./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron12.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_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/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_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/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_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/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 e7c99ab38d354b3f2afc47239c7a77d3ac35fc2b ................................................................................................................................................................................................................................. 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 00:23:15,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:15,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:15,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:15,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:15,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:15,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:15,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:15,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:15,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:15,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:15,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:15,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:15,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:15,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:15,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:15,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:15,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:15,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:15,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:15,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:15,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:15,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:15,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:15,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:15,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:15,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:15,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:15,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:15,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:15,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:15,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:15,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:15,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:15,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:15,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:15,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:15,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:15,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:15,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:15,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:15,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:23:15,286 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:15,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:15,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:15,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:15,289 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:15,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:15,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:23:15,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:15,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:15,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:23:15,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:15,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:23:15,298 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:23:15,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:15,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:15,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:23:15,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:15,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:15,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:15,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:15,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:15,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:15,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:23:15,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:15,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:23:15,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:23:15,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:15,300 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_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7c99ab38d354b3f2afc47239c7a77d3ac35fc2b [2021-10-11 00:23:15,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:15,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:15,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:15,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:15,575 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:15,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron12.c [2021-10-11 00:23:15,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/data/fd9615314/d6a548f376c943e68c1db9ec91b71a51/FLAG42526d844 [2021-10-11 00:23:16,097 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:16,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron12.c [2021-10-11 00:23:16,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/data/fd9615314/d6a548f376c943e68c1db9ec91b71a51/FLAG42526d844 [2021-10-11 00:23:16,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/data/fd9615314/d6a548f376c943e68c1db9ec91b71a51 [2021-10-11 00:23:16,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:16,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:16,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:16,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:16,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:16,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7420531a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16, skipping insertion in model container [2021-10-11 00:23:16,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:16,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:16,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:16,668 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:16,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:16,696 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:16,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16 WrapperNode [2021-10-11 00:23:16,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:16,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:16,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:16,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:16,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:16,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:16,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:16,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:16,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... [2021-10-11 00:23:16,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:16,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:16,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:16,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:16,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/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 00:23:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:16,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:19,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:19,168 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:23:19,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:19 BoogieIcfgContainer [2021-10-11 00:23:19,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:19,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:19,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:19,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:19,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:16" (1/3) ... [2021-10-11 00:23:19,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5fdbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:19, skipping insertion in model container [2021-10-11 00:23:19,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:16" (2/3) ... [2021-10-11 00:23:19,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5fdbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:19, skipping insertion in model container [2021-10-11 00:23:19,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:19" (3/3) ... [2021-10-11 00:23:19,180 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron12.c [2021-10-11 00:23:19,195 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:19,198 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2021-10-11 00:23:19,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-11 00:23:19,236 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:19,236 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:23:19,237 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:19,237 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:19,237 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:19,237 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:19,237 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:19,238 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2021-10-11 00:23:19,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:23:19,260 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:19,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:23:19,262 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:23:19,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:19,268 INFO L82 PathProgramCache]: Analyzing trace with hash 963659, now seen corresponding path program 1 times [2021-10-11 00:23:19,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:19,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104747593] [2021-10-11 00:23:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:19,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:19,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:19,446 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:19,447 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:23:19,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:23:19,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:23:19 BoogieIcfgContainer [2021-10-11 00:23:19,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:23:19,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:19,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:19,466 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:19,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:19" (3/4) ... [2021-10-11 00:23:19,469 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:23:19,531 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba8b7b8-53c8-4ffc-be13-f2f085b56b07/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:23:19,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:19,537 INFO L168 Benchmark]: Toolchain (without parser) took 3064.56 ms. Allocated memory is still 132.1 MB. Free memory was 103.6 MB in the beginning and 78.6 MB in the end (delta: 24.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,540 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory was 49.3 MB in the beginning and 49.2 MB in the end (delta: 117.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:19,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.60 ms. Allocated memory is still 132.1 MB. Free memory was 103.3 MB in the beginning and 105.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.29 ms. Allocated memory is still 132.1 MB. Free memory was 105.8 MB in the beginning and 104.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:19,545 INFO L168 Benchmark]: Boogie Preprocessor took 18.80 ms. Allocated memory is still 132.1 MB. Free memory was 104.3 MB in the beginning and 103.5 MB in the end (delta: 801.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,546 INFO L168 Benchmark]: RCFGBuilder took 2414.99 ms. Allocated memory is still 132.1 MB. Free memory was 103.5 MB in the beginning and 91.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,548 INFO L168 Benchmark]: TraceAbstraction took 293.21 ms. Allocated memory is still 132.1 MB. Free memory was 91.2 MB in the beginning and 80.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,549 INFO L168 Benchmark]: Witness Printer took 69.00 ms. Allocated memory is still 132.1 MB. Free memory was 80.1 MB in the beginning and 78.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory was 49.3 MB in the beginning and 49.2 MB in the end (delta: 117.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.60 ms. Allocated memory is still 132.1 MB. Free memory was 103.3 MB in the beginning and 105.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.29 ms. Allocated memory is still 132.1 MB. Free memory was 105.8 MB in the beginning and 104.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.80 ms. Allocated memory is still 132.1 MB. Free memory was 104.3 MB in the beginning and 103.5 MB in the end (delta: 801.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2414.99 ms. Allocated memory is still 132.1 MB. Free memory was 103.5 MB in the beginning and 91.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 293.21 ms. Allocated memory is still 132.1 MB. Free memory was 91.2 MB in the beginning and 80.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 69.00 ms. Allocated memory is still 132.1 MB. Free memory was 80.1 MB in the beginning and 78.6 MB in the end (delta: 1.5 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: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, z; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] z = __VERIFIER_nondet_int() [L18] COND TRUE x >= y [L19] COND FALSE !(__VERIFIER_nondet_int() != 0) [L23] x - z - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...