./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.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_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/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 9f16087843ad8a83da47d6a6a4e9d674fa79150d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:08:35,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 12:08:35,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 12:08:35,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 12:08:35,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 12:08:35,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 12:08:35,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 12:08:35,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 12:08:35,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 12:08:35,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 12:08:35,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 12:08:35,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 12:08:35,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 12:08:35,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 12:08:35,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 12:08:35,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 12:08:35,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 12:08:35,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 12:08:35,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 12:08:35,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 12:08:35,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 12:08:35,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 12:08:35,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 12:08:35,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 12:08:35,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 12:08:35,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 12:08:35,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 12:08:35,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 12:08:35,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 12:08:35,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 12:08:35,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 12:08:35,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 12:08:35,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 12:08:35,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 12:08:35,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 12:08:35,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 12:08:35,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 12:08:35,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 12:08:35,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 12:08:35,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 12:08:35,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 12:08:35,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 12:08:35,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 12:08:35,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 12:08:35,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 12:08:35,388 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 12:08:35,388 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 12:08:35,389 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 12:08:35,389 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 12:08:35,389 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 12:08:35,389 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 12:08:35,389 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 12:08:35,389 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 12:08:35,390 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 12:08:35,390 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 12:08:35,390 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 12:08:35,390 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 12:08:35,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 12:08:35,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 12:08:35,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 12:08:35,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 12:08:35,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 12:08:35,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 12:08:35,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 12:08:35,392 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 12:08:35,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 12:08:35,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 12:08:35,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 12:08:35,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 12:08:35,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 12:08:35,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:08:35,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 12:08:35,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 12:08:35,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 12:08:35,394 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 12:08:35,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 12:08:35,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 12:08:35,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 12:08:35,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 12:08:35,395 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_5b776471-0bbc-4927-8e77-045f175aa366/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f16087843ad8a83da47d6a6a4e9d674fa79150d [2020-12-09 12:08:35,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 12:08:35,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 12:08:35,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 12:08:35,621 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 12:08:35,622 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 12:08:35,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2020-12-09 12:08:35,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/data/58444127a/5758dc181fa74bbfb3f87eea2bba6a03/FLAG013b2dc4b [2020-12-09 12:08:36,017 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 12:08:36,017 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2020-12-09 12:08:36,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/data/58444127a/5758dc181fa74bbfb3f87eea2bba6a03/FLAG013b2dc4b [2020-12-09 12:08:36,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/data/58444127a/5758dc181fa74bbfb3f87eea2bba6a03 [2020-12-09 12:08:36,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 12:08:36,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 12:08:36,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 12:08:36,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 12:08:36,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 12:08:36,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8f780a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36, skipping insertion in model container [2020-12-09 12:08:36,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 12:08:36,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 12:08:36,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:08:36,165 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 12:08:36,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:08:36,183 INFO L208 MainTranslator]: Completed translation [2020-12-09 12:08:36,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36 WrapperNode [2020-12-09 12:08:36,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 12:08:36,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 12:08:36,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 12:08:36,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 12:08:36,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 12:08:36,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 12:08:36,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 12:08:36,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 12:08:36,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... [2020-12-09 12:08:36,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 12:08:36,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 12:08:36,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 12:08:36,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 12:08:36,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/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 12:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 12:08:36,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 12:08:36,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 12:08:36,442 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 12:08:36,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:08:36 BoogieIcfgContainer [2020-12-09 12:08:36,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 12:08:36,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 12:08:36,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 12:08:36,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 12:08:36,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:08:36" (1/3) ... [2020-12-09 12:08:36,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2530f0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:08:36, skipping insertion in model container [2020-12-09 12:08:36,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:08:36" (2/3) ... [2020-12-09 12:08:36,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2530f0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:08:36, skipping insertion in model container [2020-12-09 12:08:36,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:08:36" (3/3) ... [2020-12-09 12:08:36,450 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-complex.c [2020-12-09 12:08:36,460 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 12:08:36,462 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-09 12:08:36,470 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-09 12:08:36,487 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 12:08:36,487 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 12:08:36,487 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 12:08:36,487 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 12:08:36,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 12:08:36,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 12:08:36,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 12:08:36,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 12:08:36,498 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-12-09 12:08:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 12:08:36,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:08:36,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 12:08:36,502 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 12:08:36,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:08:36,506 INFO L82 PathProgramCache]: Analyzing trace with hash 965081, now seen corresponding path program 1 times [2020-12-09 12:08:36,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:08:36,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101877704] [2020-12-09 12:08:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:08:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:08:36,612 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 12:08:36,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101877704] [2020-12-09 12:08:36,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:08:36,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 12:08:36,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750125823] [2020-12-09 12:08:36,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:08:36,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:08:36,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:08:36,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:08:36,629 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-12-09 12:08:36,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:08:36,682 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2020-12-09 12:08:36,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:08:36,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 12:08:36,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:08:36,689 INFO L225 Difference]: With dead ends: 50 [2020-12-09 12:08:36,689 INFO L226 Difference]: Without dead ends: 46 [2020-12-09 12:08:36,691 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 12:08:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-09 12:08:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2020-12-09 12:08:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-09 12:08:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2020-12-09 12:08:36,717 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 4 [2020-12-09 12:08:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:08:36,717 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2020-12-09 12:08:36,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:08:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2020-12-09 12:08:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 12:08:36,717 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:08:36,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 12:08:36,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 12:08:36,718 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 12:08:36,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:08:36,719 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2020-12-09 12:08:36,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:08:36,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868828021] [2020-12-09 12:08:36,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:08:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:08:36,739 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 12:08:36,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868828021] [2020-12-09 12:08:36,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:08:36,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 12:08:36,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855357170] [2020-12-09 12:08:36,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 12:08:36,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:08:36,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 12:08:36,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 12:08:36,743 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 4 states. [2020-12-09 12:08:36,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:08:36,839 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2020-12-09 12:08:36,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 12:08:36,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 12:08:36,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:08:36,841 INFO L225 Difference]: With dead ends: 59 [2020-12-09 12:08:36,841 INFO L226 Difference]: Without dead ends: 55 [2020-12-09 12:08:36,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 12:08:36,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-09 12:08:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2020-12-09 12:08:36,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-09 12:08:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2020-12-09 12:08:36,850 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 5 [2020-12-09 12:08:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:08:36,851 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2020-12-09 12:08:36,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 12:08:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2020-12-09 12:08:36,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 12:08:36,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:08:36,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 12:08:36,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 12:08:36,852 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 12:08:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:08:36,853 INFO L82 PathProgramCache]: Analyzing trace with hash 29917595, now seen corresponding path program 1 times [2020-12-09 12:08:36,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:08:36,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008366199] [2020-12-09 12:08:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:08:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:08:36,875 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 12:08:36,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008366199] [2020-12-09 12:08:36,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:08:36,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:08:36,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835270703] [2020-12-09 12:08:36,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:08:36,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:08:36,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:08:36,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:08:36,878 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand 3 states. [2020-12-09 12:08:36,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:08:36,895 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2020-12-09 12:08:36,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:08:36,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 12:08:36,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:08:36,896 INFO L225 Difference]: With dead ends: 47 [2020-12-09 12:08:36,896 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 12:08:36,897 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 12:08:36,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 12:08:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-09 12:08:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 12:08:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2020-12-09 12:08:36,904 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 5 [2020-12-09 12:08:36,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:08:36,905 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2020-12-09 12:08:36,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:08:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2020-12-09 12:08:36,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 12:08:36,905 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:08:36,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 12:08:36,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 12:08:36,906 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 12:08:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:08:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2020-12-09 12:08:36,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:08:36,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128688630] [2020-12-09 12:08:36,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:08:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:08:36,925 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 12:08:36,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128688630] [2020-12-09 12:08:36,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:08:36,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 12:08:36,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686619550] [2020-12-09 12:08:36,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:08:36,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:08:36,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:08:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:08:36,928 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 3 states. [2020-12-09 12:08:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:08:36,959 INFO L93 Difference]: Finished difference Result 103 states and 135 transitions. [2020-12-09 12:08:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:08:36,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 12:08:36,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:08:36,960 INFO L225 Difference]: With dead ends: 103 [2020-12-09 12:08:36,960 INFO L226 Difference]: Without dead ends: 60 [2020-12-09 12:08:36,961 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 12:08:36,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-09 12:08:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2020-12-09 12:08:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-09 12:08:36,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2020-12-09 12:08:36,969 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 6 [2020-12-09 12:08:36,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:08:36,970 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2020-12-09 12:08:36,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:08:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2020-12-09 12:08:36,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 12:08:36,970 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:08:36,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 12:08:36,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 12:08:36,971 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 12:08:36,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:08:36,972 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2020-12-09 12:08:36,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:08:36,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630901135] [2020-12-09 12:08:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:08:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:08:36,991 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 12:08:36,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630901135] [2020-12-09 12:08:36,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:08:36,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:08:36,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695973312] [2020-12-09 12:08:36,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:08:36,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:08:36,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:08:36,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:08:36,993 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand 3 states. [2020-12-09 12:08:37,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:08:37,008 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2020-12-09 12:08:37,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:08:37,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 12:08:37,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:08:37,009 INFO L225 Difference]: With dead ends: 58 [2020-12-09 12:08:37,009 INFO L226 Difference]: Without dead ends: 57 [2020-12-09 12:08:37,009 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 12:08:37,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-09 12:08:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-09 12:08:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 12:08:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-12-09 12:08:37,018 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2020-12-09 12:08:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:08:37,018 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-12-09 12:08:37,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:08:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2020-12-09 12:08:37,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 12:08:37,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:08:37,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 12:08:37,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 12:08:37,019 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 12:08:37,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:08:37,019 INFO L82 PathProgramCache]: Analyzing trace with hash 927445531, now seen corresponding path program 1 times [2020-12-09 12:08:37,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:08:37,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33878677] [2020-12-09 12:08:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:08:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:08:37,035 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 12:08:37,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33878677] [2020-12-09 12:08:37,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:08:37,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:08:37,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949280447] [2020-12-09 12:08:37,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:08:37,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:08:37,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:08:37,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:08:37,037 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand 3 states. [2020-12-09 12:08:37,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:08:37,061 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2020-12-09 12:08:37,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:08:37,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 12:08:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:08:37,062 INFO L225 Difference]: With dead ends: 66 [2020-12-09 12:08:37,063 INFO L226 Difference]: Without dead ends: 65 [2020-12-09 12:08:37,063 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 12:08:37,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-09 12:08:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2020-12-09 12:08:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 12:08:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-12-09 12:08:37,069 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2020-12-09 12:08:37,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:08:37,069 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-12-09 12:08:37,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:08:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2020-12-09 12:08:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 12:08:37,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:08:37,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:08:37,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 12:08:37,070 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 12:08:37,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:08:37,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1313959523, now seen corresponding path program 1 times [2020-12-09 12:08:37,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:08:37,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826549418] [2020-12-09 12:08:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:08:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 12:08:37,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 12:08:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 12:08:37,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 12:08:37,098 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 12:08:37,098 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 12:08:37,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 12:08:37,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:08:37 BoogieIcfgContainer [2020-12-09 12:08:37,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 12:08:37,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 12:08:37,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 12:08:37,113 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 12:08:37,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:08:36" (3/4) ... [2020-12-09 12:08:37,116 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 12:08:37,139 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b776471-0bbc-4927-8e77-045f175aa366/bin/utaipan/witness.graphml [2020-12-09 12:08:37,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 12:08:37,141 INFO L168 Benchmark]: Toolchain (without parser) took 1102.85 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 56.3 MB in the beginning and 84.4 MB in the end (delta: -28.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:08:37,141 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 72.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:08:37,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.60 ms. Allocated memory is still 96.5 MB. Free memory was 56.0 MB in the beginning and 73.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:08:37,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.03 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 72.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:08:37,142 INFO L168 Benchmark]: Boogie Preprocessor took 12.29 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 71.3 MB in the end (delta: 960.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:08:37,143 INFO L168 Benchmark]: RCFGBuilder took 226.48 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 68.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 12:08:37,143 INFO L168 Benchmark]: TraceAbstraction took 667.78 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 68.0 MB in the beginning and 85.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-12-09 12:08:37,144 INFO L168 Benchmark]: Witness Printer took 26.45 ms. Allocated memory is still 119.5 MB. Free memory was 85.5 MB in the beginning and 84.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:08:37,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 72.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 144.60 ms. Allocated memory is still 96.5 MB. Free memory was 56.0 MB in the beginning and 73.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 20.03 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 72.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 12.29 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 71.3 MB in the end (delta: 960.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 226.48 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 68.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 667.78 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 68.0 MB in the beginning and 85.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Witness Printer took 26.45 ms. Allocated memory is still 119.5 MB. Free memory was 85.5 MB in the beginning and 84.4 MB in the end (delta: 1.1 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: 30]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int a, b; [L14] a = __VERIFIER_nondet_int() [L15] b = __VERIFIER_nondet_int() [L16] COND TRUE a < 30 [L17] COND FALSE !(b < a) [L29] EXPR a + 2 [L29] a = a + 2 [L30] b - 10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 101 SDtfs, 121 SDslu, 40 SDs, 0 SdLazy, 166 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=4, 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, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...