./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan --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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:33:50,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:33:50,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:33:50,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:33:50,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:33:50,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:33:50,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:33:50,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:33:50,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:33:50,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:33:50,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:33:50,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:33:50,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:33:50,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:33:50,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:33:50,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:33:50,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:33:50,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:33:50,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:33:50,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:33:50,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:33:50,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:33:50,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:33:50,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:33:50,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:33:50,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:33:50,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:33:50,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:33:50,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:33:50,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:33:50,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:33:50,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:33:50,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:33:50,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:33:50,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:33:50,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:33:50,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:33:50,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:33:50,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:33:50,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:33:50,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:33:50,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-03 12:33:50,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:33:50,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:33:50,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:33:50,854 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:33:50,854 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:33:50,854 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:33:50,855 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:33:50,855 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:33:50,863 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:33:50,863 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:33:50,864 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:33:50,864 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:33:50,864 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:33:50,864 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:33:50,867 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:33:50,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:33:50,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:33:50,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:33:50,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:33:50,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:33:50,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:33:50,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:33:50,869 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 12:33:50,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:33:50,869 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:33:50,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:33:50,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:33:50,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:33:50,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:33:50,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:33:50,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:33:50,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:33:50,879 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:33:50,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:33:50,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:33:50,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:33:50,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:33:50,880 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-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2020-12-03 12:33:51,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:33:51,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:33:51,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:33:51,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:33:51,216 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:33:51,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-12-03 12:33:51,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/data/99527f9a6/66213696294742e9bedfc59143b5b675/FLAG3468b3128 [2020-12-03 12:33:51,800 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:33:51,800 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-12-03 12:33:51,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/data/99527f9a6/66213696294742e9bedfc59143b5b675/FLAG3468b3128 [2020-12-03 12:33:52,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/data/99527f9a6/66213696294742e9bedfc59143b5b675 [2020-12-03 12:33:52,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:33:52,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:33:52,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:33:52,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:33:52,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:33:52,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@419358ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52, skipping insertion in model container [2020-12-03 12:33:52,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:33:52,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:33:52,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:33:52,354 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:33:52,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:33:52,397 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:33:52,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52 WrapperNode [2020-12-03 12:33:52,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:33:52,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:33:52,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:33:52,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:33:52,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:33:52,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:33:52,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:33:52,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:33:52,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... [2020-12-03 12:33:52,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:33:52,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:33:52,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:33:52,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:33:52,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:33:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:33:52,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:33:52,909 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:33:52,910 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-03 12:33:52,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:33:52 BoogieIcfgContainer [2020-12-03 12:33:52,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:33:52,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:33:52,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:33:52,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:33:52,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:33:52" (1/3) ... [2020-12-03 12:33:52,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62aeb920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:33:52, skipping insertion in model container [2020-12-03 12:33:52,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:33:52" (2/3) ... [2020-12-03 12:33:52,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62aeb920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:33:52, skipping insertion in model container [2020-12-03 12:33:52,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:33:52" (3/3) ... [2020-12-03 12:33:52,942 INFO L111 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2020-12-03 12:33:52,976 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:33:52,979 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-03 12:33:53,001 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-03 12:33:53,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:33:53,042 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:33:53,042 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:33:53,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:33:53,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:33:53,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:33:53,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:33:53,043 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:33:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-12-03 12:33:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 12:33:53,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:33:53,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-03 12:33:53,067 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:33:53,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:33:53,076 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2020-12-03 12:33:53,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:33:53,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838664432] [2020-12-03 12:33:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:33:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:53,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838664432] [2020-12-03 12:33:53,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:33:53,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:33:53,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495218625] [2020-12-03 12:33:53,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:33:53,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:33:53,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:33:53,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:33:53,341 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2020-12-03 12:33:53,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:33:53,423 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2020-12-03 12:33:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:33:53,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-03 12:33:53,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:33:53,436 INFO L225 Difference]: With dead ends: 33 [2020-12-03 12:33:53,436 INFO L226 Difference]: Without dead ends: 30 [2020-12-03 12:33:53,439 INFO L677 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 [2020-12-03 12:33:53,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-03 12:33:53,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-12-03 12:33:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-03 12:33:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-12-03 12:33:53,479 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2020-12-03 12:33:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:33:53,480 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-12-03 12:33:53,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:33:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-12-03 12:33:53,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 12:33:53,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:33:53,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-03 12:33:53,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:33:53,482 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:33:53,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:33:53,484 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2020-12-03 12:33:53,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:33:53,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678912191] [2020-12-03 12:33:53,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:33:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:53,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678912191] [2020-12-03 12:33:53,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:33:53,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:33:53,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956840336] [2020-12-03 12:33:53,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:33:53,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:33:53,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:33:53,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:33:53,519 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 3 states. [2020-12-03 12:33:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:33:53,564 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-12-03 12:33:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:33:53,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-03 12:33:53,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:33:53,566 INFO L225 Difference]: With dead ends: 28 [2020-12-03 12:33:53,567 INFO L226 Difference]: Without dead ends: 26 [2020-12-03 12:33:53,568 INFO L677 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 [2020-12-03 12:33:53,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-03 12:33:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-03 12:33:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-03 12:33:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-12-03 12:33:53,595 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2020-12-03 12:33:53,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:33:53,597 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-12-03 12:33:53,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:33:53,597 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-12-03 12:33:53,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 12:33:53,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:33:53,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-03 12:33:53,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:33:53,600 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:33:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:33:53,602 INFO L82 PathProgramCache]: Analyzing trace with hash 29879476, now seen corresponding path program 1 times [2020-12-03 12:33:53,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:33:53,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751360409] [2020-12-03 12:33:53,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:33:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:53,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751360409] [2020-12-03 12:33:53,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:33:53,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:33:53,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927594621] [2020-12-03 12:33:53,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:33:53,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:33:53,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:33:53,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:33:53,647 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 3 states. [2020-12-03 12:33:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:33:53,673 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-12-03 12:33:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:33:53,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-03 12:33:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:33:53,675 INFO L225 Difference]: With dead ends: 26 [2020-12-03 12:33:53,675 INFO L226 Difference]: Without dead ends: 25 [2020-12-03 12:33:53,676 INFO L677 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 [2020-12-03 12:33:53,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-03 12:33:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-03 12:33:53,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-03 12:33:53,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-12-03 12:33:53,681 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2020-12-03 12:33:53,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:33:53,682 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-12-03 12:33:53,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:33:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-12-03 12:33:53,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:33:53,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:33:53,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:33:53,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:33:53,683 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:33:53,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:33:53,684 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2020-12-03 12:33:53,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:33:53,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42205480] [2020-12-03 12:33:53,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:33:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:53,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:53,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42205480] [2020-12-03 12:33:53,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:33:53,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:33:53,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638126565] [2020-12-03 12:33:53,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:33:53,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:33:53,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:33:53,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:33:53,738 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 3 states. [2020-12-03 12:33:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:33:53,788 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-12-03 12:33:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:33:53,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:33:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:33:53,790 INFO L225 Difference]: With dead ends: 52 [2020-12-03 12:33:53,790 INFO L226 Difference]: Without dead ends: 28 [2020-12-03 12:33:53,791 INFO L677 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 [2020-12-03 12:33:53,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-03 12:33:53,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-03 12:33:53,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-03 12:33:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-12-03 12:33:53,798 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2020-12-03 12:33:53,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:33:53,799 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-12-03 12:33:53,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:33:53,799 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-12-03 12:33:53,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:33:53,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:33:53,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:33:53,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:33:53,801 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:33:53,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:33:53,802 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2020-12-03 12:33:53,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:33:53,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375368308] [2020-12-03 12:33:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:33:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:53,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375368308] [2020-12-03 12:33:53,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:33:53,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:33:53,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853834626] [2020-12-03 12:33:53,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:33:53,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:33:53,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:33:53,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:33:53,830 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 3 states. [2020-12-03 12:33:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:33:53,850 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2020-12-03 12:33:53,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:33:53,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:33:53,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:33:53,852 INFO L225 Difference]: With dead ends: 29 [2020-12-03 12:33:53,852 INFO L226 Difference]: Without dead ends: 27 [2020-12-03 12:33:53,852 INFO L677 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 [2020-12-03 12:33:53,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-03 12:33:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-12-03 12:33:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-03 12:33:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-12-03 12:33:53,858 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2020-12-03 12:33:53,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:33:53,859 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-12-03 12:33:53,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:33:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-12-03 12:33:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:33:53,860 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:33:53,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:33:53,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:33:53,861 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:33:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:33:53,862 INFO L82 PathProgramCache]: Analyzing trace with hash 926263822, now seen corresponding path program 1 times [2020-12-03 12:33:53,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:33:53,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781925450] [2020-12-03 12:33:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:33:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:53,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781925450] [2020-12-03 12:33:53,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:33:53,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:33:53,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364743654] [2020-12-03 12:33:53,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:33:53,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:33:53,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:33:53,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:33:53,890 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2020-12-03 12:33:53,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:33:53,918 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2020-12-03 12:33:53,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:33:53,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:33:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:33:53,920 INFO L225 Difference]: With dead ends: 26 [2020-12-03 12:33:53,920 INFO L226 Difference]: Without dead ends: 25 [2020-12-03 12:33:53,920 INFO L677 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 [2020-12-03 12:33:53,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-03 12:33:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-03 12:33:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-03 12:33:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2020-12-03 12:33:53,925 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2020-12-03 12:33:53,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:33:53,925 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-12-03 12:33:53,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:33:53,926 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-12-03 12:33:53,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:33:53,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:33:53,926 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:33:53,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:33:53,927 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:33:53,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:33:53,928 INFO L82 PathProgramCache]: Analyzing trace with hash -248985325, now seen corresponding path program 1 times [2020-12-03 12:33:53,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:33:53,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122249579] [2020-12-03 12:33:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:33:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:53,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122249579] [2020-12-03 12:33:53,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014738330] [2020-12-03 12:33:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:33:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:33:54,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-03 12:33:54,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:33:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:54,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:33:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:33:54,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-03 12:33:54,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 8 [2020-12-03 12:33:54,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118816305] [2020-12-03 12:33:54,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:33:54,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:33:54,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:33:54,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:33:54,111 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 6 states. [2020-12-03 12:33:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:33:54,157 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-12-03 12:33:54,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:33:54,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-03 12:33:54,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:33:54,158 INFO L225 Difference]: With dead ends: 50 [2020-12-03 12:33:54,158 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:33:54,159 INFO L677 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 [2020-12-03 12:33:54,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:33:54,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:33:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:33:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:33:54,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-03 12:33:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:33:54,160 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:33:54,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:33:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:33:54,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:33:54,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-03 12:33:54,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:33:54,426 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-12-03 12:33:54,426 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:33:54,426 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-03 12:33:54,427 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2020-12-03 12:33:54,427 INFO L262 CegarLoopResult]: For program point L27(lines 27 32) no Hoare annotation was computed. [2020-12-03 12:33:54,427 INFO L258 CegarLoopResult]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-12-03 12:33:54,427 INFO L262 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-12-03 12:33:54,427 INFO L262 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-12-03 12:33:54,427 INFO L262 CegarLoopResult]: For program point L19(lines 19 33) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-12-03 12:33:54,428 INFO L262 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-12-03 12:33:54,429 INFO L262 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-12-03 12:33:54,429 INFO L262 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-12-03 12:33:54,429 INFO L262 CegarLoopResult]: For program point L20(lines 20 25) no Hoare annotation was computed. [2020-12-03 12:33:54,429 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2020-12-03 12:33:54,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:33:54 BoogieIcfgContainer [2020-12-03 12:33:54,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:33:54,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:33:54,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:33:54,445 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:33:54,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:33:52" (3/4) ... [2020-12-03 12:33:54,448 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:33:54,458 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 12:33:54,458 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-03 12:33:54,458 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:33:54,499 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b833b93e-9f08-4f8b-bc88-f5fbcbe27820/bin/utaipan/witness.graphml [2020-12-03 12:33:54,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:33:54,501 INFO L168 Benchmark]: Toolchain (without parser) took 2342.63 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 63.0 MB in the beginning and 90.2 MB in the end (delta: -27.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:33:54,502 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 98.6 MB. Free memory is still 78.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:33:54,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.42 ms. Allocated memory is still 98.6 MB. Free memory was 62.8 MB in the beginning and 76.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:33:54,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.27 ms. Allocated memory is still 98.6 MB. Free memory was 76.4 MB in the beginning and 75.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:33:54,503 INFO L168 Benchmark]: Boogie Preprocessor took 22.08 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 74.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:33:54,504 INFO L168 Benchmark]: RCFGBuilder took 451.62 ms. Allocated memory is still 98.6 MB. Free memory was 74.0 MB in the beginning and 61.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:33:54,504 INFO L168 Benchmark]: TraceAbstraction took 1516.46 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.1 MB in the beginning and 93.4 MB in the end (delta: -32.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:33:54,505 INFO L168 Benchmark]: Witness Printer took 55.31 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 90.2 MB in the end (delta: 3.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:33:54,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 98.6 MB. Free memory is still 78.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 239.42 ms. Allocated memory is still 98.6 MB. Free memory was 62.8 MB in the beginning and 76.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.27 ms. Allocated memory is still 98.6 MB. Free memory was 76.4 MB in the beginning and 75.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.08 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 74.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 451.62 ms. Allocated memory is still 98.6 MB. Free memory was 74.0 MB in the beginning and 61.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1516.46 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.1 MB in the beginning and 93.4 MB in the end (delta: -32.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * Witness Printer took 55.31 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 90.2 MB in the end (delta: 3.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: 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: 30]: 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: 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 83 SDslu, 27 SDs, 0 SdLazy, 96 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 1 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...