./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/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 b61f9d11a7993733a89da24850eba50014a42dab .................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 16:00:41,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:00:41,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:00:41,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:00:41,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:00:41,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:00:41,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:00:41,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:00:41,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:00:41,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:00:41,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:00:41,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:00:41,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:00:41,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:00:41,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:00:41,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:00:41,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:00:41,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:00:41,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:00:41,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:00:41,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:00:41,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:00:41,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:00:41,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:00:41,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:00:41,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:00:41,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:00:41,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:00:41,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:00:41,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:00:41,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:00:41,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:00:41,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:00:41,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:00:41,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:00:41,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:00:41,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:00:41,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:00:41,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:00:41,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:00:41,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:00:41,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-12-07 16:00:41,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:00:41,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:00:41,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:00:41,947 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:00:41,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:00:41,947 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:00:41,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:00:41,947 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:00:41,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:00:41,948 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:00:41,948 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:00:41,948 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:00:41,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:00:41,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:00:41,948 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:00:41,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:00:41,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:00:41,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:00:41,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:00:41,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:00:41,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:00:41,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:00:41,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:00:41,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:00:41,951 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:00:41,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:00:41,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:00:41,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:00:41,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:00:41,951 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d210e746-2cfb-4482-a469-8b34bd7b51a3/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 -> b61f9d11a7993733a89da24850eba50014a42dab [2019-12-07 16:00:42,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:00:42,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:00:42,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:00:42,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:00:42,065 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:00:42,065 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2019-12-07 16:00:42,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/data/b4a2383d2/5475c1d276694a0c91a310f6fbb6dba1/FLAG310de5331 [2019-12-07 16:00:42,420 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:00:42,421 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2019-12-07 16:00:42,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/data/b4a2383d2/5475c1d276694a0c91a310f6fbb6dba1/FLAG310de5331 [2019-12-07 16:00:42,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/data/b4a2383d2/5475c1d276694a0c91a310f6fbb6dba1 [2019-12-07 16:00:42,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:00:42,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:00:42,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:00:42,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:00:42,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:00:42,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d2714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42, skipping insertion in model container [2019-12-07 16:00:42,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:00:42,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:00:42,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:00:42,564 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:00:42,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:00:42,619 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:00:42,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42 WrapperNode [2019-12-07 16:00:42,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:00:42,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:00:42,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:00:42,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:00:42,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:00:42,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:00:42,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:00:42,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:00:42,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... [2019-12-07 16:00:42,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:00:42,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:00:42,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:00:42,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:00:42,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/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 [2019-12-07 16:00:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:00:42,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:00:42,801 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:00:42,802 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:00:42,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:00:42 BoogieIcfgContainer [2019-12-07 16:00:42,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:00:42,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:00:42,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:00:42,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:00:42,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:00:42" (1/3) ... [2019-12-07 16:00:42,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a908b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:00:42, skipping insertion in model container [2019-12-07 16:00:42,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:00:42" (2/3) ... [2019-12-07 16:00:42,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a908b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:00:42, skipping insertion in model container [2019-12-07 16:00:42,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:00:42" (3/3) ... [2019-12-07 16:00:42,808 INFO L109 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2019-12-07 16:00:42,815 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:00:42,818 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 16:00:42,826 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 16:00:42,841 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:00:42,841 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:00:42,841 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:00:42,841 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:00:42,841 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:00:42,841 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:00:42,841 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:00:42,842 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:00:42,851 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 16:00:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 16:00:42,854 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:00:42,854 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 16:00:42,855 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:00:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:00:42,858 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-12-07 16:00:42,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:00:42,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708608043] [2019-12-07 16:00:42,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:00:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:00:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:00:42,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708608043] [2019-12-07 16:00:42,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:00:42,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:00:42,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717157826] [2019-12-07 16:00:42,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:00:42,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:00:42,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:00:42,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:00:42,976 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2019-12-07 16:00:43,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:00:43,010 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-12-07 16:00:43,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:00:43,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-12-07 16:00:43,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:00:43,017 INFO L225 Difference]: With dead ends: 11 [2019-12-07 16:00:43,017 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 16:00:43,019 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:00:43,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 16:00:43,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 16:00:43,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 16:00:43,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-07 16:00:43,040 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3 [2019-12-07 16:00:43,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:00:43,040 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-07 16:00:43,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:00:43,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-07 16:00:43,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 16:00:43,041 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:00:43,041 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 16:00:43,041 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:00:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:00:43,041 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-12-07 16:00:43,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:00:43,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195229703] [2019-12-07 16:00:43,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:00:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:00:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:00:43,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195229703] [2019-12-07 16:00:43,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:00:43,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:00:43,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161086470] [2019-12-07 16:00:43,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:00:43,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:00:43,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:00:43,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:00:43,066 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-12-07 16:00:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:00:43,089 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-12-07 16:00:43,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:00:43,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 16:00:43,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:00:43,090 INFO L225 Difference]: With dead ends: 9 [2019-12-07 16:00:43,090 INFO L226 Difference]: Without dead ends: 8 [2019-12-07 16:00:43,091 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:00:43,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-12-07 16:00:43,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-12-07 16:00:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 16:00:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 16:00:43,093 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-12-07 16:00:43,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:00:43,093 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 16:00:43,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:00:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 16:00:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 16:00:43,093 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:00:43,093 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 16:00:43,094 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:00:43,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:00:43,094 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2019-12-07 16:00:43,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:00:43,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974783507] [2019-12-07 16:00:43,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:00:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:00:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:00:43,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974783507] [2019-12-07 16:00:43,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:00:43,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:00:43,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829089912] [2019-12-07 16:00:43,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:00:43,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:00:43,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:00:43,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:00:43,116 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2019-12-07 16:00:43,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:00:43,126 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-12-07 16:00:43,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:00:43,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 16:00:43,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:00:43,127 INFO L225 Difference]: With dead ends: 9 [2019-12-07 16:00:43,127 INFO L226 Difference]: Without dead ends: 8 [2019-12-07 16:00:43,127 INFO L630 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 [2019-12-07 16:00:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-12-07 16:00:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-12-07 16:00:43,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 16:00:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-07 16:00:43,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-12-07 16:00:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:00:43,129 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-12-07 16:00:43,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:00:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-07 16:00:43,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:00:43,130 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:00:43,130 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:00:43,130 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:00:43,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:00:43,130 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2019-12-07 16:00:43,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:00:43,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557622391] [2019-12-07 16:00:43,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:00:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:00:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:00:43,152 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 16:00:43,152 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:00:43,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:00:43 BoogieIcfgContainer [2019-12-07 16:00:43,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:00:43,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:00:43,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:00:43,163 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:00:43,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:00:42" (3/4) ... [2019-12-07 16:00:43,165 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:00:43,189 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d210e746-2cfb-4482-a469-8b34bd7b51a3/bin/utaipan/witness.graphml [2019-12-07 16:00:43,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:00:43,191 INFO L168 Benchmark]: Toolchain (without parser) took 753.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -105.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:00:43,191 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:00:43,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:00:43,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:00:43,192 INFO L168 Benchmark]: Boogie Preprocessor took 11.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:00:43,192 INFO L168 Benchmark]: RCFGBuilder took 149.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:00:43,193 INFO L168 Benchmark]: TraceAbstraction took 359.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:00:43,193 INFO L168 Benchmark]: Witness Printer took 26.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:00:43,195 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 359.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 26.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x > 0 && y < 0 [L27] EXPR x + y [L27] x = x + y [L28] y - 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 17 SDslu, 0 SDs, 0 SdLazy, 31 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, 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, 1 StatesRemovedByMinimization, 1 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, 131 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...