./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.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_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/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_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/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_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/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 0891d25befae8c09e1d39f695095d48836d44a56 ................................................................................................................................................................................................................................ 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 00:21:37,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:37,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:37,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:37,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:37,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:37,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:37,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:38,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:38,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:38,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:38,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:38,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:38,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:38,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:38,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:38,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:38,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:38,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:38,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:38,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:38,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:38,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:38,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:38,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:38,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:38,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:38,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:38,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:38,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:38,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:38,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:38,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:38,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:38,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:38,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:38,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:38,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:38,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:38,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:38,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:38,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:21:38,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:38,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:38,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:38,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:38,098 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:38,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:38,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:21:38,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:38,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:38,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:38,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:38,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:38,105 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:21:38,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:38,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:38,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:38,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:38,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:38,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:38,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:38,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:38,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:38,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:38,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:38,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:21:38,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:38,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:38,109 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_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0891d25befae8c09e1d39f695095d48836d44a56 [2021-10-11 00:21:38,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:38,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:38,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:38,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:38,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:38,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.c [2021-10-11 00:21:38,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/data/1b4c26ee8/59ead92a871e491ab0af172efc505173/FLAGae590ab3f [2021-10-11 00:21:39,018 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:39,019 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.c [2021-10-11 00:21:39,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/data/1b4c26ee8/59ead92a871e491ab0af172efc505173/FLAGae590ab3f [2021-10-11 00:21:39,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/data/1b4c26ee8/59ead92a871e491ab0af172efc505173 [2021-10-11 00:21:39,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:39,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:39,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:39,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:39,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:39,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee65fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39, skipping insertion in model container [2021-10-11 00:21:39,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:39,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:39,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:39,644 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:39,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:39,683 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:39,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39 WrapperNode [2021-10-11 00:21:39,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:39,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:39,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:39,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:39,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:39,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:39,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:39,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:39,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... [2021-10-11 00:21:39,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:39,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:39,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:39,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:39,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/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 00:21:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:40,088 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:40,088 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:21:40,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:40 BoogieIcfgContainer [2021-10-11 00:21:40,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:40,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:40,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:40,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:40,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:39" (1/3) ... [2021-10-11 00:21:40,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2161f738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:40, skipping insertion in model container [2021-10-11 00:21:40,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:39" (2/3) ... [2021-10-11 00:21:40,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2161f738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:40, skipping insertion in model container [2021-10-11 00:21:40,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:40" (3/3) ... [2021-10-11 00:21:40,107 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.02.c [2021-10-11 00:21:40,125 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:40,129 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-10-11 00:21:40,143 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-11 00:21:40,172 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:40,172 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:40,172 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:40,173 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:40,173 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:40,173 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:40,173 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:40,173 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:40,189 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2021-10-11 00:21:40,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 00:21:40,193 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:40,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 00:21:40,195 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:21:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-11 00:21:40,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:40,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527445794] [2021-10-11 00:21:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:40,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:40,310 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:40,325 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:40,326 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:21:40,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:21:40,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:40 BoogieIcfgContainer [2021-10-11 00:21:40,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:40,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:40,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:40,347 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:40,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:40" (3/4) ... [2021-10-11 00:21:40,353 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:21:40,392 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b9f31a1-da17-4baf-bd36-e9c260c92e3b/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:21:40,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:40,394 INFO L168 Benchmark]: Toolchain (without parser) took 1013.73 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 45.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:40,395 INFO L168 Benchmark]: CDTParser took 1.47 ms. Allocated memory is still 92.3 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:40,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.51 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 70.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:40,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.29 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 00:21:40,399 INFO L168 Benchmark]: Boogie Preprocessor took 19.05 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 68.2 MB in the end (delta: 879.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:40,400 INFO L168 Benchmark]: RCFGBuilder took 352.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 58.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:40,401 INFO L168 Benchmark]: TraceAbstraction took 248.08 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 47.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:40,402 INFO L168 Benchmark]: Witness Printer took 45.91 ms. Allocated memory is still 92.3 MB. Free memory was 47.6 MB in the beginning and 45.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:40,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47 ms. Allocated memory is still 92.3 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.51 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 70.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.29 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 19.05 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 68.2 MB in the end (delta: 879.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 352.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 58.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 248.08 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 47.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 45.91 ms. Allocated memory is still 92.3 MB. Free memory was 47.6 MB in the beginning and 45.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, z; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] z = __VERIFIER_nondet_int() [L27] COND TRUE x > 0 [L28] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=14occurred 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, 3 NumberOfCodeBlocks, 3 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...