./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI --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 8920989884f6f43fe034219867b1db3db8f5287c ....................................................................................................................................................................................................................................................................................................................... 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 [2021-10-11 02:28:31,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:31,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:31,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:31,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:31,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:31,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:31,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:31,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:31,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:31,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:31,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:31,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:31,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:31,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:31,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:31,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:31,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:31,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:31,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:31,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:31,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:31,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:31,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:31,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:31,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:31,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:31,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:31,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:31,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:31,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:31,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:31,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:31,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:31,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:31,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:31,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:31,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:31,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:31,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:31,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:31,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:28:31,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:31,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:31,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:31,684 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:31,684 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:31,685 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:31,685 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:31,685 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:31,685 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:31,685 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:31,687 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:31,687 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:31,687 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:31,688 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:31,688 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:31,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:31,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:28:31,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:31,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:31,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:31,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:31,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:31,691 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:28:31,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:31,691 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:31,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:31,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:31,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:31,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:31,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:31,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:31,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:31,695 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:31,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:31,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:31,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:31,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:31,696 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8920989884f6f43fe034219867b1db3db8f5287c [2021-10-11 02:28:32,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:32,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:32,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:32,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:32,139 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:32,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2021-10-11 02:28:32,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/data/505ab086e/ab35ff9ffaea414882987b4075fce14d/FLAG31d6c71b2 [2021-10-11 02:28:32,823 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:32,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2021-10-11 02:28:32,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/data/505ab086e/ab35ff9ffaea414882987b4075fce14d/FLAG31d6c71b2 [2021-10-11 02:28:32,860 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/data/505ab086e/ab35ff9ffaea414882987b4075fce14d [2021-10-11 02:28:32,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:32,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:32,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:32,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:32,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:32,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:32" (1/1) ... [2021-10-11 02:28:32,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d8a9a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:32, skipping insertion in model container [2021-10-11 02:28:32,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:32" (1/1) ... [2021-10-11 02:28:32,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:32,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:33,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:33,175 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:33,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:33,200 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:33,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33 WrapperNode [2021-10-11 02:28:33,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:33,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:33,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:33,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:33,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:33,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:33,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:33,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:33,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... [2021-10-11 02:28:33,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:33,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:33,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:33,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:33,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:33,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:33,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:33,740 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:28:33,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:33 BoogieIcfgContainer [2021-10-11 02:28:33,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:33,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:33,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:33,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:33,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:32" (1/3) ... [2021-10-11 02:28:33,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6298bac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:33, skipping insertion in model container [2021-10-11 02:28:33,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:33" (2/3) ... [2021-10-11 02:28:33,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6298bac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:33, skipping insertion in model container [2021-10-11 02:28:33,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:33" (3/3) ... [2021-10-11 02:28:33,751 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2021-10-11 02:28:33,776 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:33,779 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2021-10-11 02:28:33,789 INFO L253 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-10-11 02:28:33,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:33,833 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:33,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:33,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:33,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:33,834 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:33,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:33,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:33,853 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2021-10-11 02:28:33,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:28:33,857 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:33,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:28:33,859 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:33,864 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-11 02:28:33,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:33,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316769011] [2021-10-11 02:28:33,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:34,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316769011] [2021-10-11 02:28:34,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:34,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:28:34,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130716325] [2021-10-11 02:28:34,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:34,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:34,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:34,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:34,061 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2021-10-11 02:28:34,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:34,212 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2021-10-11 02:28:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:34,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:28:34,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:34,224 INFO L225 Difference]: With dead ends: 89 [2021-10-11 02:28:34,225 INFO L226 Difference]: Without dead ends: 44 [2021-10-11 02:28:34,232 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 [2021-10-11 02:28:34,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-11 02:28:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2021-10-11 02:28:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-10-11 02:28:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-11 02:28:34,278 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 3 [2021-10-11 02:28:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:34,278 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-11 02:28:34,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-11 02:28:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:28:34,279 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:34,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:28:34,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:28:34,282 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:34,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:34,285 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-10-11 02:28:34,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:34,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203659475] [2021-10-11 02:28:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:34,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203659475] [2021-10-11 02:28:34,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:34,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:34,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960284500] [2021-10-11 02:28:34,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:34,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:34,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:34,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:34,332 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 3 states. [2021-10-11 02:28:34,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:34,402 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-10-11 02:28:34,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:34,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:28:34,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:34,404 INFO L225 Difference]: With dead ends: 42 [2021-10-11 02:28:34,405 INFO L226 Difference]: Without dead ends: 41 [2021-10-11 02:28:34,405 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 [2021-10-11 02:28:34,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-11 02:28:34,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-11 02:28:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-10-11 02:28:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2021-10-11 02:28:34,417 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 4 [2021-10-11 02:28:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:34,418 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2021-10-11 02:28:34,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2021-10-11 02:28:34,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:28:34,420 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:34,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:28:34,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:28:34,422 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:34,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:34,424 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-10-11 02:28:34,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:34,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224267040] [2021-10-11 02:28:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:28:34,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:28:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:28:34,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:28:34,474 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:28:34,477 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:28:34,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:28:34,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:34 BoogieIcfgContainer [2021-10-11 02:28:34,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:34,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:34,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:34,498 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:34,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:33" (3/4) ... [2021-10-11 02:28:34,501 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:28:34,541 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37f1b96-bc29-4de2-baa0-f2f27064198a/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:34,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:34,544 INFO L168 Benchmark]: Toolchain (without parser) took 1673.59 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 50.2 MB in the beginning and 69.5 MB in the end (delta: -19.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:34,549 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 66.5 MB in the beginning and 66.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:34,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.07 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 50.0 MB in the beginning and 94.6 MB in the end (delta: -44.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:34,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.31 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:34,551 INFO L168 Benchmark]: Boogie Preprocessor took 35.16 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 92.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:34,551 INFO L168 Benchmark]: RCFGBuilder took 449.00 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 74.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:34,552 INFO L168 Benchmark]: TraceAbstraction took 752.84 ms. Allocated memory is still 117.4 MB. Free memory was 73.6 MB in the beginning and 71.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:34,552 INFO L168 Benchmark]: Witness Printer took 43.71 ms. Allocated memory is still 117.4 MB. Free memory was 71.1 MB in the beginning and 69.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:34,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 66.5 MB in the beginning and 66.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.07 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 50.0 MB in the beginning and 94.6 MB in the end (delta: -44.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.31 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.16 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 92.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 449.00 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 74.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 752.84 ms. Allocated memory is still 117.4 MB. Free memory was 73.6 MB in the beginning and 71.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. * Witness Printer took 43.71 ms. Allocated memory is still 117.4 MB. Free memory was 71.1 MB in the beginning and 69.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 [L18] EXPR x - 1 [L18] x = x - 1 [L19] y + x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 20 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 36 SDslu, 20 SDs, 0 SdLazy, 54 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...