./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et3_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et3_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 350bcba9492528817ac8a0cf6c60305675b82628002dcb9cf778962d99ace2e1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:23:59,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:23:59,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:23:59,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:23:59,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:23:59,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:23:59,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:23:59,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:23:59,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:23:59,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:23:59,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:23:59,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:23:59,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:23:59,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:23:59,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:23:59,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:23:59,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:23:59,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:23:59,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:23:59,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:23:59,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:23:59,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:23:59,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:23:59,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:23:59,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:23:59,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:23:59,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:23:59,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:23:59,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:23:59,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:23:59,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:23:59,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:23:59,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:23:59,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:23:59,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:23:59,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:23:59,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:23:59,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:23:59,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:23:59,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:23:59,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:23:59,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-12 22:23:59,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:23:59,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:23:59,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:23:59,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:23:59,456 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:23:59,457 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:23:59,457 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:23:59,458 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:23:59,458 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:23:59,458 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:23:59,459 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:23:59,459 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:23:59,460 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:23:59,460 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:23:59,461 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:23:59,462 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:23:59,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:23:59,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:23:59,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:23:59,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:23:59,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:23:59,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:23:59,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:23:59,469 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-12 22:23:59,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:23:59,469 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:23:59,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:23:59,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:23:59,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:23:59,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:23:59,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:23:59,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:23:59,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:23:59,473 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:23:59,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:23:59,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:23:59,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:23:59,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:23:59,475 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 350bcba9492528817ac8a0cf6c60305675b82628002dcb9cf778962d99ace2e1 [2021-11-12 22:23:59,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:23:59,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:23:59,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:23:59,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:23:59,817 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:23:59,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/termination-numeric/Et3_true.c [2021-11-12 22:23:59,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/data/7b91304f2/febb0d9e690343b790775328bd47c9f9/FLAG516be48e8 [2021-11-12 22:24:00,455 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:24:00,455 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/sv-benchmarks/c/termination-numeric/Et3_true.c [2021-11-12 22:24:00,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/data/7b91304f2/febb0d9e690343b790775328bd47c9f9/FLAG516be48e8 [2021-11-12 22:24:00,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/data/7b91304f2/febb0d9e690343b790775328bd47c9f9 [2021-11-12 22:24:00,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:24:00,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:24:00,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:24:00,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:24:00,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:24:00,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:24:00" (1/1) ... [2021-11-12 22:24:00,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d72d9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:00, skipping insertion in model container [2021-11-12 22:24:00,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:24:00" (1/1) ... [2021-11-12 22:24:00,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:24:00,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:24:01,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:24:01,031 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:24:01,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:24:01,057 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:24:01,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01 WrapperNode [2021-11-12 22:24:01,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:24:01,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:24:01,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:24:01,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:24:01,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:24:01,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:24:01,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:24:01,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:24:01,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:24:01,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:24:01,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:24:01,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:24:01,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (1/1) ... [2021-11-12 22:24:01,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:24:01,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:24:01,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:24:01,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:24:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-12 22:24:01,216 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2021-11-12 22:24:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2021-11-12 22:24:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2021-11-12 22:24:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:24:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:24:01,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:24:01,446 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:24:01,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:01 BoogieIcfgContainer [2021-11-12 22:24:01,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:24:01,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:24:01,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:24:01,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:24:01,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:24:00" (1/3) ... [2021-11-12 22:24:01,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348f03f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:01, skipping insertion in model container [2021-11-12 22:24:01,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:01" (2/3) ... [2021-11-12 22:24:01,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348f03f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:01, skipping insertion in model container [2021-11-12 22:24:01,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:01" (3/3) ... [2021-11-12 22:24:01,457 INFO L111 eAbstractionObserver]: Analyzing ICFG Et3_true.c [2021-11-12 22:24:01,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:24:01,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-12 22:24:01,505 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:24:01,512 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:24:01,513 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-12 22:24:01,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.5) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:24:01,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:24:01,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:01,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:24:01,535 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-12 22:24:01,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:01,540 INFO L85 PathProgramCache]: Analyzing trace with hash 74179687, now seen corresponding path program 1 times [2021-11-12 22:24:01,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:01,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684940505] [2021-11-12 22:24:01,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:01,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:24:01,634 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:24:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:24:01,657 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 22:24:01,659 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:24:01,660 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-11-12 22:24:01,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-11-12 22:24:01,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-11-12 22:24:01,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-11-12 22:24:01,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-11-12 22:24:01,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-11-12 22:24:01,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:24:01,669 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-12 22:24:01,673 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:24:01,679 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 22:24:01,681 INFO L158 Benchmark]: Toolchain (without parser) took 840.45ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 86.6MB in the beginning and 94.0MB in the end (delta: -7.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-12 22:24:01,682 INFO L158 Benchmark]: CDTParser took 1.09ms. Allocated memory is still 115.3MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:24:01,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.12ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 86.6MB in the beginning and 118.1MB in the end (delta: -31.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:24:01,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.61ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 117.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:24:01,684 INFO L158 Benchmark]: Boogie Preprocessor took 24.47ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 116.1MB in the end (delta: 456.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:24:01,685 INFO L158 Benchmark]: RCFGBuilder took 331.49ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 106.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:24:01,685 INFO L158 Benchmark]: TraceAbstraction took 229.21ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 94.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:24:01,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09ms. Allocated memory is still 115.3MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.12ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 86.6MB in the beginning and 118.1MB in the end (delta: -31.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.61ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 117.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.47ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 116.1MB in the end (delta: 456.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 331.49ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 106.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 229.21ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 94.0MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:24:01,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e627010-12e9-42ce-bb42-4d4da9851751/bin/utaipan-vmNK8stdcF/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null