./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.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_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/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_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/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_e187fdec-c78b-4379-b61d-664106e7b39b/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 cf525d8633b3b7346e37d1ca80a1eb5813bdc12a ........................................................................................................................................................................................................................................................................ 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 00:27:16,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:16,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:16,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:16,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:16,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:16,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:16,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:16,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:16,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:16,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:16,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:16,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:16,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:16,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:16,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:16,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:16,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:16,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:16,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:16,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:16,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:16,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:16,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:16,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:16,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:16,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:16,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:16,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:16,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:16,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:16,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:16,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:16,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:16,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:16,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:16,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:16,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:16,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:16,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:16,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:16,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:27:16,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:16,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:16,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:16,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:16,356 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:16,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:16,357 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:27:16,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:27:16,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:16,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:27:16,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:27:16,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:27:16,359 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:27:16,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:16,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:16,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:27:16,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:16,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:16,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:27:16,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:27:16,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:16,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:27:16,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:27:16,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:27:16,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:27:16,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:27:16,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:16,363 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_e187fdec-c78b-4379-b61d-664106e7b39b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf525d8633b3b7346e37d1ca80a1eb5813bdc12a [2021-10-11 00:27:16,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:16,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:16,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:16,698 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:16,699 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:16,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2021-10-11 00:27:16,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/data/d1de299a5/44fd6cb67b7546bdb1be81dbccd4fc72/FLAGe78e37ba1 [2021-10-11 00:27:17,304 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:17,305 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2021-10-11 00:27:17,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/data/d1de299a5/44fd6cb67b7546bdb1be81dbccd4fc72/FLAGe78e37ba1 [2021-10-11 00:27:17,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/data/d1de299a5/44fd6cb67b7546bdb1be81dbccd4fc72 [2021-10-11 00:27:17,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:17,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:17,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:17,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:17,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:17,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b44d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17, skipping insertion in model container [2021-10-11 00:27:17,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:17,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:17,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:17,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:17,933 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:17,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:17,994 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:17,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17 WrapperNode [2021-10-11 00:27:17,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:18,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:18,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:18,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:18,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:18,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:18,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:18,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:18,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... [2021-10-11 00:27:18,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:18,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:18,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:18,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:18,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/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 00:27:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:27:18,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:27:18,381 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:27:18,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:18 BoogieIcfgContainer [2021-10-11 00:27:18,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:27:18,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:27:18,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:27:18,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:27:18,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:17" (1/3) ... [2021-10-11 00:27:18,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc54813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:18, skipping insertion in model container [2021-10-11 00:27:18,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:17" (2/3) ... [2021-10-11 00:27:18,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc54813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:18, skipping insertion in model container [2021-10-11 00:27:18,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:18" (3/3) ... [2021-10-11 00:27:18,394 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2021-10-11 00:27:18,410 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:27:18,414 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 00:27:18,427 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 00:27:18,455 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:27:18,455 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:27:18,456 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:27:18,456 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:27:18,456 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:27:18,456 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:27:18,456 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:27:18,457 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:27:18,474 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-10-11 00:27:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:27:18,480 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:18,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:27:18,481 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 00:27:18,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:18,489 INFO L82 PathProgramCache]: Analyzing trace with hash 963723, now seen corresponding path program 1 times [2021-10-11 00:27:18,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:18,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444098152] [2021-10-11 00:27:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:18,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444098152] [2021-10-11 00:27:18,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:18,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 00:27:18,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303509035] [2021-10-11 00:27:18,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:27:18,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:18,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:27:18,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:18,841 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2021-10-11 00:27:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:18,962 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2021-10-11 00:27:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:27:18,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 00:27:18,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:18,976 INFO L225 Difference]: With dead ends: 41 [2021-10-11 00:27:18,977 INFO L226 Difference]: Without dead ends: 28 [2021-10-11 00:27:18,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-11 00:27:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-10-11 00:27:19,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-11 00:27:19,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2021-10-11 00:27:19,026 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 4 [2021-10-11 00:27:19,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:19,027 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2021-10-11 00:27:19,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:27:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2021-10-11 00:27:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:27:19,028 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:19,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:27:19,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:27:19,030 INFO L429 AbstractCegarLoop]: === Iteration 2 === [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 00:27:19,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:19,031 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-10-11 00:27:19,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:19,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957143045] [2021-10-11 00:27:19,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:19,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:19,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:19,093 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:19,094 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:27:19,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:27:19,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:27:19 BoogieIcfgContainer [2021-10-11 00:27:19,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:27:19,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:27:19,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:27:19,123 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:27:19,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:18" (3/4) ... [2021-10-11 00:27:19,128 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:27:19,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e187fdec-c78b-4379-b61d-664106e7b39b/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:27:19,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:27:19,167 INFO L168 Benchmark]: Toolchain (without parser) took 1489.41 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 60.9 MB in the beginning and 88.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,168 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 47.8 MB in the beginning and 47.8 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:19,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.76 ms. Allocated memory is still 92.3 MB. Free memory was 60.7 MB in the beginning and 70.6 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:19,171 INFO L168 Benchmark]: Boogie Preprocessor took 22.27 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 68.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,172 INFO L168 Benchmark]: RCFGBuilder took 306.98 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 57.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,173 INFO L168 Benchmark]: TraceAbstraction took 735.58 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 57.2 MB in the beginning and 90.9 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:19,174 INFO L168 Benchmark]: Witness Printer took 42.12 ms. Allocated memory is still 123.7 MB. Free memory was 90.9 MB in the beginning and 88.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:19,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 47.8 MB in the beginning and 47.8 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.76 ms. Allocated memory is still 92.3 MB. Free memory was 60.7 MB in the beginning and 70.6 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.27 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 68.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 306.98 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 57.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 735.58 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 57.2 MB in the beginning and 90.9 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 42.12 ms. Allocated memory is still 123.7 MB. Free memory was 90.9 MB in the beginning and 88.9 MB in the end (delta: 2.0 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: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n, b; [L15] n = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 && 0 <= y && y <= n [L20] COND TRUE b == 0 [L21] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 16 SDslu, 13 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...