./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/GCD2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/GCD2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 35227298135ad932045d20354d3c27230a951768ba1221004cc62379288111ba --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:18:54,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:18:54,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:18:55,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:18:55,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:18:55,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:18:55,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:18:55,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:18:55,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:18:55,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:18:55,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:18:55,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:18:55,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:18:55,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:18:55,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:18:55,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:18:55,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:18:55,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:18:55,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:18:55,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:18:55,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:18:55,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:18:55,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:18:55,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:18:55,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:18:55,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:18:55,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:18:55,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:18:55,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:18:55,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:18:55,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:18:55,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:18:55,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:18:55,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:18:55,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:18:55,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:18:55,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:18:55,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:18:55,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:18:55,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:18:55,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:18:55,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:18:55,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:18:55,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:18:55,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:18:55,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:18:55,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:18:55,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:18:55,150 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:18:55,151 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:18:55,151 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:18:55,151 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:18:55,152 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:18:55,152 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:18:55,152 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:18:55,153 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:18:55,153 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:18:55,153 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:18:55,153 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:18:55,153 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:18:55,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:18:55,155 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:18:55,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:18:55,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:18:55,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:18:55,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:18:55,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:18:55,156 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:18:55,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:18:55,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:18:55,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:18:55,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:18:55,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:18:55,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:18:55,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:18:55,159 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:18:55,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:18:55,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:18:55,159 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:18:55,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:18:55,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:18:55,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:18:55,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35227298135ad932045d20354d3c27230a951768ba1221004cc62379288111ba [2022-11-25 23:18:55,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:18:55,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:18:55,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:18:55,479 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:18:55,480 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:18:55,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/termination-restricted-15/GCD2.c [2022-11-25 23:18:58,579 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:18:58,815 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:18:58,816 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/sv-benchmarks/c/termination-restricted-15/GCD2.c [2022-11-25 23:18:58,822 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/data/e7ed2d871/649451717e7c444d96776c895d869db8/FLAG826aa3882 [2022-11-25 23:18:58,839 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/data/e7ed2d871/649451717e7c444d96776c895d869db8 [2022-11-25 23:18:58,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:18:58,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:18:58,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:18:58,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:18:58,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:18:58,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:18:58" (1/1) ... [2022-11-25 23:18:58,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69259ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:58, skipping insertion in model container [2022-11-25 23:18:58,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:18:58" (1/1) ... [2022-11-25 23:18:58,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:18:58,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:18:59,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:18:59,076 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:18:59,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:18:59,103 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:18:59,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59 WrapperNode [2022-11-25 23:18:59,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:18:59,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:18:59,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:18:59,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:18:59,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,135 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-11-25 23:18:59,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:18:59,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:18:59,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:18:59,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:18:59,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:18:59,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:18:59,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:18:59,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:18:59,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:18:59,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:18:59,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:18:59,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:18:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:18:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:18:59,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:18:59,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:18:59,432 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:18:59,470 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:18:59,473 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:18:59,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:18:59 BoogieIcfgContainer [2022-11-25 23:18:59,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:18:59,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:18:59,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:18:59,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:18:59,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:18:58" (1/3) ... [2022-11-25 23:18:59,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e45fab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:18:59, skipping insertion in model container [2022-11-25 23:18:59,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (2/3) ... [2022-11-25 23:18:59,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e45fab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:18:59, skipping insertion in model container [2022-11-25 23:18:59,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:18:59" (3/3) ... [2022-11-25 23:18:59,502 INFO L112 eAbstractionObserver]: Analyzing ICFG GCD2.c [2022-11-25 23:18:59,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:18:59,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:18:59,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:18:59,614 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@230220eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:18:59,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:18:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:59,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:18:59,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:59,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:18:59,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:18:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash 67760911, now seen corresponding path program 1 times [2022-11-25 23:18:59,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:59,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339582962] [2022-11-25 23:18:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:59,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:59,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:59,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339582962] [2022-11-25 23:18:59,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339582962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:59,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:59,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:18:59,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944968762] [2022-11-25 23:18:59,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:59,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:18:59,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:59,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:18:59,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:18:59,978 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 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) [2022-11-25 23:19:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:00,060 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2022-11-25 23:19:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:19:00,063 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 [2022-11-25 23:19:00,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:00,071 INFO L225 Difference]: With dead ends: 10 [2022-11-25 23:19:00,071 INFO L226 Difference]: Without dead ends: 8 [2022-11-25 23:19:00,074 INFO L412 NwaCegarLoop]: 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 [2022-11-25 23:19:00,078 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:00,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:19:00,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-25 23:19:00,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-25 23:19:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-11-25 23:19:00,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 10 transitions. Word has length 5 [2022-11-25 23:19:00,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:00,136 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-25 23:19:00,150 INFO L496 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) [2022-11-25 23:19:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2022-11-25 23:19:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:19:00,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:00,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:19:00,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:19:00,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:19:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:00,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2100588300, now seen corresponding path program 1 times [2022-11-25 23:19:00,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:00,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772620769] [2022-11-25 23:19:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:00,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:00,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:00,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772620769] [2022-11-25 23:19:00,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772620769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:00,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:00,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:19:00,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431358913] [2022-11-25 23:19:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:00,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:19:00,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:00,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:19:00,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:19:00,242 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:00,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:00,314 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2022-11-25 23:19:00,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:19:00,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-25 23:19:00,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:00,317 INFO L225 Difference]: With dead ends: 21 [2022-11-25 23:19:00,317 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 23:19:00,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:19:00,319 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:00,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:19:00,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 23:19:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2022-11-25 23:19:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-25 23:19:00,327 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 6 [2022-11-25 23:19:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:00,327 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-25 23:19:00,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-11-25 23:19:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:19:00,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:00,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 23:19:00,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:19:00,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:19:00,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:00,330 INFO L85 PathProgramCache]: Analyzing trace with hash 952597261, now seen corresponding path program 1 times [2022-11-25 23:19:00,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:00,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137194681] [2022-11-25 23:19:00,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:00,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:00,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:00,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137194681] [2022-11-25 23:19:00,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137194681] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:19:00,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082311922] [2022-11-25 23:19:00,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:00,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:00,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:00,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:00,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:19:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:00,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:19:00,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:00,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:00,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:00,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082311922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:00,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:19:00,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-11-25 23:19:00,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905030936] [2022-11-25 23:19:00,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:00,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:19:00,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:19:00,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:19:00,692 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:00,756 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2022-11-25 23:19:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:19:00,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:19:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:00,758 INFO L225 Difference]: With dead ends: 19 [2022-11-25 23:19:00,758 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 23:19:00,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:19:00,760 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:00,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:19:00,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 23:19:00,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2022-11-25 23:19:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-25 23:19:00,766 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 9 [2022-11-25 23:19:00,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:00,766 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-25 23:19:00,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:00,767 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-11-25 23:19:00,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:19:00,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:00,768 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:00,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:00,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:00,978 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:19:00,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:00,979 INFO L85 PathProgramCache]: Analyzing trace with hash -608540512, now seen corresponding path program 1 times [2022-11-25 23:19:00,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:00,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165401456] [2022-11-25 23:19:00,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:00,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:01,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165401456] [2022-11-25 23:19:01,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165401456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:19:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716661943] [2022-11-25 23:19:01,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:01,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:01,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:01,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:01,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:19:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:01,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:19:01,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:01,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:01,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716661943] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:19:01,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [340177745] [2022-11-25 23:19:01,319 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-25 23:19:01,320 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:19:01,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:19:01,329 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:19:01,330 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:19:01,417 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:19:01,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [340177745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:01,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:19:01,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4, 4] total 15 [2022-11-25 23:19:01,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53633210] [2022-11-25 23:19:01,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:01,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:19:01,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:01,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:19:01,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:19:01,658 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:01,764 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2022-11-25 23:19:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:19:01,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 9 [2022-11-25 23:19:01,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:01,766 INFO L225 Difference]: With dead ends: 30 [2022-11-25 23:19:01,766 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 23:19:01,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:19:01,768 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:01,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:19:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 23:19:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2022-11-25 23:19:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 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) [2022-11-25 23:19:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2022-11-25 23:19:01,780 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 9 [2022-11-25 23:19:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:01,782 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-11-25 23:19:01,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-11-25 23:19:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:19:01,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:01,784 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:01,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:01,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:01,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:19:01,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash 26618105, now seen corresponding path program 1 times [2022-11-25 23:19:01,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:01,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190786336] [2022-11-25 23:19:01,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:01,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:19:02,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:02,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190786336] [2022-11-25 23:19:02,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190786336] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:19:02,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658709123] [2022-11-25 23:19:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:02,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:02,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:02,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:02,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:19:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:02,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:19:02,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:19:02,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:02,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:19:02,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658709123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:19:02,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1290299289] [2022-11-25 23:19:02,313 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-25 23:19:02,316 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:19:02,316 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:19:02,317 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:19:02,317 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:19:02,436 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:19:02,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1290299289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:02,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:19:02,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6, 6] total 13 [2022-11-25 23:19:02,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058492251] [2022-11-25 23:19:02,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:02,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:19:02,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:02,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:19:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:19:02,587 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:02,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:02,696 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-11-25 23:19:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:19:02,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-25 23:19:02,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:02,698 INFO L225 Difference]: With dead ends: 30 [2022-11-25 23:19:02,699 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:19:02,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-25 23:19:02,702 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:02,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:19:02,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:19:02,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:19:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:19:02,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-25 23:19:02,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:02,707 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:19:02,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:19:02,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:19:02,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:19:02,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:19:02,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:02,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:02,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:19:03,074 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 23:19:03,074 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:19:03,075 INFO L895 garLoopResultBuilder]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~xtmp~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~tmp~0#1|) (<= |ULTIMATE.start_main_~tmp~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~xtmp~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2022-11-25 23:19:03,075 INFO L899 garLoopResultBuilder]: For program point L21-3(lines 17 24) no Hoare annotation was computed. [2022-11-25 23:19:03,075 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 24) no Hoare annotation was computed. [2022-11-25 23:19:03,076 INFO L895 garLoopResultBuilder]: At program point L13-2(lines 13 28) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2022-11-25 23:19:03,076 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 23:19:03,077 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:19:03,077 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-11-25 23:19:03,078 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-25 23:19:03,081 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 23:19:03,083 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:19:03,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:19:03 BoogieIcfgContainer [2022-11-25 23:19:03,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:19:03,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:19:03,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:19:03,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:19:03,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:18:59" (3/4) ... [2022-11-25 23:19:03,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:19:03,120 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 23:19:03,121 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 23:19:03,121 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 23:19:03,154 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:19:03,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:19:03,155 INFO L158 Benchmark]: Toolchain (without parser) took 4312.48ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 94.7MB in the end (delta: 57.0MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2022-11-25 23:19:03,155 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:03,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.74ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 151.4MB in the end (delta: 280.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:19:03,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.24ms. Allocated memory is still 184.5MB. Free memory was 150.4MB in the beginning and 149.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:03,157 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 184.5MB. Free memory was 149.3MB in the beginning and 147.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:03,157 INFO L158 Benchmark]: RCFGBuilder took 310.62ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 137.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:19:03,158 INFO L158 Benchmark]: TraceAbstraction took 3623.45ms. Allocated memory is still 184.5MB. Free memory was 136.8MB in the beginning and 96.8MB in the end (delta: 40.0MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:03,159 INFO L158 Benchmark]: Witness Printer took 49.60ms. Allocated memory is still 184.5MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:03,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.74ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 151.4MB in the end (delta: 280.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.24ms. Allocated memory is still 184.5MB. Free memory was 150.4MB in the beginning and 149.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 184.5MB. Free memory was 149.3MB in the beginning and 147.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.62ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 137.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3623.45ms. Allocated memory is still 184.5MB. Free memory was 136.8MB in the beginning and 96.8MB in the end (delta: 40.0MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * Witness Printer took 49.60ms. Allocated memory is still 184.5MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). 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 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 167 IncrementalHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 8 mSDtfsCounter, 167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 44 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 42 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 368 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 309 SizeOfPredicates, 9 NumberOfNonLiveVariables, 91 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 16/27 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: OVERALL_TIME: 0.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 12, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 29, TOOLS_POST_TIME: 0.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 29, TOOLS_QUANTIFIERELIM_TIME: 0.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 60, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 108, DAG_COMPRESSION_RETAINED_NODES: 53, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= x + 2147483648) && 0 <= y + 2147483648) && y <= 2147483647 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((((((0 <= x && x <= 2147483647) && xtmp <= 2147483647) && 0 <= y) && 0 <= tmp) && tmp <= 2147483647) && 0 <= xtmp) && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-25 23:19:03,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6f9caf-ea8e-47e4-9523-171216a8701c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE