./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0d4863d19d9edc8c921323118a78f9e7d3499a81 ........................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:39:18,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:39:18,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:39:18,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:39:18,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:39:18,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:39:18,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:39:18,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:39:18,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:39:18,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:39:18,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:39:18,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:39:18,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:39:18,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:39:18,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:39:18,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:39:18,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:39:18,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:39:18,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:39:18,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:39:18,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:39:18,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:39:18,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:39:18,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:39:18,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:39:18,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:39:18,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:39:18,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:39:18,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:39:18,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:39:18,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:39:18,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:39:18,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:39:18,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:39:18,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:39:18,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:39:18,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:39:18,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:39:18,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:39:18,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:39:18,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:39:18,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-13 07:39:18,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:39:18,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:39:18,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:39:18,684 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:39:18,684 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:39:18,684 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:39:18,685 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:39:18,685 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:39:18,685 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:39:18,685 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:39:18,686 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:39:18,687 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:39:18,687 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:39:18,687 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:39:18,687 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:39:18,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:39:18,688 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:39:18,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:39:18,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:39:18,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:39:18,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:39:18,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:39:18,690 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 07:39:18,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:39:18,690 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:39:18,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:39:18,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:39:18,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:39:18,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:39:18,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:39:18,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:39:18,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:39:18,694 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:39:18,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:39:18,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:39:18,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:39:18,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:39:18,695 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_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d4863d19d9edc8c921323118a78f9e7d3499a81 [2021-10-13 07:39:19,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:39:19,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:39:19,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:39:19,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:39:19,027 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:39:19,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c [2021-10-13 07:39:19,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/data/1074fce33/6947380f68e245e9a075763619e17056/FLAGe498f0916 [2021-10-13 07:39:19,596 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:39:19,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c [2021-10-13 07:39:19,609 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/data/1074fce33/6947380f68e245e9a075763619e17056/FLAGe498f0916 [2021-10-13 07:39:19,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/data/1074fce33/6947380f68e245e9a075763619e17056 [2021-10-13 07:39:20,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:39:20,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:39:20,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:39:20,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:39:20,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:39:20,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63bf953b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20, skipping insertion in model container [2021-10-13 07:39:20,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:39:20,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:39:20,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:39:20,222 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:39:20,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:39:20,243 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:39:20,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20 WrapperNode [2021-10-13 07:39:20,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:39:20,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:39:20,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:39:20,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:39:20,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:39:20,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:39:20,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:39:20,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:39:20,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:39:20,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:39:20,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:39:20,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:39:20,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (1/1) ... [2021-10-13 07:39:20,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:39:20,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:39:20,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:39:20,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:39:20,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:39:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:39:20,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:39:20,572 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 07:39:20,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:20 BoogieIcfgContainer [2021-10-13 07:39:20,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:39:20,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:39:20,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:39:20,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:39:20,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:39:20" (1/3) ... [2021-10-13 07:39:20,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e731dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:39:20, skipping insertion in model container [2021-10-13 07:39:20,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:39:20" (2/3) ... [2021-10-13 07:39:20,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e731dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:39:20, skipping insertion in model container [2021-10-13 07:39:20,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:20" (3/3) ... [2021-10-13 07:39:20,583 INFO L111 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig6.c [2021-10-13 07:39:20,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:39:20,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:39:20,654 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:39:20,660 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, mConcurrency=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 [2021-10-13 07:39:20,664 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 07:39:20,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 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) [2021-10-13 07:39:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 07:39:20,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:20,710 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 07:39:20,711 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-13 07:39:20,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:20,716 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-13 07:39:20,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:39:20,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305807224] [2021-10-13 07:39:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:20,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:39:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:20,913 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:39:20,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305807224] [2021-10-13 07:39:20,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305807224] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:20,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:20,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:39:20,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945409666] [2021-10-13 07:39:20,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:39:20,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:39:20,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:39:20,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:20,956 INFO L87 Difference]: Start difference. First operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-10-13 07:39:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:21,021 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-13 07:39:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:39:21,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-10-13 07:39:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:21,030 INFO L225 Difference]: With dead ends: 7 [2021-10-13 07:39:21,030 INFO L226 Difference]: Without dead ends: 5 [2021-10-13 07:39:21,032 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:39:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2021-10-13 07:39:21,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-10-13 07:39:21,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.25) 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) [2021-10-13 07:39:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2021-10-13 07:39:21,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2021-10-13 07:39:21,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:21,059 INFO L470 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-10-13 07:39:21,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-10-13 07:39:21,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2021-10-13 07:39:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 07:39:21,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:39:21,060 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 07:39:21,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:39:21,061 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-13 07:39:21,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:39:21,062 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-10-13 07:39:21,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:39:21,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732705857] [2021-10-13 07:39:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:21,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:39:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:21,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:39:21,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732705857] [2021-10-13 07:39:21,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732705857] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:39:21,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:39:21,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:39:21,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793260911] [2021-10-13 07:39:21,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:39:21,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:39:21,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:39:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:39:21,099 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-13 07:39:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:39:21,115 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2021-10-13 07:39:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:39:21,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-13 07:39:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:39:21,116 INFO L225 Difference]: With dead ends: 5 [2021-10-13 07:39:21,116 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:39:21,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:39:21,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:39:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:39:21,118 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) [2021-10-13 07:39:21,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:39:21,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-13 07:39:21,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:39:21,118 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:39:21,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-13 07:39:21,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:39:21,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:39:21,121 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 07:39:21,122 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 07:39:21,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:39:21,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:39:21,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:39:21,137 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-13 07:39:21,137 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:39:21,138 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-13 07:39:21,138 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:39:21,138 INFO L857 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-10-13 07:39:21,138 INFO L857 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-10-13 07:39:21,139 INFO L853 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483647)) [2021-10-13 07:39:21,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:39:21,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:39:21 BoogieIcfgContainer [2021-10-13 07:39:21,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:39:21,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:39:21,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:39:21,157 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:39:21,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:39:20" (3/4) ... [2021-10-13 07:39:21,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:39:21,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 07:39:21,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 07:39:21,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:39:21,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:39:21,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:39:21,216 INFO L168 Benchmark]: Toolchain (without parser) took 1202.50 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.5 MB in the beginning and 106.1 MB in the end (delta: -54.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:21,216 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory is still 67.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:39:21,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.02 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.3 MB in the beginning and 107.6 MB in the end (delta: -56.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:21,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.55 ms. Allocated memory is still 130.0 MB. Free memory was 107.6 MB in the beginning and 106.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:39:21,218 INFO L168 Benchmark]: Boogie Preprocessor took 16.70 ms. Allocated memory is still 130.0 MB. Free memory was 106.3 MB in the beginning and 105.5 MB in the end (delta: 878.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:21,218 INFO L168 Benchmark]: RCFGBuilder took 286.74 ms. Allocated memory is still 130.0 MB. Free memory was 105.2 MB in the beginning and 96.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:21,219 INFO L168 Benchmark]: TraceAbstraction took 579.46 ms. Allocated memory is still 130.0 MB. Free memory was 96.2 MB in the beginning and 72.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:21,220 INFO L168 Benchmark]: Witness Printer took 57.53 ms. Allocated memory is still 130.0 MB. Free memory was 72.7 MB in the beginning and 106.1 MB in the end (delta: -33.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:39:21,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory is still 67.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.02 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.3 MB in the beginning and 107.6 MB in the end (delta: -56.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.55 ms. Allocated memory is still 130.0 MB. Free memory was 107.6 MB in the beginning and 106.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.70 ms. Allocated memory is still 130.0 MB. Free memory was 106.3 MB in the beginning and 105.5 MB in the end (delta: 878.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 286.74 ms. Allocated memory is still 130.0 MB. Free memory was 105.2 MB in the beginning and 96.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 579.46 ms. Allocated memory is still 130.0 MB. Free memory was 96.2 MB in the beginning and 72.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 57.53 ms. Allocated memory is still 130.0 MB. Free memory was 72.7 MB in the beginning and 106.1 MB in the end (delta: -33.4 MB). Peak memory consumption was 6.0 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 491.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 36.6ms, AutomataDifference: 115.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 13.9ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 7 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 3.6ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 4.7ms SsaConstructionTime, 21.9ms SatisfiabilityAnalysisTime, 103.3ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:39:21,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3eaa1c-b0ed-4bf5-bfea-3f4e137afd49/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...