./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.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_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/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_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/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_1f60d3b4-e2a6-4db2-9176-19e664e9de72/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 296e9988b55edbc54108eff44b47c089045df177e779a079877f1dfcae166da5 --- 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 02:34:08,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:34:08,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:34:08,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:34:08,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:34:08,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:34:08,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:34:08,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:34:08,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:34:08,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:34:08,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:34:08,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:34:08,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:34:08,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:34:08,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:34:08,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:34:08,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:34:08,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:34:08,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:34:08,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:34:08,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:34:08,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:34:08,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:34:08,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:34:08,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:34:08,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:34:08,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:34:08,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:34:08,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:34:08,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:34:08,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:34:08,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:34:08,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:34:08,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:34:08,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:34:08,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:34:08,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:34:08,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:34:08,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:34:08,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:34:08,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:34:08,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 02:34:08,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:34:08,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:34:08,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:34:08,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:34:08,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:34:08,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:34:08,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:34:08,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:34:08,396 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:34:08,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:34:08,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:34:08,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:34:08,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:34:08,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:34:08,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:34:08,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:34:08,398 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:34:08,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:34:08,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:34:08,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:34:08,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:34:08,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:34:08,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:34:08,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:34:08,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:34:08,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:34:08,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:34:08,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:34:08,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:34:08,401 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:34:08,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:34:08,401 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:34:08,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:34:08,402 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_1f60d3b4-e2a6-4db2-9176-19e664e9de72/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 296e9988b55edbc54108eff44b47c089045df177e779a079877f1dfcae166da5 [2022-11-23 02:34:08,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:34:08,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:34:08,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:34:08,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:34:08,700 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:34:08,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2022-11-23 02:34:11,792 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:34:12,006 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:34:12,007 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2022-11-23 02:34:12,013 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/data/e8c6a7650/882f8e0361a44d358a1202c6389be716/FLAGa2068a70c [2022-11-23 02:34:12,030 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/data/e8c6a7650/882f8e0361a44d358a1202c6389be716 [2022-11-23 02:34:12,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:34:12,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:34:12,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:34:12,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:34:12,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:34:12,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d112f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12, skipping insertion in model container [2022-11-23 02:34:12,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:34:12,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:34:12,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:34:12,249 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:34:12,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:34:12,277 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:34:12,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12 WrapperNode [2022-11-23 02:34:12,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:34:12,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:34:12,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:34:12,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:34:12,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,317 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-11-23 02:34:12,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:34:12,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:34:12,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:34:12,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:34:12,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:34:12,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:34:12,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:34:12,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:34:12,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (1/1) ... [2022-11-23 02:34:12,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:34:12,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:34:12,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:34:12,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:34:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:34:12,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:34:12,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:34:12,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:34:12,696 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:34:12,703 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:34:12,703 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 02:34:12,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:12 BoogieIcfgContainer [2022-11-23 02:34:12,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:34:12,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:34:12,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:34:12,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:34:12,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:34:12" (1/3) ... [2022-11-23 02:34:12,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69de2dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:12, skipping insertion in model container [2022-11-23 02:34:12,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:12" (2/3) ... [2022-11-23 02:34:12,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69de2dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:12, skipping insertion in model container [2022-11-23 02:34:12,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:12" (3/3) ... [2022-11-23 02:34:12,729 INFO L112 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig8.c [2022-11-23 02:34:12,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:34:12,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 02:34:12,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:34:12,804 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;@bb27e22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:34:12,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 02:34:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 02:34:12,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:34:12,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 02:34:12,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 02:34:12,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:12,822 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-23 02:34:12,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:12,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487405128] [2022-11-23 02:34:12,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:12,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:13,081 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 02:34:13,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:13,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487405128] [2022-11-23 02:34:13,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487405128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:13,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:13,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:13,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12438202] [2022-11-23 02:34:13,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:13,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:13,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:13,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:13,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,174 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 02:34:13,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:34:13,206 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-23 02:34:13,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:13,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 02:34:13,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:34:13,234 INFO L225 Difference]: With dead ends: 28 [2022-11-23 02:34:13,237 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 02:34:13,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,245 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:34:13,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 22 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:34:13,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 02:34:13,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 02:34:13,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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 02:34:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-23 02:34:13,282 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 4 [2022-11-23 02:34:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:34:13,283 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-23 02:34:13,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 02:34:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-23 02:34:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 02:34:13,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:34:13,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:34:13,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:34:13,287 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 02:34:13,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:13,289 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-23 02:34:13,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:13,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791669726] [2022-11-23 02:34:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:13,366 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 02:34:13,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:13,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791669726] [2022-11-23 02:34:13,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791669726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:13,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:13,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:13,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361870743] [2022-11-23 02:34:13,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:13,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:13,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:13,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:13,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,370 INFO L87 Difference]: Start difference. First operand 19 states and 20 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) [2022-11-23 02:34:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:34:13,387 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-23 02:34:13,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:13,388 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 [2022-11-23 02:34:13,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:34:13,388 INFO L225 Difference]: With dead ends: 23 [2022-11-23 02:34:13,388 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 02:34:13,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,390 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:34:13,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:34:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 02:34:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-23 02:34:13,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-23 02:34:13,395 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 5 [2022-11-23 02:34:13,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:34:13,396 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-23 02:34:13,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,396 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-23 02:34:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 02:34:13,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:34:13,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:34:13,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:34:13,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 02:34:13,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:13,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629643, now seen corresponding path program 1 times [2022-11-23 02:34:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:13,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700841336] [2022-11-23 02:34:13,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:13,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:13,467 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 02:34:13,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:13,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700841336] [2022-11-23 02:34:13,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700841336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:13,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:13,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:13,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882098780] [2022-11-23 02:34:13,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:13,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:13,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:13,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:13,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,475 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:34:13,497 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-23 02:34:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:13,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 02:34:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:34:13,504 INFO L225 Difference]: With dead ends: 22 [2022-11-23 02:34:13,504 INFO L226 Difference]: Without dead ends: 21 [2022-11-23 02:34:13,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,506 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:34:13,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:34:13,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-23 02:34:13,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-23 02:34:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 20 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 02:34:13,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-23 02:34:13,511 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2022-11-23 02:34:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:34:13,511 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-23 02:34:13,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,512 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-23 02:34:13,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 02:34:13,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:34:13,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:34:13,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:34:13,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 02:34:13,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:13,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629963, now seen corresponding path program 1 times [2022-11-23 02:34:13,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:13,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942905532] [2022-11-23 02:34:13,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:13,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:13,572 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 02:34:13,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:13,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942905532] [2022-11-23 02:34:13,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942905532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:13,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:13,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:13,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638130513] [2022-11-23 02:34:13,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:13,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:13,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:13,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,575 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:34:13,585 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-23 02:34:13,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:13,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 02:34:13,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:34:13,586 INFO L225 Difference]: With dead ends: 21 [2022-11-23 02:34:13,586 INFO L226 Difference]: Without dead ends: 20 [2022-11-23 02:34:13,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,588 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:34:13,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 15 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:34:13,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-23 02:34:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-23 02:34:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-23 02:34:13,593 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 7 [2022-11-23 02:34:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:34:13,594 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-23 02:34:13,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-23 02:34:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 02:34:13,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:34:13,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:34:13,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:34:13,595 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 02:34:13,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 294944137, now seen corresponding path program 1 times [2022-11-23 02:34:13,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:13,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529449104] [2022-11-23 02:34:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:13,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:34:13,627 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 02:34:13,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:34:13,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529449104] [2022-11-23 02:34:13,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529449104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:34:13,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:34:13,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:34:13,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253968719] [2022-11-23 02:34:13,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:34:13,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:34:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:34:13,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:34:13,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,630 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:34:13,645 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-23 02:34:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:34:13,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 02:34:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:34:13,647 INFO L225 Difference]: With dead ends: 20 [2022-11-23 02:34:13,647 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 02:34:13,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:34:13,648 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:34:13,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:34:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 02:34:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 02:34:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 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 02:34:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-23 02:34:13,653 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 8 [2022-11-23 02:34:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:34:13,654 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-23 02:34:13,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:34:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-23 02:34:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 02:34:13,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:34:13,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:34:13,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:34:13,655 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 02:34:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:34:13,656 INFO L85 PathProgramCache]: Analyzing trace with hash 294954067, now seen corresponding path program 1 times [2022-11-23 02:34:13,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:34:13,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893233800] [2022-11-23 02:34:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:34:13,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:34:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:34:13,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:34:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:34:13,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:34:13,687 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:34:13,688 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-23 02:34:13,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-23 02:34:13,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-23 02:34:13,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-23 02:34:13,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-23 02:34:13,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-23 02:34:13,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-23 02:34:13,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-23 02:34:13,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 02:34:13,696 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-23 02:34:13,701 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:34:13,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:34:13 BoogieIcfgContainer [2022-11-23 02:34:13,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:34:13,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:34:13,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:34:13,722 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:34:13,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:12" (3/4) ... [2022-11-23 02:34:13,724 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 02:34:13,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:34:13,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:34:13,758 INFO L158 Benchmark]: Toolchain (without parser) took 1719.71ms. Allocated memory is still 161.5MB. Free memory was 120.1MB in the beginning and 101.3MB in the end (delta: 18.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-11-23 02:34:13,758 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:34:13,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.22ms. Allocated memory is still 161.5MB. Free memory was 120.1MB in the beginning and 110.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 02:34:13,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.28ms. Allocated memory is still 161.5MB. Free memory was 110.8MB in the beginning and 109.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:34:13,759 INFO L158 Benchmark]: Boogie Preprocessor took 35.43ms. Allocated memory is still 161.5MB. Free memory was 109.3MB in the beginning and 108.4MB in the end (delta: 920.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:34:13,760 INFO L158 Benchmark]: RCFGBuilder took 364.08ms. Allocated memory is still 161.5MB. Free memory was 108.4MB in the beginning and 98.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:34:13,760 INFO L158 Benchmark]: TraceAbstraction took 1000.40ms. Allocated memory is still 161.5MB. Free memory was 97.9MB in the beginning and 103.4MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:34:13,761 INFO L158 Benchmark]: Witness Printer took 35.63ms. Allocated memory is still 161.5MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:34:13,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.22ms. Allocated memory is still 161.5MB. Free memory was 120.1MB in the beginning and 110.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.28ms. Allocated memory is still 161.5MB. Free memory was 110.8MB in the beginning and 109.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.43ms. Allocated memory is still 161.5MB. Free memory was 109.3MB in the beginning and 108.4MB in the end (delta: 920.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.08ms. Allocated memory is still 161.5MB. Free memory was 108.4MB in the beginning and 98.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1000.40ms. Allocated memory is still 161.5MB. Free memory was 97.9MB in the beginning and 103.4MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.63ms. Allocated memory is still 161.5MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, u, v, w, x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] u = x [L20] v = y [L21] w = z [L22] c = 0 VAL [c=0, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L23] COND TRUE x >= y VAL [c=0, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L24] EXPR c + 1 [L24] c = c + 1 VAL [c=1, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L25] COND FALSE !(z > 1) VAL [c=1, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L29] y + 1 VAL [c=1, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 29]: 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, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 78 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 02:34:13,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f60d3b4-e2a6-4db2-9176-19e664e9de72/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)