./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC --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 7660a5e2f9f2a21129eb39e58701014cfc465dc2 .................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:30:43,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:43,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:43,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:43,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:43,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:43,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:43,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:43,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:43,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:43,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:43,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:43,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:43,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:43,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:43,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:43,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:43,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:43,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:43,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:43,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:43,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:43,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:43,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:43,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:43,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:43,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:43,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:43,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:43,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:43,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:43,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:43,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:43,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:43,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:43,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:43,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:43,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:43,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:43,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:43,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:43,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:30:43,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:43,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:43,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:43,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:43,565 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:43,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:43,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:30:43,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:43,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:43,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:30:43,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:30:43,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:30:43,567 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:30:43,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:43,568 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:43,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:30:43,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:43,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:43,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:30:43,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:43,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:43,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:30:43,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:30:43,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:43,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:30:43,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:30:43,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:43,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7660a5e2f9f2a21129eb39e58701014cfc465dc2 [2021-10-11 00:30:43,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:43,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:43,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:43,917 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:43,918 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:43,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-10-11 00:30:44,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/data/d211851ef/9d06d99be6d94fa9b03026d9dc78a0d9/FLAG43497eddc [2021-10-11 00:30:44,471 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:44,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-10-11 00:30:44,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/data/d211851ef/9d06d99be6d94fa9b03026d9dc78a0d9/FLAG43497eddc [2021-10-11 00:30:44,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/data/d211851ef/9d06d99be6d94fa9b03026d9dc78a0d9 [2021-10-11 00:30:44,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:44,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:44,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:44,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:44,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:44,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:44" (1/1) ... [2021-10-11 00:30:44,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adcfd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:44, skipping insertion in model container [2021-10-11 00:30:44,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:44" (1/1) ... [2021-10-11 00:30:44,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:44,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:45,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:45,109 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:45,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:45,142 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:45,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45 WrapperNode [2021-10-11 00:30:45,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:45,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:45,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:45,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:45,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:45,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:45,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:45,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:45,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... [2021-10-11 00:30:45,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:45,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:45,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:45,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:45,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:45,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:45,462 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:30:45,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:45 BoogieIcfgContainer [2021-10-11 00:30:45,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:45,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:30:45,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:30:45,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:30:45,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:30:44" (1/3) ... [2021-10-11 00:30:45,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bbcb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:45, skipping insertion in model container [2021-10-11 00:30:45,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (2/3) ... [2021-10-11 00:30:45,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bbcb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:45, skipping insertion in model container [2021-10-11 00:30:45,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:45" (3/3) ... [2021-10-11 00:30:45,491 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2021-10-11 00:30:45,513 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:30:45,516 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 00:30:45,530 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 00:30:45,567 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:30:45,568 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:30:45,568 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:30:45,568 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:45,568 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:45,568 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:30:45,568 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:45,568 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:30:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-10-11 00:30:45,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 00:30:45,591 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:45,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 00:30:45,592 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:30:45,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:45,599 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-11 00:30:45,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:45,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141168916] [2021-10-11 00:30:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:45,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:45,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:45,768 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:45,768 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:30:45,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:30:45,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:45 BoogieIcfgContainer [2021-10-11 00:30:45,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:30:45,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:45,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:45,793 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:45,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:45" (3/4) ... [2021-10-11 00:30:45,796 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:30:45,858 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c92cb175-adfa-4b84-ba8e-0c4f497e76eb/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:45,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:45,860 INFO L168 Benchmark]: Toolchain (without parser) took 996.43 ms. Allocated memory is still 96.5 MB. Free memory was 69.6 MB in the beginning and 49.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:45,861 INFO L168 Benchmark]: CDTParser took 1.98 ms. Allocated memory is still 96.5 MB. Free memory was 57.2 MB in the beginning and 57.1 MB in the end (delta: 41.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:45,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.70 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 75.8 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:45,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.47 ms. Allocated memory is still 96.5 MB. Free memory was 75.8 MB in the beginning and 74.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:45,863 INFO L168 Benchmark]: Boogie Preprocessor took 18.07 ms. Allocated memory is still 96.5 MB. Free memory was 74.4 MB in the beginning and 73.7 MB in the end (delta: 757.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:45,864 INFO L168 Benchmark]: RCFGBuilder took 270.96 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 63.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:45,865 INFO L168 Benchmark]: TraceAbstraction took 326.23 ms. Allocated memory is still 96.5 MB. Free memory was 63.0 MB in the beginning and 51.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:45,866 INFO L168 Benchmark]: Witness Printer took 66.14 ms. Allocated memory is still 96.5 MB. Free memory was 51.4 MB in the beginning and 49.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:45,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.98 ms. Allocated memory is still 96.5 MB. Free memory was 57.2 MB in the beginning and 57.1 MB in the end (delta: 41.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.70 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 75.8 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.47 ms. Allocated memory is still 96.5 MB. Free memory was 75.8 MB in the beginning and 74.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.07 ms. Allocated memory is still 96.5 MB. Free memory was 74.4 MB in the beginning and 73.7 MB in the end (delta: 757.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 270.96 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 63.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 326.23 ms. Allocated memory is still 96.5 MB. Free memory was 63.0 MB in the beginning and 51.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 66.14 ms. Allocated memory is still 96.5 MB. Free memory was 51.4 MB in the beginning and 49.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a, b, c, i, j, M, N; [L16] i = __VERIFIER_nondet_int() [L17] j = __VERIFIER_nondet_int() [L18] M = __VERIFIER_nondet_int() [L19] N = __VERIFIER_nondet_int() [L20] a = i [L21] b = j [L22] c = 0 [L23] COND TRUE i