./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs --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 039c983cd55187ea3968542120c3863142c878775a3be18d8ccc83df12199e4d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:35:08,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:35:08,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:35:08,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:35:08,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:35:08,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:35:08,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:35:08,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:35:08,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:35:08,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:35:08,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:35:08,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:35:08,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:35:08,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:35:08,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:35:08,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:35:08,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:35:08,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:35:08,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:35:08,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:35:08,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:35:08,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:35:08,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:35:08,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:35:08,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:35:08,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:35:08,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:35:08,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:35:08,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:35:08,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:35:08,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:35:08,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:35:08,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:35:08,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:35:08,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:35:08,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:35:08,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:35:08,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:35:08,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:35:08,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:35:08,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:35:08,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-19 14:35:08,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:35:08,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:35:08,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:35:08,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:35:08,383 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:35:08,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:35:08,384 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:35:08,384 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:35:08,390 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:35:08,390 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:35:08,391 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:35:08,391 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:35:08,392 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:35:08,392 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:35:08,392 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:35:08,392 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:35:08,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:35:08,393 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:35:08,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:35:08,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:35:08,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:35:08,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:35:08,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:35:08,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:35:08,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:35:08,395 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-19 14:35:08,395 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:35:08,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:35:08,396 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:35:08,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:35:08,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:35:08,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:35:08,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:35:08,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:35:08,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:35:08,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:35:08,398 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:35:08,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:35:08,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:35:08,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:35:08,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:35:08,399 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_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039c983cd55187ea3968542120c3863142c878775a3be18d8ccc83df12199e4d [2021-11-19 14:35:08,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:35:08,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:35:08,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:35:08,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:35:08,688 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:35:08,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2021-11-19 14:35:08,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/data/5742e22f5/c8bec6cf21c8495387e09b48ba01ebfe/FLAG43c8f5afa [2021-11-19 14:35:09,292 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:35:09,292 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2021-11-19 14:35:09,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/data/5742e22f5/c8bec6cf21c8495387e09b48ba01ebfe/FLAG43c8f5afa [2021-11-19 14:35:09,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/data/5742e22f5/c8bec6cf21c8495387e09b48ba01ebfe [2021-11-19 14:35:09,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:35:09,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:35:09,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:35:09,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:35:09,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:35:09,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa8a4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09, skipping insertion in model container [2021-11-19 14:35:09,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:35:09,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:35:09,862 WARN L230 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_80008f4f-d230-4ecb-a219-2e24c72694dd/sv-benchmarks/c/loop-zilu/benchmark47_linear.i[868,881] [2021-11-19 14:35:09,874 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:35:09,883 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:35:09,897 WARN L230 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_80008f4f-d230-4ecb-a219-2e24c72694dd/sv-benchmarks/c/loop-zilu/benchmark47_linear.i[868,881] [2021-11-19 14:35:09,912 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:35:09,929 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:35:09,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09 WrapperNode [2021-11-19 14:35:09,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:35:09,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:35:09,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:35:09,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:35:09,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,967 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-19 14:35:09,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:35:09,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:35:09,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:35:09,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:35:09,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:09,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:10,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:10,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:35:10,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:35:10,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:35:10,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:35:10,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (1/1) ... [2021-11-19 14:35:10,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:35:10,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:35:10,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:35:10,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:35:10,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:35:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:35:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:35:10,150 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:35:10,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:35:10,340 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:35:10,374 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:35:10,374 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:35:10,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:35:10 BoogieIcfgContainer [2021-11-19 14:35:10,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:35:10,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:35:10,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:35:10,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:35:10,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:35:09" (1/3) ... [2021-11-19 14:35:10,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb5bc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:35:10, skipping insertion in model container [2021-11-19 14:35:10,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:35:09" (2/3) ... [2021-11-19 14:35:10,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb5bc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:35:10, skipping insertion in model container [2021-11-19 14:35:10,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:35:10" (3/3) ... [2021-11-19 14:35:10,385 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark47_linear.i [2021-11-19 14:35:10,389 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:35:10,390 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-19 14:35:10,434 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:35:10,441 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 [2021-11-19 14:35:10,441 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-19 14:35:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 28 states have internal predecessors, (33), 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) [2021-11-19 14:35:10,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:35:10,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:10,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:35:10,477 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-19 14:35:10,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:10,483 INFO L85 PathProgramCache]: Analyzing trace with hash 93500143, now seen corresponding path program 1 times [2021-11-19 14:35:10,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:35:10,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54330003] [2021-11-19 14:35:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:10,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:35:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:35:10,644 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:35:10,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54330003] [2021-11-19 14:35:10,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54330003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:10,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:10,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:35:10,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14365425] [2021-11-19 14:35:10,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:10,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:35:10,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:35:10,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:35:10,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:35:10,682 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 28 states have internal predecessors, (33), 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 2.5) internal successors, (5), 3 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) [2021-11-19 14:35:10,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:10,752 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-19 14:35:10,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:35:10,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2021-11-19 14:35:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:10,765 INFO L225 Difference]: With dead ends: 29 [2021-11-19 14:35:10,765 INFO L226 Difference]: Without dead ends: 25 [2021-11-19 14:35:10,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:35:10,773 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:10,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:10,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-19 14:35:10,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-19 14:35:10,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 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) [2021-11-19 14:35:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-11-19 14:35:10,817 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 5 [2021-11-19 14:35:10,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:10,817 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-11-19 14:35:10,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2021-11-19 14:35:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-11-19 14:35:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:35:10,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:10,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:35:10,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:35:10,819 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-19 14:35:10,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 93500335, now seen corresponding path program 1 times [2021-11-19 14:35:10,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:35:10,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357708679] [2021-11-19 14:35:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:10,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:35:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:35:10,836 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:35:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:35:10,859 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:35:10,859 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:35:10,861 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2021-11-19 14:35:10,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2021-11-19 14:35:10,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2021-11-19 14:35:10,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2021-11-19 14:35:10,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2021-11-19 14:35:10,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2021-11-19 14:35:10,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2021-11-19 14:35:10,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2021-11-19 14:35:10,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2021-11-19 14:35:10,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2021-11-19 14:35:10,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:35:10,869 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 14:35:10,873 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:35:10,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:35:10 BoogieIcfgContainer [2021-11-19 14:35:10,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:35:10,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:35:10,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:35:10,892 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:35:10,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:35:10" (3/4) ... [2021-11-19 14:35:10,894 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 14:35:10,943 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80008f4f-d230-4ecb-a219-2e24c72694dd/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:35:10,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:35:10,946 INFO L158 Benchmark]: Toolchain (without parser) took 1283.72ms. Allocated memory is still 102.8MB. Free memory was 68.5MB in the beginning and 40.8MB in the end (delta: 27.7MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-11-19 14:35:10,946 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 75.7MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:35:10,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.73ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 79.4MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:35:10,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.71ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:35:10,947 INFO L158 Benchmark]: Boogie Preprocessor took 33.31ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 76.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:35:10,948 INFO L158 Benchmark]: RCFGBuilder took 374.52ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 66.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:35:10,948 INFO L158 Benchmark]: TraceAbstraction took 512.93ms. Allocated memory is still 102.8MB. Free memory was 66.0MB in the beginning and 42.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-19 14:35:10,949 INFO L158 Benchmark]: Witness Printer took 53.27ms. Allocated memory is still 102.8MB. Free memory was 42.5MB in the beginning and 40.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:35:10,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 75.7MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.73ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 79.4MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.71ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.31ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 76.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 374.52ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 66.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 512.93ms. Allocated memory is still 102.8MB. Free memory was 66.0MB in the beginning and 42.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 53.27ms. Allocated memory is still 102.8MB. Free memory was 42.5MB in the beginning and 40.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x