./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et1_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et1_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN --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 12a23acd81bac6be96fab6b12e781f8cdea13b9704294dc24053fce5ee3c8327 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:48:09,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:48:09,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:48:09,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:48:09,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:48:09,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:48:09,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:48:09,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:48:09,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:48:09,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:48:09,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:48:09,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:48:09,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:48:09,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:48:09,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:48:09,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:48:09,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:48:09,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:48:09,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:48:09,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:48:09,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:48:09,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:48:09,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:48:09,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:48:09,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:48:09,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:48:09,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:48:09,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:48:09,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:48:09,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:48:09,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:48:09,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:48:09,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:48:09,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:48:09,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:48:09,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:48:09,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:48:09,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:48:09,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:48:09,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:48:09,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:48:09,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 11:48:09,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:48:09,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:48:09,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:48:09,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:48:09,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:48:09,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:48:09,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:48:09,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:48:09,518 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:48:09,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:48:09,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:48:09,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:48:09,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:48:09,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:48:09,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:48:09,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:48:09,520 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:48:09,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:48:09,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:48:09,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:48:09,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:48:09,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:48:09,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:48:09,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:48:09,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:48:09,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:48:09,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:48:09,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:48:09,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:48:09,522 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:48:09,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:48:09,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:48:09,523 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_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12a23acd81bac6be96fab6b12e781f8cdea13b9704294dc24053fce5ee3c8327 [2022-11-20 11:48:09,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:48:09,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:48:09,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:48:09,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:48:09,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:48:09,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-numeric/Et1_true.c [2022-11-20 11:48:12,919 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:48:13,142 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:48:13,143 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/sv-benchmarks/c/termination-numeric/Et1_true.c [2022-11-20 11:48:13,150 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/data/e7125b888/ce17da0c68e44f18b6fec72af7d73f0a/FLAG9d7e650d6 [2022-11-20 11:48:13,166 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/data/e7125b888/ce17da0c68e44f18b6fec72af7d73f0a [2022-11-20 11:48:13,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:48:13,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:48:13,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:48:13,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:48:13,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:48:13,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7663b740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13, skipping insertion in model container [2022-11-20 11:48:13,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:48:13,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:48:13,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:48:13,409 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:48:13,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:48:13,436 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:48:13,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13 WrapperNode [2022-11-20 11:48:13,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:48:13,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:48:13,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:48:13,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:48:13,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,467 INFO L138 Inliner]: procedures = 6, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-20 11:48:13,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:48:13,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:48:13,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:48:13,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:48:13,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:48:13,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:48:13,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:48:13,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:48:13,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (1/1) ... [2022-11-20 11:48:13,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:48:13,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:48:13,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:48:13,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:48:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure random [2022-11-20 11:48:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2022-11-20 11:48:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2022-11-20 11:48:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2022-11-20 11:48:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:48:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:48:13,623 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:48:13,625 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:48:13,839 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:48:13,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:48:13,863 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:48:13,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:48:13 BoogieIcfgContainer [2022-11-20 11:48:13,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:48:13,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:48:13,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:48:13,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:48:13,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:48:13" (1/3) ... [2022-11-20 11:48:13,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b7a685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:48:13, skipping insertion in model container [2022-11-20 11:48:13,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:13" (2/3) ... [2022-11-20 11:48:13,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b7a685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:48:13, skipping insertion in model container [2022-11-20 11:48:13,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:48:13" (3/3) ... [2022-11-20 11:48:13,890 INFO L112 eAbstractionObserver]: Analyzing ICFG Et1_true.c [2022-11-20 11:48:13,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:48:13,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-20 11:48:13,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:48:13,978 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d2ee83f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:48:13,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-20 11:48:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 34 states have internal predecessors, (35), 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) [2022-11-20 11:48:13,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:48:13,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:13,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:48:13,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 11:48:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1688732723, now seen corresponding path program 1 times [2022-11-20 11:48:14,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:14,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76981110] [2022-11-20 11:48:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:14,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:48:14,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:48:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:48:14,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:48:14,140 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:48:14,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-20 11:48:14,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-20 11:48:14,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-20 11:48:14,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-20 11:48:14,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-20 11:48:14,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-20 11:48:14,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-20 11:48:14,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-20 11:48:14,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-20 11:48:14,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-20 11:48:14,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:48:14,155 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:48:14,161 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:48:14,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:48:14 BoogieIcfgContainer [2022-11-20 11:48:14,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:48:14,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:48:14,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:48:14,180 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:48:14,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:48:13" (3/4) ... [2022-11-20 11:48:14,184 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 11:48:14,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:48:14,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:48:14,221 INFO L158 Benchmark]: Toolchain (without parser) took 1050.09ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 83.1MB in the end (delta: 28.2MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-11-20 11:48:14,221 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:48:14,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.76ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 111.7MB in the end (delta: -490.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:48:14,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.36ms. Allocated memory is still 144.7MB. Free memory was 111.7MB in the beginning and 110.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:48:14,223 INFO L158 Benchmark]: Boogie Preprocessor took 15.36ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 109.4MB in the end (delta: 975.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:48:14,224 INFO L158 Benchmark]: RCFGBuilder took 380.74ms. Allocated memory is still 144.7MB. Free memory was 109.4MB in the beginning and 98.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:48:14,225 INFO L158 Benchmark]: TraceAbstraction took 310.79ms. Allocated memory is still 144.7MB. Free memory was 98.3MB in the beginning and 84.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:48:14,225 INFO L158 Benchmark]: Witness Printer took 39.73ms. Allocated memory is still 144.7MB. Free memory was 84.5MB in the beginning and 83.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:48:14,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.76ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 111.7MB in the end (delta: -490.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.36ms. Allocated memory is still 144.7MB. Free memory was 111.7MB in the beginning and 110.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.36ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 109.4MB in the end (delta: 975.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.74ms. Allocated memory is still 144.7MB. Free memory was 109.4MB in the beginning and 98.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 310.79ms. Allocated memory is still 144.7MB. Free memory was 98.3MB in the beginning and 84.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 39.73ms. Allocated memory is still 144.7MB. Free memory was 84.5MB in the beginning and 83.1MB in the end (delta: 1.4MB). There was no memory consumed. 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 - CounterExampleResult [Line: 31]: integer overflow possible integer overflow possible We found a FailurePath: [L21] int x = __VERIFIER_nondet_int(); [L22] int y = __VERIFIER_nondet_int(); [L23] int z = __VERIFIER_nondet_int(); [L24] CALL random() [L29] int x = __VERIFIER_nondet_int(); [L30] COND TRUE x < 0 VAL [x=-2147483648] [L31] -x VAL [x=-2147483648] - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 40 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 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, 6 NumberOfCodeBlocks, 6 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! [2022-11-20 11:48:14,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f74fb572-b7c6-41a1-a22e-4f10be774853/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)