./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c -s /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/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-a4ecdab [2020-11-28 07:34:19,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:34:19,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:34:19,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:34:19,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:34:19,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:34:19,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:34:19,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:34:19,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:34:19,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:34:19,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:34:19,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:34:19,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:34:19,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:34:19,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:34:19,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:34:19,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:34:19,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:34:19,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:34:19,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:34:19,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:34:19,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:34:19,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:34:19,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:34:19,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:34:19,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:34:19,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:34:19,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:34:19,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:34:19,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:34:19,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:34:19,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:34:19,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:34:19,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:34:19,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:34:19,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:34:19,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:34:19,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:34:19,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:34:19,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:34:19,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:34:19,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-28 07:34:19,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:34:19,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:34:19,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:34:19,716 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:34:19,716 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:34:19,717 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:34:19,717 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:34:19,717 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:34:19,717 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:34:19,717 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:34:19,718 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:34:19,719 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:34:19,719 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:34:19,719 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:34:19,719 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:34:19,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:34:19,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:34:19,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:34:19,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:34:19,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:34:19,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:34:19,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:34:19,722 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 07:34:19,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:34:19,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:34:19,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:34:19,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:34:19,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:34:19,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:34:19,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:34:19,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:34:19,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:34:19,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:34:19,725 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:34:19,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:34:19,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:34:19,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:34:19,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:34:19,726 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_757ea3c3-66f0-4092-815f-fa46078d2440/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f16087843ad8a83da47d6a6a4e9d674fa79150d [2020-11-28 07:34:20,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:34:20,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:34:20,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:34:20,065 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:34:20,066 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:34:20,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2020-11-28 07:34:20,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/data/592f8ea28/eba40ca90c8c4ee4a22c7c08a828e6c9/FLAG0828ca406 [2020-11-28 07:34:20,693 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:34:20,694 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2020-11-28 07:34:20,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/data/592f8ea28/eba40ca90c8c4ee4a22c7c08a828e6c9/FLAG0828ca406 [2020-11-28 07:34:21,064 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/data/592f8ea28/eba40ca90c8c4ee4a22c7c08a828e6c9 [2020-11-28 07:34:21,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:34:21,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:34:21,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:34:21,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:34:21,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:34:21,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bdf094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21, skipping insertion in model container [2020-11-28 07:34:21,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:34:21,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:34:21,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:34:21,246 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:34:21,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:34:21,300 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:34:21,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21 WrapperNode [2020-11-28 07:34:21,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:34:21,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:34:21,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:34:21,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:34:21,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:34:21,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:34:21,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:34:21,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:34:21,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... [2020-11-28 07:34:21,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:34:21,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:34:21,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:34:21,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:34:21,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/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 [2020-11-28 07:34:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:34:21,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:34:21,708 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:34:21,708 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 07:34:21,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:34:21 BoogieIcfgContainer [2020-11-28 07:34:21,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:34:21,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:34:21,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:34:21,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:34:21,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:34:21" (1/3) ... [2020-11-28 07:34:21,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483c8eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:34:21, skipping insertion in model container [2020-11-28 07:34:21,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:34:21" (2/3) ... [2020-11-28 07:34:21,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483c8eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:34:21, skipping insertion in model container [2020-11-28 07:34:21,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:34:21" (3/3) ... [2020-11-28 07:34:21,719 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-complex.c [2020-11-28 07:34:21,730 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:34:21,735 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-28 07:34:21,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-28 07:34:21,792 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:34:21,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:34:21,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:34:21,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:34:21,793 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:34:21,793 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:34:21,793 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:34:21,793 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:34:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-28 07:34:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:34:21,812 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:34:21,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:34:21,813 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]=== [2020-11-28 07:34:21,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:34:21,819 INFO L82 PathProgramCache]: Analyzing trace with hash 965081, now seen corresponding path program 1 times [2020-11-28 07:34:21,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:34:21,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726944817] [2020-11-28 07:34:21,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:34:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:34:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:34:21,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726944817] [2020-11-28 07:34:21,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:34:21,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:34:21,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649196627] [2020-11-28 07:34:21,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:34:21,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:34:21,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:34:21,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:34:21,981 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-11-28 07:34:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:34:22,158 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2020-11-28 07:34:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:34:22,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 07:34:22,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:34:22,170 INFO L225 Difference]: With dead ends: 50 [2020-11-28 07:34:22,170 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 07:34:22,173 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 [2020-11-28 07:34:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 07:34:22,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2020-11-28 07:34:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 07:34:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2020-11-28 07:34:22,211 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 4 [2020-11-28 07:34:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:34:22,211 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2020-11-28 07:34:22,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:34:22,212 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2020-11-28 07:34:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:34:22,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:34:22,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:34:22,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:34:22,214 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]=== [2020-11-28 07:34:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:34:22,219 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2020-11-28 07:34:22,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:34:22,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96592608] [2020-11-28 07:34:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:34:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:34:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:34:22,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96592608] [2020-11-28 07:34:22,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:34:22,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:34:22,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966488834] [2020-11-28 07:34:22,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:34:22,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:34:22,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:34:22,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:34:22,259 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 4 states. [2020-11-28 07:34:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:34:22,497 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2020-11-28 07:34:22,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:34:22,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 07:34:22,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:34:22,499 INFO L225 Difference]: With dead ends: 59 [2020-11-28 07:34:22,499 INFO L226 Difference]: Without dead ends: 55 [2020-11-28 07:34:22,500 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 [2020-11-28 07:34:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-28 07:34:22,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2020-11-28 07:34:22,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 07:34:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2020-11-28 07:34:22,508 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 5 [2020-11-28 07:34:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:34:22,509 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2020-11-28 07:34:22,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:34:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2020-11-28 07:34:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:34:22,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:34:22,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:34:22,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:34:22,510 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]=== [2020-11-28 07:34:22,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:34:22,511 INFO L82 PathProgramCache]: Analyzing trace with hash 29917595, now seen corresponding path program 1 times [2020-11-28 07:34:22,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:34:22,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743425059] [2020-11-28 07:34:22,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:34:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:34:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:34:22,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743425059] [2020-11-28 07:34:22,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:34:22,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:34:22,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725311762] [2020-11-28 07:34:22,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:34:22,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:34:22,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:34:22,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:34:22,556 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand 3 states. [2020-11-28 07:34:22,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:34:22,591 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2020-11-28 07:34:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:34:22,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 07:34:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:34:22,594 INFO L225 Difference]: With dead ends: 47 [2020-11-28 07:34:22,595 INFO L226 Difference]: Without dead ends: 44 [2020-11-28 07:34:22,597 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 [2020-11-28 07:34:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-11-28 07:34:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-11-28 07:34:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-28 07:34:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2020-11-28 07:34:22,613 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 5 [2020-11-28 07:34:22,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:34:22,613 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2020-11-28 07:34:22,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:34:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2020-11-28 07:34:22,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:34:22,615 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:34:22,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:34:22,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:34:22,616 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]=== [2020-11-28 07:34:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:34:22,617 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2020-11-28 07:34:22,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:34:22,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082926226] [2020-11-28 07:34:22,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:34:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:34:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:34:22,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082926226] [2020-11-28 07:34:22,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:34:22,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:34:22,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082378817] [2020-11-28 07:34:22,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:34:22,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:34:22,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:34:22,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:34:22,641 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 3 states. [2020-11-28 07:34:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:34:22,697 INFO L93 Difference]: Finished difference Result 103 states and 135 transitions. [2020-11-28 07:34:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:34:22,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 07:34:22,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:34:22,702 INFO L225 Difference]: With dead ends: 103 [2020-11-28 07:34:22,702 INFO L226 Difference]: Without dead ends: 60 [2020-11-28 07:34:22,703 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 [2020-11-28 07:34:22,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-28 07:34:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2020-11-28 07:34:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-28 07:34:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2020-11-28 07:34:22,723 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 6 [2020-11-28 07:34:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:34:22,724 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2020-11-28 07:34:22,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:34:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2020-11-28 07:34:22,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:34:22,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:34:22,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:34:22,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:34:22,727 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]=== [2020-11-28 07:34:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:34:22,729 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2020-11-28 07:34:22,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:34:22,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618803995] [2020-11-28 07:34:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:34:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:34:22,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:34:22,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618803995] [2020-11-28 07:34:22,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:34:22,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:34:22,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675479036] [2020-11-28 07:34:22,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:34:22,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:34:22,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:34:22,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:34:22,770 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand 3 states. [2020-11-28 07:34:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:34:22,809 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2020-11-28 07:34:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:34:22,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 07:34:22,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:34:22,811 INFO L225 Difference]: With dead ends: 58 [2020-11-28 07:34:22,811 INFO L226 Difference]: Without dead ends: 57 [2020-11-28 07:34:22,812 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 [2020-11-28 07:34:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-28 07:34:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-28 07:34:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-28 07:34:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-11-28 07:34:22,821 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2020-11-28 07:34:22,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:34:22,821 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-11-28 07:34:22,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:34:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2020-11-28 07:34:22,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:34:22,822 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:34:22,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:34:22,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 07:34:22,823 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]=== [2020-11-28 07:34:22,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:34:22,824 INFO L82 PathProgramCache]: Analyzing trace with hash 927445531, now seen corresponding path program 1 times [2020-11-28 07:34:22,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:34:22,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665572060] [2020-11-28 07:34:22,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:34:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:34:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:34:22,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665572060] [2020-11-28 07:34:22,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:34:22,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:34:22,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882744286] [2020-11-28 07:34:22,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:34:22,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:34:22,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:34:22,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:34:22,849 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand 3 states. [2020-11-28 07:34:22,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:34:22,912 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2020-11-28 07:34:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:34:22,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 07:34:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:34:22,915 INFO L225 Difference]: With dead ends: 66 [2020-11-28 07:34:22,915 INFO L226 Difference]: Without dead ends: 65 [2020-11-28 07:34:22,916 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 [2020-11-28 07:34:22,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-28 07:34:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2020-11-28 07:34:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-28 07:34:22,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-11-28 07:34:22,932 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2020-11-28 07:34:22,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:34:22,932 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-11-28 07:34:22,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:34:22,932 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2020-11-28 07:34:22,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:34:22,933 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:34:22,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:34:22,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 07:34:22,933 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]=== [2020-11-28 07:34:22,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:34:22,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1313959523, now seen corresponding path program 1 times [2020-11-28 07:34:22,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:34:22,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077202778] [2020-11-28 07:34:22,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:34:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:34:22,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:34:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:34:22,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:34:22,999 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:34:22,999 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:34:22,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 07:34:23,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:34:23 BoogieIcfgContainer [2020-11-28 07:34:23,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:34:23,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:34:23,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:34:23,027 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:34:23,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:34:21" (3/4) ... [2020-11-28 07:34:23,030 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:34:23,076 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_757ea3c3-66f0-4092-815f-fa46078d2440/bin/utaipan/witness.graphml [2020-11-28 07:34:23,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:34:23,078 INFO L168 Benchmark]: Toolchain (without parser) took 2008.07 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 68.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:34:23,079 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 38.9 MB in the beginning and 38.8 MB in the end (delta: 42.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:34:23,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.70 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 77.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:34:23,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.18 ms. Allocated memory is still 98.6 MB. Free memory was 77.6 MB in the beginning and 76.6 MB in the end (delta: 997.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:34:23,080 INFO L168 Benchmark]: Boogie Preprocessor took 17.11 ms. Allocated memory is still 98.6 MB. Free memory was 76.6 MB in the beginning and 75.6 MB in the end (delta: 994.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:34:23,081 INFO L168 Benchmark]: RCFGBuilder took 364.79 ms. Allocated memory is still 98.6 MB. Free memory was 75.6 MB in the beginning and 62.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:34:23,081 INFO L168 Benchmark]: TraceAbstraction took 1314.51 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 70.2 MB in the end (delta: -8.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:34:23,082 INFO L168 Benchmark]: Witness Printer took 48.80 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 68.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:34:23,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 38.9 MB in the beginning and 38.8 MB in the end (delta: 42.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.70 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 77.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.18 ms. Allocated memory is still 98.6 MB. Free memory was 77.6 MB in the beginning and 76.6 MB in the end (delta: 997.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.11 ms. Allocated memory is still 98.6 MB. Free memory was 76.6 MB in the beginning and 75.6 MB in the end (delta: 994.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 364.79 ms. Allocated memory is still 98.6 MB. Free memory was 75.6 MB in the beginning and 62.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1314.51 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 70.2 MB in the end (delta: -8.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 48.80 ms. Allocated memory is still 98.6 MB. Free memory was 70.2 MB in the beginning and 68.8 MB in the end (delta: 1.4 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: 1.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.4s 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, 0.1s 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...