./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et4_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_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/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_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et4_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/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_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/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 fd425c4b2002ad50235bdf7942d03f600c35812ae9d16cfe392f9b6ae03e09d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:23:19,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:23:19,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:23:19,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:23:19,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:23:19,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:23:19,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:23:19,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:23:19,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:23:19,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:23:19,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:23:19,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:23:19,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:23:19,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:23:19,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:23:19,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:23:19,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:23:19,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:23:19,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:23:19,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:23:19,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:23:19,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:23:19,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:23:19,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:23:19,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:23:19,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:23:19,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:23:19,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:23:19,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:23:19,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:23:19,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:23:19,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:23:19,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:23:19,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:23:19,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:23:19,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:23:19,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:23:19,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:23:19,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:23:19,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:23:19,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:23:19,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-12 22:23:19,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:23:19,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:23:19,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:23:19,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:23:19,461 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:23:19,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:23:19,461 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:23:19,461 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:23:19,462 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:23:19,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:23:19,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:23:19,462 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:23:19,463 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:23:19,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:23:19,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:23:19,463 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:23:19,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:23:19,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:23:19,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:23:19,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:23:19,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:23:19,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:23:19,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:23:19,466 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-12 22:23:19,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:23:19,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:23:19,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:23:19,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:23:19,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:23:19,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:23:19,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:23:19,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:23:19,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:23:19,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:23:19,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:23:19,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:23:19,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:23:19,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:23:19,470 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_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd425c4b2002ad50235bdf7942d03f600c35812ae9d16cfe392f9b6ae03e09d0 [2021-11-12 22:23:19,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:23:19,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:23:19,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:23:19,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:23:19,811 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:23:19,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/termination-numeric/Et4_true.c [2021-11-12 22:23:19,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/data/3eea758e2/62ae0a197c9c48a283190b6e4db1572b/FLAGa5ff089e3 [2021-11-12 22:23:20,402 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:23:20,402 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/sv-benchmarks/c/termination-numeric/Et4_true.c [2021-11-12 22:23:20,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/data/3eea758e2/62ae0a197c9c48a283190b6e4db1572b/FLAGa5ff089e3 [2021-11-12 22:23:20,776 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/data/3eea758e2/62ae0a197c9c48a283190b6e4db1572b [2021-11-12 22:23:20,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:23:20,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:23:20,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:23:20,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:23:20,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:23:20,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:23:20" (1/1) ... [2021-11-12 22:23:20,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b6ce86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:20, skipping insertion in model container [2021-11-12 22:23:20,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:23:20" (1/1) ... [2021-11-12 22:23:20,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:23:20,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:23:20,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:23:21,001 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:23:21,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:23:21,026 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:23:21,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21 WrapperNode [2021-11-12 22:23:21,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:23:21,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:23:21,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:23:21,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:23:21,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:23:21,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:23:21,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:23:21,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:23:21,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:23:21,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:23:21,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:23:21,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:23:21,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (1/1) ... [2021-11-12 22:23:21,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:23:21,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:23:21,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:23:21,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:23:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-12 22:23:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2021-11-12 22:23:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2021-11-12 22:23:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2021-11-12 22:23:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:23:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:23:21,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:23:21,398 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:23:21,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:23:21 BoogieIcfgContainer [2021-11-12 22:23:21,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:23:21,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:23:21,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:23:21,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:23:21,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:23:20" (1/3) ... [2021-11-12 22:23:21,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593ffaa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:23:21, skipping insertion in model container [2021-11-12 22:23:21,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:21" (2/3) ... [2021-11-12 22:23:21,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593ffaa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:23:21, skipping insertion in model container [2021-11-12 22:23:21,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:23:21" (3/3) ... [2021-11-12 22:23:21,429 INFO L111 eAbstractionObserver]: Analyzing ICFG Et4_true.c [2021-11-12 22:23:21,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:23:21,439 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-12 22:23:21,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:23:21,530 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 22:23:21,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-12 22:23:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.5) internal successors, (30), 29 states have internal predecessors, (30), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-12 22:23:21,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:23:21,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:21,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:23:21,555 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-12 22:23:21,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:21,563 INFO L85 PathProgramCache]: Analyzing trace with hash 84636328, now seen corresponding path program 1 times [2021-11-12 22:23:21,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:21,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853912087] [2021-11-12 22:23:21,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:21,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:23:21,668 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:23:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:23:21,695 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 22:23:21,697 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:23:21,698 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2021-11-12 22:23:21,700 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2021-11-12 22:23:21,700 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2021-11-12 22:23:21,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2021-11-12 22:23:21,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2021-11-12 22:23:21,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2021-11-12 22:23:21,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2021-11-12 22:23:21,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2021-11-12 22:23:21,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:23:21,707 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-12 22:23:21,711 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:23:21,723 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 22:23:21,727 INFO L158 Benchmark]: Toolchain (without parser) took 945.73ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.5MB in the beginning and 62.9MB in the end (delta: -3.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-12 22:23:21,728 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:23:21,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.42ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.1MB in the beginning and 87.7MB in the end (delta: -28.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:23:21,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.60ms. Allocated memory is still 111.1MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:23:21,730 INFO L158 Benchmark]: Boogie Preprocessor took 37.92ms. Allocated memory is still 111.1MB. Free memory was 86.5MB in the beginning and 85.6MB in the end (delta: 932.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:23:21,731 INFO L158 Benchmark]: RCFGBuilder took 301.03ms. Allocated memory is still 111.1MB. Free memory was 85.6MB in the beginning and 75.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:23:21,731 INFO L158 Benchmark]: TraceAbstraction took 322.25ms. Allocated memory is still 111.1MB. Free memory was 75.1MB in the beginning and 62.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:23:21,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.42ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.1MB in the beginning and 87.7MB in the end (delta: -28.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.60ms. Allocated memory is still 111.1MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.92ms. Allocated memory is still 111.1MB. Free memory was 86.5MB in the beginning and 85.6MB in the end (delta: 932.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.03ms. Allocated memory is still 111.1MB. Free memory was 85.6MB in the beginning and 75.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 322.25ms. Allocated memory is still 111.1MB. Free memory was 75.1MB in the beginning and 62.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. 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 22:23:21,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/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_c5b7fa3e-652f-4e5b-8141-8efc55104bb2/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