 18:34:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:34:50,751 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:34:50,751 INFO L471 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) [2021-11-13 18:34:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:34:50,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:34:50,754 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-13 18:34:50,757 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-13 18:34:50,758 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-13 18:34:50,758 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-13 18:34:50,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:34:50,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:34:50,784 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-13 18:34:50,784 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:34:50,785 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-11-13 18:34:50,785 INFO L854 garLoopResultBuilder]: At program point L29(lines 17 30) the Hoare annotation is: (<= |ULTIMATE.start_main_~y~0#1| 2147483647) [2021-11-13 18:34:50,785 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 27) no Hoare annotation was computed. [2021-11-13 18:34:50,786 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 22 28) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2021-11-13 18:34:50,786 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:34:50,788 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-13 18:34:50,789 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-11-13 18:34:50,789 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:34:50,789 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:34:50,789 INFO L858 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-11-13 18:34:50,790 INFO L858 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-11-13 18:34:50,790 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-13 18:34:50,790 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-13 18:34:50,793 INFO L858 garLoopResultBuilder]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2021-11-13 18:34:50,797 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 18:34:50,799 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:34:50,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:34:50 BoogieIcfgContainer [2021-11-13 18:34:50,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:34:50,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:34:50,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:34:50,825 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:34:50,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:34:50" (3/4) ... [2021-11-13 18:34:50,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:34:50,857 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:34:50,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 18:34:50,863 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:34:50,908 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:34:50,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:34:50,910 INFO L158 Benchmark]: Toolchain (without parser) took 1555.03ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 67.9MB in the beginning and 112.4MB in the end (delta: -44.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:34:50,911 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:34:50,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.43ms. Allocated memory is still 107.0MB. Free memory was 67.7MB in the beginning and 83.2MB in the end (delta: -15.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:34:50,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.51ms. Allocated memory is still 107.0MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:34:50,912 INFO L158 Benchmark]: Boogie Preprocessor took 30.65ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 81.1MB in the end (delta: 848.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:34:50,913 INFO L158 Benchmark]: RCFGBuilder took 335.55ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 72.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:34:50,913 INFO L158 Benchmark]: TraceAbstraction took 794.98ms. Allocated memory is still 107.0MB. Free memory was 71.9MB in the beginning and 82.3MB in the end (delta: -10.4MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2021-11-13 18:34:50,914 INFO L158 Benchmark]: Witness Printer took 84.20ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 82.2MB in the beginning and 112.4MB in the end (delta: -30.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2021-11-13 18:34:50,917 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.43ms. Allocated memory is still 107.0MB. Free memory was 67.7MB in the beginning and 83.2MB in the end (delta: -15.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.51ms. Allocated memory is still 107.0MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.65ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 81.1MB in the end (delta: 848.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.55ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 72.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 794.98ms. Allocated memory is still 107.0MB. Free memory was 71.9MB in the beginning and 82.3MB in the end (delta: -10.4MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Witness Printer took 84.20ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 82.2MB in the beginning and 112.4MB in the end (delta: -30.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 47.56ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 38.57ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 26 mSDtfsCounter, 30 mSolverCounterSat, 1.99ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-13 18:34:50,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65020836-8578-425b-bcd4-a4759fbfcf5a/bin/uautomizer-YU5uOKAj3y/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