./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF --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 fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:39:15,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:39:15,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:39:15,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:39:15,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:39:15,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:39:15,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:39:15,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:39:15,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:39:15,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:39:15,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:39:15,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:39:15,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:39:15,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:39:15,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:39:15,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:39:15,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:39:15,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:39:15,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:39:15,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:39:15,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:39:15,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:39:15,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:39:15,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:39:15,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:39:15,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:39:15,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:39:15,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:39:15,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:39:15,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:39:15,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:39:15,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:39:15,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:39:15,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:39:15,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:39:15,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:39:15,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:39:15,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:39:15,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:39:15,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:39:15,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:39:15,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-13 01:39:15,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:39:15,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:39:15,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:39:15,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:39:15,886 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:39:15,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:39:15,886 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:39:15,887 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:39:15,887 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:39:15,887 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:39:15,888 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:39:15,889 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:39:15,889 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:39:15,889 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:39:15,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:39:15,890 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:39:15,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:39:15,891 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:39:15,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:39:15,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:39:15,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:39:15,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:39:15,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:39:15,892 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 01:39:15,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:39:15,893 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:39:15,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:39:15,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:39:15,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:39:15,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:39:15,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:39:15,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:39:15,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:39:15,897 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:39:15,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:39:15,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:39:15,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:39:15,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:39:15,898 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_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 [2021-11-13 01:39:16,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:39:16,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:39:16,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:39:16,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:39:16,260 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:39:16,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2021-11-13 01:39:16,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/data/81004f5ae/404b4f2f4aea40759ff3368cf530daa5/FLAG28a0cc56e [2021-11-13 01:39:16,829 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:39:16,829 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2021-11-13 01:39:16,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/data/81004f5ae/404b4f2f4aea40759ff3368cf530daa5/FLAG28a0cc56e [2021-11-13 01:39:17,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/data/81004f5ae/404b4f2f4aea40759ff3368cf530daa5 [2021-11-13 01:39:17,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:39:17,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:39:17,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:39:17,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:39:17,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:39:17,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15297ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17, skipping insertion in model container [2021-11-13 01:39:17,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:39:17,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:39:17,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:39:17,431 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:39:17,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:39:17,457 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:39:17,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17 WrapperNode [2021-11-13 01:39:17,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:39:17,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:39:17,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:39:17,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:39:17,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:39:17,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:39:17,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:39:17,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:39:17,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:39:17,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:39:17,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:39:17,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:39:17,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (1/1) ... [2021-11-13 01:39:17,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:39:17,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:39:17,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:39:17,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:39:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:39:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:39:17,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:39:17,824 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:39:17,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:39:17 BoogieIcfgContainer [2021-11-13 01:39:17,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:39:17,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:39:17,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:39:17,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:39:17,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:39:17" (1/3) ... [2021-11-13 01:39:17,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f30c150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:39:17, skipping insertion in model container [2021-11-13 01:39:17,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:17" (2/3) ... [2021-11-13 01:39:17,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f30c150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:39:17, skipping insertion in model container [2021-11-13 01:39:17,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:39:17" (3/3) ... [2021-11-13 01:39:17,837 INFO L111 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2021-11-13 01:39:17,843 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:39:17,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-13 01:39:17,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:39:17,900 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:39:17,901 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-13 01:39:17,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:39:17,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:17,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:39:17,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 01:39:17,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:17,931 INFO L85 PathProgramCache]: Analyzing trace with hash 76993943, now seen corresponding path program 1 times [2021-11-13 01:39:17,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:39:17,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883065546] [2021-11-13 01:39:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:17,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:39:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,077 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:39:18,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883065546] [2021-11-13 01:39:18,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883065546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:18,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:18,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:39:18,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228179073] [2021-11-13 01:39:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:18,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:39:18,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:39:18,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:39:18,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,118 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 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), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:18,182 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-11-13 01:39:18,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:39:18,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:39:18,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:18,194 INFO L225 Difference]: With dead ends: 33 [2021-11-13 01:39:18,195 INFO L226 Difference]: Without dead ends: 30 [2021-11-13 01:39:18,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,202 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.63ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.05ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:18,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 23 Unknown, 0 Unchecked, 1.63ms Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 42.05ms Time] [2021-11-13 01:39:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-13 01:39:18,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-11-13 01:39:18,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.8) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-11-13 01:39:18,250 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2021-11-13 01:39:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:18,251 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-11-13 01:39:18,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,271 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-11-13 01:39:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:39:18,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:18,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:39:18,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:39:18,272 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 01:39:18,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:18,273 INFO L85 PathProgramCache]: Analyzing trace with hash 76994135, now seen corresponding path program 1 times [2021-11-13 01:39:18,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:39:18,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814847208] [2021-11-13 01:39:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:18,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:39:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:39:18,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814847208] [2021-11-13 01:39:18,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814847208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:18,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:18,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:39:18,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585329192] [2021-11-13 01:39:18,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:18,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:39:18,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:39:18,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:39:18,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,334 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:18,369 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2021-11-13 01:39:18,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:39:18,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:39:18,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:18,371 INFO L225 Difference]: With dead ends: 28 [2021-11-13 01:39:18,372 INFO L226 Difference]: Without dead ends: 26 [2021-11-13 01:39:18,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,374 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.94ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.31ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:18,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 12 Unknown, 0 Unchecked, 0.94ms Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 30.31ms Time] [2021-11-13 01:39:18,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-13 01:39:18,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-13 01:39:18,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-13 01:39:18,383 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2021-11-13 01:39:18,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:18,383 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-13 01:39:18,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,384 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-13 01:39:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:39:18,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:18,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:39:18,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:39:18,386 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 01:39:18,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash 77009831, now seen corresponding path program 1 times [2021-11-13 01:39:18,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:39:18,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834582598] [2021-11-13 01:39:18,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:18,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:39:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,412 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:39:18,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834582598] [2021-11-13 01:39:18,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834582598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:18,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:18,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:39:18,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035996440] [2021-11-13 01:39:18,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:18,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:39:18,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:39:18,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:39:18,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,416 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:18,469 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2021-11-13 01:39:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:39:18,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:39:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:18,471 INFO L225 Difference]: With dead ends: 26 [2021-11-13 01:39:18,471 INFO L226 Difference]: Without dead ends: 25 [2021-11-13 01:39:18,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,474 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.48ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:18,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 22 Invalid, 13 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 48.48ms Time] [2021-11-13 01:39:18,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-13 01:39:18,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-13 01:39:18,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.6) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-11-13 01:39:18,481 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2021-11-13 01:39:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:18,482 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-11-13 01:39:18,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-11-13 01:39:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:39:18,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:18,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:39:18,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 01:39:18,491 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 01:39:18,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1908155012, now seen corresponding path program 1 times [2021-11-13 01:39:18,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:39:18,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073264847] [2021-11-13 01:39:18,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:18,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:39:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:39:18,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073264847] [2021-11-13 01:39:18,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073264847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:18,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:18,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:39:18,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76831127] [2021-11-13 01:39:18,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:18,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:39:18,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:39:18,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:39:18,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,550 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2021-11-13 01:39:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:18,606 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2021-11-13 01:39:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:39:18,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2021-11-13 01:39:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:18,608 INFO L225 Difference]: With dead ends: 52 [2021-11-13 01:39:18,608 INFO L226 Difference]: Without dead ends: 28 [2021-11-13 01:39:18,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,611 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.94ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:18,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 15 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 46.94ms Time] [2021-11-13 01:39:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-13 01:39:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-13 01:39:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-11-13 01:39:18,619 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2021-11-13 01:39:18,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:18,620 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-11-13 01:39:18,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2021-11-13 01:39:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-11-13 01:39:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:39:18,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:18,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:39:18,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 01:39:18,622 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 01:39:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:18,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1908149054, now seen corresponding path program 1 times [2021-11-13 01:39:18,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:39:18,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927129678] [2021-11-13 01:39:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:18,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:39:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,650 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:39:18,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927129678] [2021-11-13 01:39:18,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927129678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:18,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:18,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:39:18,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255560430] [2021-11-13 01:39:18,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:18,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:39:18,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:39:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:39:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,654 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2021-11-13 01:39:18,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:18,672 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-11-13 01:39:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:39:18,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2021-11-13 01:39:18,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:18,674 INFO L225 Difference]: With dead ends: 29 [2021-11-13 01:39:18,674 INFO L226 Difference]: Without dead ends: 27 [2021-11-13 01:39:18,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,677 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.74ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.43ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:18,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 13 Invalid, 11 Unknown, 0 Unchecked, 0.74ms Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 13.43ms Time] [2021-11-13 01:39:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-13 01:39:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-11-13 01:39:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-11-13 01:39:18,691 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2021-11-13 01:39:18,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:18,691 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-11-13 01:39:18,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2021-11-13 01:39:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-13 01:39:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:39:18,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:18,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:39:18,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 01:39:18,694 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 01:39:18,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1907662468, now seen corresponding path program 1 times [2021-11-13 01:39:18,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:39:18,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071247952] [2021-11-13 01:39:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:18,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:39:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,720 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:39:18,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071247952] [2021-11-13 01:39:18,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071247952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:18,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:18,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:39:18,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28937736] [2021-11-13 01:39:18,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:18,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:39:18,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:39:18,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:39:18,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,724 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-13 01:39:18,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:18,743 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2021-11-13 01:39:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:39:18,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2021-11-13 01:39:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:18,745 INFO L225 Difference]: With dead ends: 26 [2021-11-13 01:39:18,745 INFO L226 Difference]: Without dead ends: 25 [2021-11-13 01:39:18,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:39:18,748 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.95ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:18,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 13.95ms Time] [2021-11-13 01:39:18,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-13 01:39:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-13 01:39:18,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:18,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2021-11-13 01:39:18,756 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2021-11-13 01:39:18,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:18,756 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-11-13 01:39:18,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-13 01:39:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-11-13 01:39:18,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:39:18,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:18,758 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:18,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 01:39:18,759 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-13 01:39:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash -828796479, now seen corresponding path program 1 times [2021-11-13 01:39:18,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:39:18,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713024370] [2021-11-13 01:39:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:18,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:39:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:39:18,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713024370] [2021-11-13 01:39:18,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713024370] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:39:18,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825905039] [2021-11-13 01:39:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:18,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:39:18,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:39:18,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:39:18,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 01:39:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:18,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:39:18,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:39:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:18,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:39:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:39:19,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825905039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:19,080 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:39:19,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 8 [2021-11-13 01:39:19,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874443513] [2021-11-13 01:39:19,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:19,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:39:19,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:39:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:39:19,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:39:19,083 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:19,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:19,121 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-11-13 01:39:19,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:39:19,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 01:39:19,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:19,123 INFO L225 Difference]: With dead ends: 50 [2021-11-13 01:39:19,123 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:39:19,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:39:19,125 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.33ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:19,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 36 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [11 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 28.33ms Time] [2021-11-13 01:39:19,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:39:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:39:19,128 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) [2021-11-13 01:39:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:39:19,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-11-13 01:39:19,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:19,129 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:39:19,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:39:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:39:19,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:39:19,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2021-11-13 01:39:19,143 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2021-11-13 01:39:19,143 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2021-11-13 01:39:19,143 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2021-11-13 01:39:19,144 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2021-11-13 01:39:19,144 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2021-11-13 01:39:19,144 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2021-11-13 01:39:19,144 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2021-11-13 01:39:19,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:19,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:39:19,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:39:19,400 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-13 01:39:19,400 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:39:19,401 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-13 01:39:19,401 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-11-13 01:39:19,401 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 32) no Hoare annotation was computed. [2021-11-13 01:39:19,401 INFO L854 garLoopResultBuilder]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2021-11-13 01:39:19,401 INFO L858 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 33) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:39:19,402 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-11-13 01:39:19,403 INFO L858 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-11-13 01:39:19,403 INFO L858 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-11-13 01:39:19,403 INFO L858 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-11-13 01:39:19,403 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-13 01:39:19,403 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-13 01:39:19,403 INFO L858 garLoopResultBuilder]: For program point L20(lines 20 25) no Hoare annotation was computed. [2021-11-13 01:39:19,403 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-11-13 01:39:19,407 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:19,409 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:39:19,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:39:19 BoogieIcfgContainer [2021-11-13 01:39:19,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:39:19,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:39:19,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:39:19,430 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:39:19,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:39:17" (3/4) ... [2021-11-13 01:39:19,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:39:19,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-13 01:39:19,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 01:39:19,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:39:19,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:39:19,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:39:19,491 INFO L158 Benchmark]: Toolchain (without parser) took 2267.28ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 65.0MB in the beginning and 69.5MB in the end (delta: -4.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2021-11-13 01:39:19,491 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:39:19,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.38ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 79.9MB in the end (delta: -15.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:39:19,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 102.8MB. Free memory was 79.9MB in the beginning and 78.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:39:19,493 INFO L158 Benchmark]: Boogie Preprocessor took 21.01ms. Allocated memory is still 102.8MB. Free memory was 78.5MB in the beginning and 77.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:39:19,494 INFO L158 Benchmark]: RCFGBuilder took 311.12ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 67.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:39:19,494 INFO L158 Benchmark]: TraceAbstraction took 1594.01ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.3MB in the beginning and 72.3MB in the end (delta: -5.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-11-13 01:39:19,495 INFO L158 Benchmark]: Witness Printer took 66.91ms. Allocated memory is still 123.7MB. Free memory was 72.3MB in the beginning and 69.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:39:19,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.38ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 79.9MB in the end (delta: -15.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 102.8MB. Free memory was 79.9MB in the beginning and 78.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.01ms. Allocated memory is still 102.8MB. Free memory was 78.5MB in the beginning and 77.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.12ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 67.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1594.01ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.3MB in the beginning and 72.3MB in the end (delta: -5.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 66.91ms. Allocated memory is still 123.7MB. Free memory was 72.3MB in the beginning and 69.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: 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, 22 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 223.49ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 166.32ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 93 mSDtfsCounter, 97 mSolverCounterSat, 7.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 1 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 45 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 5/6 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 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:39:19,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35a9d6f-1d01-4607-8480-03437984b1d6/bin/utaipan-vmNK8stdcF/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