./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur --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 32bit --witnessprinter.graph.data.programhash 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c --- 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-38b53e6 [2022-11-26 00:03:16,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:16,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:16,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:16,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:16,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:16,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:16,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:16,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:16,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:16,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:16,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:16,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:16,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:16,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:16,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:16,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:16,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:16,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:16,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:16,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:16,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:16,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:16,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:16,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:16,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:16,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:16,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:16,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:16,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:16,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:16,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:16,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:16,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:16,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:16,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:16,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:16,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:16,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:16,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:16,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:16,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:03:16,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:16,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:16,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:16,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:16,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:16,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:16,577 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:16,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:16,578 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:16,578 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:03:16,579 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:16,580 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:16,580 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:03:16,580 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:03:16,580 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:16,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:03:16,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:03:16,581 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:03:16,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:16,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:03:16,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:03:16,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:03:16,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:03:16,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:16,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:16,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:16,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:16,584 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:03:16,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:03:16,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:16,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:16,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:16,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:16,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:16,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:16,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:16,587 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:03:16,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:16,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:16,588 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:03:16,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:03:16,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:16,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:16,589 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_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c [2022-11-26 00:03:16,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:16,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:16,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:16,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:16,942 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:16,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/bitvector/modulus-2.i [2022-11-26 00:03:19,936 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:20,165 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:20,169 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/sv-benchmarks/c/bitvector/modulus-2.i [2022-11-26 00:03:20,176 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data/c7e93e961/8575b4d8e29d4d989806934a694adb42/FLAGed4c097d0 [2022-11-26 00:03:20,199 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data/c7e93e961/8575b4d8e29d4d989806934a694adb42 [2022-11-26 00:03:20,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:20,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:20,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:20,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:20,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:20,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29dbfb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20, skipping insertion in model container [2022-11-26 00:03:20,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:20,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:20,404 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2022-11-26 00:03:20,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:20,427 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:20,441 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2022-11-26 00:03:20,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:20,460 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:20,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20 WrapperNode [2022-11-26 00:03:20,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:20,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:20,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:20,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:20,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,497 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2022-11-26 00:03:20,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:20,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:20,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:20,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:20,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:20,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:20,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:20,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:20,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2022-11-26 00:03:20,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:20,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:20,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:20,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:03:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:03:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:20,674 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:20,676 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:20,831 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:20,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:20,925 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:03:20,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:20 BoogieIcfgContainer [2022-11-26 00:03:20,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:20,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:20,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:20,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:20,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:20" (1/3) ... [2022-11-26 00:03:20,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31576062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:20, skipping insertion in model container [2022-11-26 00:03:20,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (2/3) ... [2022-11-26 00:03:20,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31576062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:20, skipping insertion in model container [2022-11-26 00:03:20,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:20" (3/3) ... [2022-11-26 00:03:20,947 INFO L112 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2022-11-26 00:03:20,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:20,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-26 00:03:21,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:03:21,022 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b8dfc84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:03:21,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-26 00:03:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.8) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:03:21,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:21,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:03:21,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-26 00:03:21,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:21,041 INFO L85 PathProgramCache]: Analyzing trace with hash 3513, now seen corresponding path program 1 times [2022-11-26 00:03:21,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:21,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791847037] [2022-11-26 00:03:21,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:21,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:21,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:21,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:21,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791847037] [2022-11-26 00:03:21,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791847037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:21,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:21,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:03:21,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039971705] [2022-11-26 00:03:21,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:21,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:21,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:21,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:21,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:21,496 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.8) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:21,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:21,550 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2022-11-26 00:03:21,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:21,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-26 00:03:21,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:21,560 INFO L225 Difference]: With dead ends: 16 [2022-11-26 00:03:21,560 INFO L226 Difference]: Without dead ends: 10 [2022-11-26 00:03:21,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:21,566 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:21,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 12 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-26 00:03:21,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-26 00:03:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 6 states have (on average 1.5) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-11-26 00:03:21,592 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 2 [2022-11-26 00:03:21,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:21,592 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-11-26 00:03:21,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-11-26 00:03:21,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:03:21,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:21,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:03:21,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:03:21,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-26 00:03:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash 108946, now seen corresponding path program 1 times [2022-11-26 00:03:21,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:21,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909835586] [2022-11-26 00:03:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:21,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:21,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:03:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:21,655 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:03:21,656 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:03:21,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-11-26 00:03:21,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-11-26 00:03:21,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-11-26 00:03:21,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-11-26 00:03:21,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2022-11-26 00:03:21,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:03:21,671 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:03:21,673 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:03:21,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:21 BoogieIcfgContainer [2022-11-26 00:03:21,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:03:21,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:03:21,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:03:21,688 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:03:21,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:20" (3/4) ... [2022-11-26 00:03:21,692 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:03:21,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:03:21,693 INFO L158 Benchmark]: Toolchain (without parser) took 1489.66ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 86.5MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-26 00:03:21,693 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory was 98.8MB in the beginning and 98.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:21,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.65ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 134.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:03:21,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.95ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 133.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:21,694 INFO L158 Benchmark]: Boogie Preprocessor took 23.78ms. Allocated memory is still 182.5MB. Free memory was 133.3MB in the beginning and 131.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:21,695 INFO L158 Benchmark]: RCFGBuilder took 404.80ms. Allocated memory is still 182.5MB. Free memory was 131.9MB in the beginning and 117.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:03:21,695 INFO L158 Benchmark]: TraceAbstraction took 752.66ms. Allocated memory is still 182.5MB. Free memory was 117.3MB in the beginning and 87.1MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-26 00:03:21,696 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 182.5MB. Free memory was 87.1MB in the beginning and 86.5MB in the end (delta: 659.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:21,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory was 98.8MB in the beginning and 98.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.65ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 134.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.95ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 133.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.78ms. Allocated memory is still 182.5MB. Free memory was 133.3MB in the beginning and 131.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 404.80ms. Allocated memory is still 182.5MB. Free memory was 131.9MB in the beginning and 117.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 752.66ms. Allocated memory is still 182.5MB. Free memory was 117.3MB in the beginning and 87.1MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 182.5MB. Free memory was 87.1MB in the beginning and 86.5MB in the end (delta: 659.7kB). 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 - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 51. Possible FailurePath: [L46] unsigned int n = __VERIFIER_nondet_uint(); [L47] unsigned int s = __VERIFIER_nondet_uint(); [L48] unsigned int d; [L49] unsigned int m; [L50] CALL assume_abort_if_not(s < 31) [L11] COND FALSE !(!cond) [L50] RET assume_abort_if_not(s < 31) [L51] 1 << s VAL [s=30] - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: 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 1 procedures, 16 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:03:21,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/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 Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur --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 32bit --witnessprinter.graph.data.programhash 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c --- 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-38b53e6 [2022-11-26 00:03:24,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:24,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:24,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:24,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:24,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:24,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:24,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:24,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:24,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:24,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:24,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:24,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:24,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:24,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:24,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:24,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:24,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:24,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:24,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:24,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:24,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:24,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:24,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:24,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:24,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:24,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:24,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:24,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:24,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:24,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:24,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:24,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:24,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:24,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:24,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:24,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:24,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:24,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:24,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:24,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:24,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-26 00:03:24,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:24,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:24,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:24,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:24,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:24,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:24,288 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:24,288 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:24,288 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:24,288 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:24,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:24,289 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:24,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:24,290 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:03:24,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:03:24,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:03:24,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:24,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:24,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:24,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:24,291 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:03:24,292 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:03:24,292 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:03:24,292 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:03:24,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:03:24,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:24,293 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:24,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:24,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:24,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:03:24,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:24,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:24,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:24,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:24,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:24,295 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:03:24,295 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:03:24,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:24,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:24,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:03:24,296 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c [2022-11-26 00:03:24,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:24,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:24,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:24,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:24,650 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:24,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/bitvector/modulus-2.i [2022-11-26 00:03:27,748 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:28,023 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:28,025 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/sv-benchmarks/c/bitvector/modulus-2.i [2022-11-26 00:03:28,033 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data/4b3a894e7/c17a63bf591f4863b87039a126aff271/FLAG55389b9a9 [2022-11-26 00:03:28,061 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/data/4b3a894e7/c17a63bf591f4863b87039a126aff271 [2022-11-26 00:03:28,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:28,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:28,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:28,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:28,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:28,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf9956e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28, skipping insertion in model container [2022-11-26 00:03:28,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:28,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:28,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2022-11-26 00:03:28,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:28,278 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:28,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2022-11-26 00:03:28,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:28,335 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:28,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28 WrapperNode [2022-11-26 00:03:28,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:28,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:28,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:28,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:28,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,381 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2022-11-26 00:03:28,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:28,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:28,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:28,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:28,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:28,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:28,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:28,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:28,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (1/1) ... [2022-11-26 00:03:28,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:28,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:28,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:28,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:03:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:03:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:28,669 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:28,672 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:28,893 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:28,899 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:28,899 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:03:28,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:28 BoogieIcfgContainer [2022-11-26 00:03:28,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:28,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:28,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:28,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:28,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:28" (1/3) ... [2022-11-26 00:03:28,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@859f5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:28, skipping insertion in model container [2022-11-26 00:03:28,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:28" (2/3) ... [2022-11-26 00:03:28,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@859f5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:28, skipping insertion in model container [2022-11-26 00:03:28,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:28" (3/3) ... [2022-11-26 00:03:28,911 INFO L112 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2022-11-26 00:03:28,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:28,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-26 00:03:29,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:03:29,060 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76aff4eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:03:29,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-26 00:03:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 21 states have (on average 1.619047619047619) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:03:29,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:29,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:03:29,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-26 00:03:29,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:29,097 INFO L85 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2022-11-26 00:03:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:03:29,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297409523] [2022-11-26 00:03:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:29,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:03:29,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:03:29,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:03:29,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:03:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:29,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:03:29,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:29,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:03:29,265 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:03:29,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297409523] [2022-11-26 00:03:29,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297409523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:29,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:29,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:03:29,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068535147] [2022-11-26 00:03:29,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:29,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:03:29,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:03:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:03:29,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:03:29,322 INFO L87 Difference]: Start difference. First operand has 27 states, 21 states have (on average 1.619047619047619) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:29,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:29,353 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2022-11-26 00:03:29,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:03:29,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:03:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:29,364 INFO L225 Difference]: With dead ends: 50 [2022-11-26 00:03:29,365 INFO L226 Difference]: Without dead ends: 12 [2022-11-26 00:03:29,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:03:29,373 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:29,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:29,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-26 00:03:29,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-26 00:03:29,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-11-26 00:03:29,410 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 5 [2022-11-26 00:03:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:29,411 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-11-26 00:03:29,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-11-26 00:03:29,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:03:29,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:29,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:03:29,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:29,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:03:29,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-26 00:03:29,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:29,642 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2022-11-26 00:03:29,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:03:29,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133573379] [2022-11-26 00:03:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:29,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:03:29,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:03:29,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:03:29,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:03:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:29,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:03:29,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:29,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:03:29,830 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:03:29,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133573379] [2022-11-26 00:03:29,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133573379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:29,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:29,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:03:29,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184597572] [2022-11-26 00:03:29,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:29,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:03:29,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:03:29,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:03:29,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:03:29,835 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:29,909 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-11-26 00:03:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:03:29,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:03:29,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:29,912 INFO L225 Difference]: With dead ends: 12 [2022-11-26 00:03:29,912 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:03:29,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:29,914 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:29,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:03:29,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:03:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:03:29,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-26 00:03:29,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:29,916 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:03:29,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:03:29,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:03:29,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-11-26 00:03:29,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-11-26 00:03:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-11-26 00:03:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-11-26 00:03:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2022-11-26 00:03:29,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:30,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:03:30,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:03:30,147 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,148 INFO L902 garLoopResultBuilder]: At program point L56-2(lines 56 59) the Hoare annotation is: true [2022-11-26 00:03:30,148 INFO L899 garLoopResultBuilder]: For program point L56-3(lines 56 59) no Hoare annotation was computed. [2022-11-26 00:03:30,148 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 66) no Hoare annotation was computed. [2022-11-26 00:03:30,149 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 66) no Hoare annotation was computed. [2022-11-26 00:03:30,149 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-26 00:03:30,149 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-26 00:03:30,149 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:03:30,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,154 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-26 00:03:30,154 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 30) no Hoare annotation was computed. [2022-11-26 00:03:30,155 INFO L902 garLoopResultBuilder]: At program point L28-2(lines 27 32) the Hoare annotation is: true [2022-11-26 00:03:30,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:03:30,155 INFO L899 garLoopResultBuilder]: For program point L62-1(lines 62 64) no Hoare annotation was computed. [2022-11-26 00:03:30,156 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-26 00:03:30,156 INFO L902 garLoopResultBuilder]: At program point L54-2(lines 54 61) the Hoare annotation is: true [2022-11-26 00:03:30,156 INFO L899 garLoopResultBuilder]: For program point L54-3(lines 52 66) no Hoare annotation was computed. [2022-11-26 00:03:30,156 INFO L902 garLoopResultBuilder]: At program point L67(lines 44 68) the Hoare annotation is: true [2022-11-26 00:03:30,157 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,157 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,157 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,157 INFO L899 garLoopResultBuilder]: For program point L51-2(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,158 INFO L899 garLoopResultBuilder]: For program point L51-3(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,158 INFO L899 garLoopResultBuilder]: For program point L51-4(line 51) no Hoare annotation was computed. [2022-11-26 00:03:30,159 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2022-11-26 00:03:30,162 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:03:30,164 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:03:30,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:30 BoogieIcfgContainer [2022-11-26 00:03:30,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:03:30,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:03:30,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:03:30,176 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:03:30,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:28" (3/4) ... [2022-11-26 00:03:30,179 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:03:30,190 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-26 00:03:30,191 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:03:30,191 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:03:30,192 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:03:30,233 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:03:30,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:03:30,234 INFO L158 Benchmark]: Toolchain (without parser) took 2168.57ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 48.9MB in the beginning and 45.7MB in the end (delta: 3.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-26 00:03:30,234 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:30,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.64ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 37.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:03:30,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.50ms. Allocated memory is still 71.3MB. Free memory was 37.8MB in the beginning and 35.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:30,236 INFO L158 Benchmark]: Boogie Preprocessor took 54.83ms. Allocated memory is still 71.3MB. Free memory was 35.9MB in the beginning and 34.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:30,237 INFO L158 Benchmark]: RCFGBuilder took 463.24ms. Allocated memory is still 71.3MB. Free memory was 34.5MB in the beginning and 41.7MB in the end (delta: -7.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:03:30,238 INFO L158 Benchmark]: TraceAbstraction took 1269.50ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 41.2MB in the beginning and 48.7MB in the end (delta: -7.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-11-26 00:03:30,238 INFO L158 Benchmark]: Witness Printer took 58.10ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 45.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:03:30,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.64ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 37.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.50ms. Allocated memory is still 71.3MB. Free memory was 37.8MB in the beginning and 35.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.83ms. Allocated memory is still 71.3MB. Free memory was 35.9MB in the beginning and 34.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.24ms. Allocated memory is still 71.3MB. Free memory was 34.5MB in the beginning and 41.7MB in the end (delta: -7.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1269.50ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 41.2MB in the beginning and 48.7MB in the end (delta: -7.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 58.10ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 45.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 32 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 2 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-26 00:03:30,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ef8a68-7f70-4d53-be75-5a2eea12c9e0/bin/utaipan-ByfvJB40ur/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 Writing output log to file Ultimate.log Result: TRUE