./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH --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 12586f28203ad48b9026fe813c42990970a62196c7a1d36489c96f441bedf780 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:01:47,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:01:47,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:01:47,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:01:47,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:01:47,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:01:47,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:01:47,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:01:47,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:01:47,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:01:47,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:01:47,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:01:47,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:01:47,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:01:47,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:01:47,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:01:47,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:01:47,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:01:47,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:01:47,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:01:47,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:01:47,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:01:47,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:01:47,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:01:47,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:01:47,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:01:47,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:01:47,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:01:47,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:01:47,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:01:47,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:01:47,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:01:47,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:01:47,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:01:47,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:01:47,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:01:47,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:01:47,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:01:47,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:01:47,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:01:47,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:01:47,325 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-03 04:01:47,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:01:47,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:01:47,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:01:47,358 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:01:47,359 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:01:47,359 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:01:47,359 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:01:47,359 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:01:47,363 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:01:47,363 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:01:47,364 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:01:47,364 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:01:47,364 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:01:47,365 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:01:47,365 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:01:47,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:01:47,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:01:47,366 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:01:47,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:01:47,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:01:47,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:01:47,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:01:47,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:01:47,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:01:47,369 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-03 04:01:47,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:01:47,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:01:47,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:01:47,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:01:47,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:01:47,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:01:47,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:01:47,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:01:47,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:01:47,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:01:47,374 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:01:47,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:01:47,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:01:47,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:01:47,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:01:47,375 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12586f28203ad48b9026fe813c42990970a62196c7a1d36489c96f441bedf780 [2021-11-03 04:01:47,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:01:47,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:01:47,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:01:47,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:01:47,695 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:01:47,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i [2021-11-03 04:01:47,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/data/05701aec6/843af247afaf4830a333d0905897c641/FLAG4ec74a062 [2021-11-03 04:01:48,265 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:01:48,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/sv-benchmarks/c/loop-zilu/benchmark48_linear.i [2021-11-03 04:01:48,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/data/05701aec6/843af247afaf4830a333d0905897c641/FLAG4ec74a062 [2021-11-03 04:01:48,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/data/05701aec6/843af247afaf4830a333d0905897c641 [2021-11-03 04:01:48,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:01:48,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:01:48,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:01:48,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:01:48,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:01:48,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c7ae611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48, skipping insertion in model container [2021-11-03 04:01:48,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:01:48,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:01:48,829 WARN L228 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_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/sv-benchmarks/c/loop-zilu/benchmark48_linear.i[868,881] [2021-11-03 04:01:48,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:01:48,847 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:01:48,860 WARN L228 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_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/sv-benchmarks/c/loop-zilu/benchmark48_linear.i[868,881] [2021-11-03 04:01:48,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:01:48,878 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:01:48,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48 WrapperNode [2021-11-03 04:01:48,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:01:48,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:01:48,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:01:48,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:01:48,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:01:48,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:01:48,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:01:48,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:01:48,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:01:48,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:01:48,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:01:48,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:01:48,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (1/1) ... [2021-11-03 04:01:48,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:01:48,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:01:48,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:01:48,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:01:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:01:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:01:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:01:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:01:49,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:01:49,267 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 04:01:49,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:49 BoogieIcfgContainer [2021-11-03 04:01:49,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:01:49,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:01:49,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:01:49,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:01:49,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:01:48" (1/3) ... [2021-11-03 04:01:49,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7712e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:01:49, skipping insertion in model container [2021-11-03 04:01:49,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:48" (2/3) ... [2021-11-03 04:01:49,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7712e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:01:49, skipping insertion in model container [2021-11-03 04:01:49,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:49" (3/3) ... [2021-11-03 04:01:49,293 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark48_linear.i [2021-11-03 04:01:49,298 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:01:49,299 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:01:49,384 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:01:49,412 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:01:49,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:01:49,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.8) internal successors, (18), 16 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) [2021-11-03 04:01:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 04:01:49,430 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:01:49,431 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 04:01:49,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:01:49,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:01:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2181983, now seen corresponding path program 1 times [2021-11-03 04:01:49,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:01:49,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587410587] [2021-11-03 04:01:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:01:49,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:01:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:01:49,537 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:01:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:01:49,575 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 04:01:49,577 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:01:49,578 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:01:49,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:01:49,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:01:49,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:01:49,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:01:49,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:01:49,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:01:49,587 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-03 04:01:49,591 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:01:49,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:01:49 BoogieIcfgContainer [2021-11-03 04:01:49,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:01:49,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:01:49,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:01:49,609 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:01:49,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:49" (3/4) ... [2021-11-03 04:01:49,612 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 04:01:49,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dbcf66-15b1-4ac2-ac6e-24cac513aa39/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:01:49,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:01:49,653 INFO L168 Benchmark]: Toolchain (without parser) took 1017.15 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 86.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:01:49,654 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 46.4 MB in the beginning and 46.4 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:01:49,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.94 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 115.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:01:49,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.20 ms. Allocated memory is still 140.5 MB. Free memory was 115.0 MB in the beginning and 113.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:01:49,656 INFO L168 Benchmark]: Boogie Preprocessor took 20.70 ms. Allocated memory is still 140.5 MB. Free memory was 113.7 MB in the beginning and 112.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:01:49,657 INFO L168 Benchmark]: RCFGBuilder took 337.94 ms. Allocated memory is still 140.5 MB. Free memory was 112.5 MB in the beginning and 101.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:01:49,657 INFO L168 Benchmark]: TraceAbstraction took 332.39 ms. Allocated memory is still 140.5 MB. Free memory was 100.8 MB in the beginning and 87.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:01:49,658 INFO L168 Benchmark]: Witness Printer took 42.39 ms. Allocated memory is still 140.5 MB. Free memory was 87.8 MB in the beginning and 86.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:01:49,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 46.4 MB in the beginning and 46.4 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.94 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 115.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.20 ms. Allocated memory is still 140.5 MB. Free memory was 115.0 MB in the beginning and 113.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.70 ms. Allocated memory is still 140.5 MB. Free memory was 113.7 MB in the beginning and 112.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 337.94 ms. Allocated memory is still 140.5 MB. Free memory was 112.5 MB in the beginning and 101.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 332.39 ms. Allocated memory is still 140.5 MB. Free memory was 100.8 MB in the beginning and 87.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 42.39 ms. Allocated memory is still 140.5 MB. Free memory was 87.8 MB in the beginning and 86.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] COND FALSE !(!(i 0)) [L24] COND TRUE i