./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.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_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/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 263033368f66896d5c79f69cd87eb218f4523caf ............................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 17:28:34,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:28:34,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:28:34,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:28:34,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:28:34,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:28:34,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:28:34,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:28:34,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:28:34,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:28:34,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:28:34,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:28:34,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:28:34,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:28:34,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:28:34,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:28:34,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:28:34,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:28:34,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:28:34,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:28:34,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:28:34,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:28:34,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:28:34,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:28:34,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:28:34,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:28:34,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:28:34,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:28:34,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:28:34,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:28:34,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:28:34,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:28:34,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:28:34,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:28:34,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:28:34,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:28:34,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:28:34,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:28:34,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:28:34,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:28:34,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:28:34,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 17:28:34,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:28:34,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:28:34,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:28:34,142 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:28:34,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:28:34,142 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:28:34,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 17:28:34,143 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:28:34,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:28:34,143 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 17:28:34,143 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 17:28:34,143 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:28:34,144 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 17:28:34,144 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 17:28:34,144 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 17:28:34,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:28:34,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 17:28:34,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 17:28:34,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:28:34,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:28:34,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:28:34,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:28:34,146 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 17:28:34,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:28:34,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:28:34,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:28:34,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:28:34,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:28:34,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:28:34,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:28:34,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:28:34,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:28:34,147 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 17:28:34,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 17:28:34,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:28:34,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:28:34,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:28:34,148 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_b89d22e8-bfbc-452a-a209-b67aedf2f88b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 263033368f66896d5c79f69cd87eb218f4523caf [2020-12-09 17:28:34,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:28:34,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:28:34,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:28:34,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:28:34,353 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:28:34,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c [2020-12-09 17:28:34,396 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/data/6e5c83ee8/fc9dddcdf0524a18a10145f3960184fe/FLAGdc0de07c6 [2020-12-09 17:28:34,747 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:28:34,748 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c [2020-12-09 17:28:34,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/data/6e5c83ee8/fc9dddcdf0524a18a10145f3960184fe/FLAGdc0de07c6 [2020-12-09 17:28:34,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/data/6e5c83ee8/fc9dddcdf0524a18a10145f3960184fe [2020-12-09 17:28:34,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:28:34,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:28:34,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:28:34,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:28:34,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:28:34,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45133972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34, skipping insertion in model container [2020-12-09 17:28:34,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:28:34,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:28:34,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:28:34,894 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:28:34,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:28:34,913 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:28:34,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34 WrapperNode [2020-12-09 17:28:34,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:28:34,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:28:34,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:28:34,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:28:34,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:28:34,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:28:34,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:28:34,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:28:34,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... [2020-12-09 17:28:34,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:28:34,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:28:34,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:28:34,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:28:34,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/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 [2020-12-09 17:28:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:28:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:28:35,138 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:28:35,139 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 17:28:35,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:28:35 BoogieIcfgContainer [2020-12-09 17:28:35,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:28:35,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:28:35,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:28:35,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:28:35,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:28:34" (1/3) ... [2020-12-09 17:28:35,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417c2c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:28:35, skipping insertion in model container [2020-12-09 17:28:35,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:28:34" (2/3) ... [2020-12-09 17:28:35,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417c2c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:28:35, skipping insertion in model container [2020-12-09 17:28:35,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:28:35" (3/3) ... [2020-12-09 17:28:35,149 INFO L111 eAbstractionObserver]: Analyzing ICFG ColonSipma-TACAS2001-Fig1.c [2020-12-09 17:28:35,162 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:28:35,164 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 17:28:35,171 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 17:28:35,188 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:28:35,188 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:28:35,188 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:28:35,188 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:28:35,188 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:28:35,188 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:28:35,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:28:35,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:28:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-09 17:28:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 17:28:35,200 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:28:35,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 17:28:35,201 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 17:28:35,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:28:35,205 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-12-09 17:28:35,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:28:35,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912525918] [2020-12-09 17:28:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:28:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:28:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:28:35,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912525918] [2020-12-09 17:28:35,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:28:35,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:28:35,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106770704] [2020-12-09 17:28:35,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:28:35,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:28:35,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:28:35,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:28:35,337 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-12-09 17:28:35,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:28:35,355 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-12-09 17:28:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:28:35,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 17:28:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:28:35,362 INFO L225 Difference]: With dead ends: 13 [2020-12-09 17:28:35,362 INFO L226 Difference]: Without dead ends: 10 [2020-12-09 17:28:35,364 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 [2020-12-09 17:28:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-09 17:28:35,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-12-09 17:28:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 17:28:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-09 17:28:35,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3 [2020-12-09 17:28:35,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:28:35,385 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-09 17:28:35,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:28:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-09 17:28:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 17:28:35,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:28:35,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 17:28:35,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 17:28:35,386 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 17:28:35,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:28:35,387 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-12-09 17:28:35,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:28:35,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641667435] [2020-12-09 17:28:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:28:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:28:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:28:35,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641667435] [2020-12-09 17:28:35,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:28:35,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:28:35,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349371639] [2020-12-09 17:28:35,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:28:35,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:28:35,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:28:35,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:28:35,415 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-12-09 17:28:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:28:35,432 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-12-09 17:28:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:28:35,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-09 17:28:35,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:28:35,433 INFO L225 Difference]: With dead ends: 18 [2020-12-09 17:28:35,433 INFO L226 Difference]: Without dead ends: 17 [2020-12-09 17:28:35,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:28:35,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-09 17:28:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-12-09 17:28:35,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 17:28:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-12-09 17:28:35,442 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 4 [2020-12-09 17:28:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:28:35,442 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-12-09 17:28:35,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:28:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-12-09 17:28:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 17:28:35,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:28:35,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 17:28:35,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 17:28:35,443 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 17:28:35,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:28:35,443 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-12-09 17:28:35,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:28:35,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633269767] [2020-12-09 17:28:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:28:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:28:35,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:28:35,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633269767] [2020-12-09 17:28:35,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:28:35,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 17:28:35,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819495512] [2020-12-09 17:28:35,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:28:35,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:28:35,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:28:35,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:28:35,464 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2020-12-09 17:28:35,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:28:35,472 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-12-09 17:28:35,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:28:35,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 17:28:35,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:28:35,473 INFO L225 Difference]: With dead ends: 12 [2020-12-09 17:28:35,473 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 17:28:35,474 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 [2020-12-09 17:28:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 17:28:35,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-09 17:28:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 17:28:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-09 17:28:35,477 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2020-12-09 17:28:35,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:28:35,477 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-12-09 17:28:35,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:28:35,477 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-09 17:28:35,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 17:28:35,477 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:28:35,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 17:28:35,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 17:28:35,478 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 17:28:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:28:35,479 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-12-09 17:28:35,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:28:35,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082366499] [2020-12-09 17:28:35,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:28:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:28:35,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:28:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:28:35,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:28:35,513 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 17:28:35,514 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 17:28:35,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 17:28:35,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:28:35 BoogieIcfgContainer [2020-12-09 17:28:35,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:28:35,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:28:35,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:28:35,528 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:28:35,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:28:35" (3/4) ... [2020-12-09 17:28:35,530 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 17:28:35,553 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b89d22e8-bfbc-452a-a209-b67aedf2f88b/bin/utaipan/witness.graphml [2020-12-09 17:28:35,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:28:35,554 INFO L168 Benchmark]: Toolchain (without parser) took 785.86 ms. Allocated memory is still 98.6 MB. Free memory was 62.5 MB in the beginning and 67.4 MB in the end (delta: -4.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:28:35,555 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory was 78.6 MB in the beginning and 78.5 MB in the end (delta: 72.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:28:35,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.19 ms. Allocated memory is still 98.6 MB. Free memory was 62.4 MB in the beginning and 76.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 17:28:35,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.43 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 75.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:28:35,556 INFO L168 Benchmark]: Boogie Preprocessor took 13.63 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 74.1 MB in the end (delta: 923.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:28:35,557 INFO L168 Benchmark]: RCFGBuilder took 190.17 ms. Allocated memory is still 98.6 MB. Free memory was 74.1 MB in the beginning and 63.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:28:35,557 INFO L168 Benchmark]: TraceAbstraction took 384.89 ms. Allocated memory is still 98.6 MB. Free memory was 62.8 MB in the beginning and 69.1 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:28:35,557 INFO L168 Benchmark]: Witness Printer took 25.35 ms. Allocated memory is still 98.6 MB. Free memory was 69.1 MB in the beginning and 67.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 17:28:35,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory was 78.6 MB in the beginning and 78.5 MB in the end (delta: 72.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 144.19 ms. Allocated memory is still 98.6 MB. Free memory was 62.4 MB in the beginning and 76.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.43 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 75.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.63 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 74.1 MB in the end (delta: 923.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 190.17 ms. Allocated memory is still 98.6 MB. Free memory was 74.1 MB in the beginning and 63.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 384.89 ms. Allocated memory is still 98.6 MB. Free memory was 62.8 MB in the beginning and 69.1 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 25.35 ms. Allocated memory is still 98.6 MB. Free memory was 69.1 MB in the beginning and 67.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int k, i, j, tmp; [L16] k = __VERIFIER_nondet_int() [L17] i = __VERIFIER_nondet_int() [L18] j = __VERIFIER_nondet_int() [L19] COND TRUE i <= 100 && j <= k [L20] tmp = i [L21] i = j [L22] EXPR tmp + 1 [L22] j = tmp + 1 [L23] k - 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 16 SDslu, 10 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...