./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Mysore-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Mysore-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS --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 638781bd69a51ef751cb454a3c2ea01d5ddfa7e74d0b5b05ad4d93f1e02b3c42 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:15:18,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:15:18,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:15:18,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:15:18,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:15:18,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:15:18,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:15:18,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:15:18,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:15:18,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:15:18,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:15:18,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:15:18,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:15:18,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:15:18,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:15:18,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:15:18,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:15:18,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:15:18,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:15:18,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:15:18,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:15:18,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:15:18,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:15:18,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:15:18,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:15:18,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:15:18,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:15:18,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:15:18,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:15:18,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:15:18,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:15:18,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:15:18,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:15:18,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:15:18,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:15:18,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:15:18,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:15:18,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:15:18,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:15:18,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:15:18,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:15:18,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:15:18,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:15:18,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:15:18,275 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:15:18,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:15:18,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:15:18,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:15:18,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:15:18,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:15:18,278 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:15:18,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:15:18,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:15:18,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:15:18,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:15:18,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:15:18,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:15:18,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:15:18,280 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:15:18,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:15:18,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:15:18,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:15:18,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:15:18,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:15:18,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:15:18,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:15:18,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:15:18,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:15:18,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:15:18,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:15:18,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:15:18,283 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:15:18,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:15:18,283 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:15:18,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:15:18,283 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 638781bd69a51ef751cb454a3c2ea01d5ddfa7e74d0b5b05ad4d93f1e02b3c42 [2022-11-23 03:15:18,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:15:18,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:15:18,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:15:18,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:15:18,698 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:15:18,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-crafted/Mysore-1.c [2022-11-23 03:15:22,415 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:15:22,724 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:15:22,725 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/sv-benchmarks/c/termination-crafted/Mysore-1.c [2022-11-23 03:15:22,730 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/data/95d1d88b7/b284aa1199ba4894804f26dfc3ea9d5b/FLAGcf50e68fe [2022-11-23 03:15:22,746 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/data/95d1d88b7/b284aa1199ba4894804f26dfc3ea9d5b [2022-11-23 03:15:22,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:15:22,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:15:22,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:15:22,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:15:22,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:15:22,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:22,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc03c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22, skipping insertion in model container [2022-11-23 03:15:22,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:22,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:15:22,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:15:22,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:15:22,945 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:15:22,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:15:22,979 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:15:22,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22 WrapperNode [2022-11-23 03:15:22,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:15:22,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:15:22,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:15:22,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:15:22,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:22,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,018 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-11-23 03:15:23,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:15:23,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:15:23,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:15:23,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:15:23,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,040 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:15:23,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:15:23,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:15:23,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:15:23,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (1/1) ... [2022-11-23 03:15:23,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:15:23,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:15:23,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:15:23,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:15:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:15:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:15:23,216 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:15:23,218 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:15:23,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:15:23,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:15:23,326 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:15:23,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:23 BoogieIcfgContainer [2022-11-23 03:15:23,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:15:23,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:15:23,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:15:23,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:15:23,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:15:22" (1/3) ... [2022-11-23 03:15:23,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f154d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:15:23, skipping insertion in model container [2022-11-23 03:15:23,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:22" (2/3) ... [2022-11-23 03:15:23,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f154d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:15:23, skipping insertion in model container [2022-11-23 03:15:23,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:23" (3/3) ... [2022-11-23 03:15:23,341 INFO L112 eAbstractionObserver]: Analyzing ICFG Mysore-1.c [2022-11-23 03:15:23,363 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:15:23,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 03:15:23,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:15:23,437 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39b7f180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:15:23,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 03:15:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:15:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 03:15:23,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:15:23,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 03:15:23,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:15:23,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:15:23,460 INFO L85 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2022-11-23 03:15:23,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:15:23,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236219633] [2022-11-23 03:15:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:15:23,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:15:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:15:23,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:15:23,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236219633] [2022-11-23 03:15:23,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236219633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:15:23,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:15:23,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:15:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889547124] [2022-11-23 03:15:23,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:15:23,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:15:23,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:15:23,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:15:23,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:15:23,776 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:15:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:15:23,924 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2022-11-23 03:15:23,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:15:23,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-23 03:15:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:15:23,936 INFO L225 Difference]: With dead ends: 39 [2022-11-23 03:15:23,936 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 03:15:23,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:15:23,943 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 26 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:15:23,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:15:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 03:15:23,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2022-11-23 03:15:23,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 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) [2022-11-23 03:15:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-23 03:15:23,987 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-11-23 03:15:23,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:15:23,988 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-23 03:15:23,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:15:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-23 03:15:23,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:15:23,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:15:23,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:15:23,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:15:23,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:15:24,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:15:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash 28693891, now seen corresponding path program 1 times [2022-11-23 03:15:24,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:15:24,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911260767] [2022-11-23 03:15:24,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:15:24,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:15:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:15:24,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:15:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:15:24,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:15:24,074 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:15:24,076 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-23 03:15:24,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-23 03:15:24,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-23 03:15:24,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-23 03:15:24,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-23 03:15:24,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-23 03:15:24,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:15:24,097 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 03:15:24,102 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:15:24,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:15:24 BoogieIcfgContainer [2022-11-23 03:15:24,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:15:24,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:15:24,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:15:24,134 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:15:24,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:23" (3/4) ... [2022-11-23 03:15:24,136 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 03:15:24,180 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:15:24,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:15:24,181 INFO L158 Benchmark]: Toolchain (without parser) took 1429.67ms. Allocated memory is still 161.5MB. Free memory was 131.8MB in the beginning and 82.4MB in the end (delta: 49.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-23 03:15:24,182 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:15:24,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.16ms. Allocated memory is still 161.5MB. Free memory was 131.2MB in the beginning and 122.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 03:15:24,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.62ms. Allocated memory is still 161.5MB. Free memory was 122.2MB in the beginning and 120.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:15:24,184 INFO L158 Benchmark]: Boogie Preprocessor took 23.36ms. Allocated memory is still 161.5MB. Free memory was 120.7MB in the beginning and 120.1MB in the end (delta: 614.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:15:24,184 INFO L158 Benchmark]: RCFGBuilder took 285.85ms. Allocated memory is still 161.5MB. Free memory was 120.1MB in the beginning and 110.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:15:24,185 INFO L158 Benchmark]: TraceAbstraction took 800.71ms. Allocated memory is still 161.5MB. Free memory was 109.6MB in the beginning and 84.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 03:15:24,186 INFO L158 Benchmark]: Witness Printer took 46.99ms. Allocated memory is still 161.5MB. Free memory was 84.2MB in the beginning and 82.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:15:24,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.16ms. Allocated memory is still 161.5MB. Free memory was 131.2MB in the beginning and 122.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.62ms. Allocated memory is still 161.5MB. Free memory was 122.2MB in the beginning and 120.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.36ms. Allocated memory is still 161.5MB. Free memory was 120.7MB in the beginning and 120.1MB in the end (delta: 614.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.85ms. Allocated memory is still 161.5MB. Free memory was 120.1MB in the beginning and 110.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 800.71ms. Allocated memory is still 161.5MB. Free memory was 109.6MB in the beginning and 84.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 46.99ms. Allocated memory is still 161.5MB. Free memory was 84.2MB in the beginning and 82.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, x; [L16] x = __VERIFIER_nondet_int() [L17] c = __VERIFIER_nondet_int() [L18] COND TRUE c >= 2 VAL [c=2, x=2147483646] [L19] x + c VAL [c=2, x=2147483646] - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-23 03:15:24,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cc3bf9b-912e-48c4-a905-067ae7a4ba57/bin/uautomizer-QkZJyEgLgS/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)