./Ultimate.py --spec ../../sv-benchmarks/c/Systems_BusyBox_NoOverflows.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename_false-unreach-call_true-no-overflow_true-valid-memsafety.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename_false-unreach-call_true-no-overflow_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/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 c57ebc44b313bf301635c00d4458ecfdd41286b1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:23:59,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:23:59,380 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:23:59,386 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:23:59,386 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:23:59,387 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:23:59,388 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:23:59,389 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:23:59,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:23:59,391 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:23:59,391 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:23:59,391 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:23:59,392 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:23:59,393 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:23:59,393 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:23:59,394 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:23:59,394 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:23:59,395 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:23:59,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:23:59,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:23:59,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:23:59,399 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:23:59,400 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:23:59,401 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:23:59,401 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:23:59,401 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:23:59,402 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:23:59,403 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:23:59,403 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:23:59,404 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:23:59,404 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:23:59,405 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:23:59,405 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:23:59,405 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:23:59,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:23:59,406 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:23:59,406 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 10:23:59,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:23:59,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:23:59,417 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:23:59,417 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:23:59,417 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:23:59,417 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:23:59,418 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:23:59,418 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:23:59,418 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:23:59,418 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:23:59,418 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:23:59,418 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:23:59,418 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:23:59,419 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:23:59,419 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:23:59,419 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:23:59,419 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:23:59,419 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:23:59,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:23:59,420 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:23:59,420 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 10:23:59,420 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:23:59,420 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:23:59,420 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:23:59,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:23:59,420 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:23:59,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:23:59,421 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:23:59,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:23:59,421 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:23:59,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:23:59,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:23:59,421 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:23:59,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:23:59,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:23:59,422 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:23:59,422 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/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 -> c57ebc44b313bf301635c00d4458ecfdd41286b1 [2018-11-18 10:23:59,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:23:59,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:23:59,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:23:59,454 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:23:59,454 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:23:59,454 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/../../sv-benchmarks/c/busybox-1.22.0/basename_false-unreach-call_true-no-overflow_true-valid-memsafety.i [2018-11-18 10:23:59,490 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/data/8c9e134cc/912698689bb240a485b082eadca887ee/FLAG197288434 [2018-11-18 10:23:59,974 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:23:59,975 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/sv-benchmarks/c/busybox-1.22.0/basename_false-unreach-call_true-no-overflow_true-valid-memsafety.i [2018-11-18 10:23:59,988 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/data/8c9e134cc/912698689bb240a485b082eadca887ee/FLAG197288434 [2018-11-18 10:24:00,473 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/utaipan/data/8c9e134cc/912698689bb240a485b082eadca887ee [2018-11-18 10:24:00,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:24:00,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:24:00,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:24:00,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:24:00,478 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:24:00,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:24:00" (1/1) ... [2018-11-18 10:24:00,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf153bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:00, skipping insertion in model container [2018-11-18 10:24:00,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:24:00" (1/1) ... [2018-11-18 10:24:00,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:24:00,531 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:24:00,936 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:24:00,998 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:24:01,055 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:24:01,169 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:24:01,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01 WrapperNode [2018-11-18 10:24:01,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:24:01,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:24:01,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:24:01,170 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:24:01,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:24:01,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:24:01,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:24:01,207 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:24:01,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... [2018-11-18 10:24:01,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:24:01,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:24:01,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:24:01,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:24:01,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be630621-3904-4eb5-9325-3ce8a7dd0e10/bin-2019/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 [2018-11-18 10:24:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2018-11-18 10:24:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2018-11-18 10:24:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure last_char_is [2018-11-18 10:24:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure last_char_is [2018-11-18 10:24:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:24:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:24:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 10:24:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:24:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure safe_write [2018-11-18 10:24:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_write [2018-11-18 10:24:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure bb_get_last_path_component_nostrip [2018-11-18 10:24:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_get_last_path_component_nostrip [2018-11-18 10:24:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure bb_get_last_path_component_strip [2018-11-18 10:24:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_get_last_path_component_strip [2018-11-18 10:24:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:24:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:24:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:24:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure write [2018-11-18 10:24:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure write [2018-11-18 10:24:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:24:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2018-11-18 10:24:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:24:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:24:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 10:24:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure full_write [2018-11-18 10:24:01,307 INFO L138 BoogieDeclarations]: Found implementation of procedure full_write [2018-11-18 10:24:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:24:01,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:24:02,002 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:24:02,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:24:02 BoogieIcfgContainer [2018-11-18 10:24:02,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:24:02,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:24:02,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:24:02,005 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:24:02,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:24:00" (1/3) ... [2018-11-18 10:24:02,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fafdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:24:02, skipping insertion in model container [2018-11-18 10:24:02,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:24:01" (2/3) ... [2018-11-18 10:24:02,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fafdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:24:02, skipping insertion in model container [2018-11-18 10:24:02,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:24:02" (3/3) ... [2018-11-18 10:24:02,007 INFO L112 eAbstractionObserver]: Analyzing ICFG basename_false-unreach-call_true-no-overflow_true-valid-memsafety.i [2018-11-18 10:24:02,013 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:24:02,018 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 28 error locations. [2018-11-18 10:24:02,027 INFO L257 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2018-11-18 10:24:02,047 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:24:02,047 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:24:02,047 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:24:02,047 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:24:02,047 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:24:02,047 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:24:02,047 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:24:02,047 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:24:02,064 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2018-11-18 10:24:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:24:02,067 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:02,068 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:02,069 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:02,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:02,073 INFO L82 PathProgramCache]: Analyzing trace with hash -883207552, now seen corresponding path program 1 times [2018-11-18 10:24:02,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:02,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:02,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:02,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:24:02,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:24:02,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:24:02,329 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:24:02,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:24:02,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:24:02,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:02,347 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 3 states. [2018-11-18 10:24:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:24:02,406 INFO L93 Difference]: Finished difference Result 312 states and 402 transitions. [2018-11-18 10:24:02,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:24:02,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 10:24:02,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:24:02,416 INFO L225 Difference]: With dead ends: 312 [2018-11-18 10:24:02,417 INFO L226 Difference]: Without dead ends: 157 [2018-11-18 10:24:02,420 INFO L604 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 [2018-11-18 10:24:02,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-11-18 10:24:02,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-11-18 10:24:02,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-11-18 10:24:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2018-11-18 10:24:02,456 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 9 [2018-11-18 10:24:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:24:02,456 INFO L480 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2018-11-18 10:24:02,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:24:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2018-11-18 10:24:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:24:02,457 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:02,458 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:02,458 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:02,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:02,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1609630197, now seen corresponding path program 1 times [2018-11-18 10:24:02,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:02,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:02,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:24:02,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:24:02,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:24:02,546 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:24:02,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:24:02,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:24:02,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:02,548 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand 3 states. [2018-11-18 10:24:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:24:02,583 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2018-11-18 10:24:02,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:24:02,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 10:24:02,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:24:02,585 INFO L225 Difference]: With dead ends: 160 [2018-11-18 10:24:02,585 INFO L226 Difference]: Without dead ends: 159 [2018-11-18 10:24:02,586 INFO L604 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 [2018-11-18 10:24:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-11-18 10:24:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-11-18 10:24:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-11-18 10:24:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 193 transitions. [2018-11-18 10:24:02,596 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 193 transitions. Word has length 10 [2018-11-18 10:24:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:24:02,596 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 193 transitions. [2018-11-18 10:24:02,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:24:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 193 transitions. [2018-11-18 10:24:02,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:24:02,597 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:02,597 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:02,598 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:02,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:02,598 INFO L82 PathProgramCache]: Analyzing trace with hash -449337904, now seen corresponding path program 1 times [2018-11-18 10:24:02,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:02,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:02,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 10:24:02,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:24:02,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:24:02,670 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:24:02,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:24:02,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:24:02,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:02,671 INFO L87 Difference]: Start difference. First operand 159 states and 193 transitions. Second operand 3 states. [2018-11-18 10:24:02,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:24:02,736 INFO L93 Difference]: Finished difference Result 159 states and 193 transitions. [2018-11-18 10:24:02,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:24:02,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-18 10:24:02,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:24:02,738 INFO L225 Difference]: With dead ends: 159 [2018-11-18 10:24:02,738 INFO L226 Difference]: Without dead ends: 155 [2018-11-18 10:24:02,738 INFO L604 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 [2018-11-18 10:24:02,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-11-18 10:24:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-11-18 10:24:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-11-18 10:24:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2018-11-18 10:24:02,747 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 14 [2018-11-18 10:24:02,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:24:02,748 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2018-11-18 10:24:02,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:24:02,748 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2018-11-18 10:24:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:24:02,748 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:02,748 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:02,749 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:02,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:02,749 INFO L82 PathProgramCache]: Analyzing trace with hash -449336174, now seen corresponding path program 1 times [2018-11-18 10:24:02,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:02,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:02,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,761 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:24:02,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:24:02,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:24:02,817 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:24:02,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:24:02,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:24:02,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:02,818 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand 3 states. [2018-11-18 10:24:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:24:02,850 INFO L93 Difference]: Finished difference Result 155 states and 189 transitions. [2018-11-18 10:24:02,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:24:02,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-18 10:24:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:24:02,852 INFO L225 Difference]: With dead ends: 155 [2018-11-18 10:24:02,852 INFO L226 Difference]: Without dead ends: 154 [2018-11-18 10:24:02,852 INFO L604 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 [2018-11-18 10:24:02,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-11-18 10:24:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2018-11-18 10:24:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-18 10:24:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 186 transitions. [2018-11-18 10:24:02,862 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 186 transitions. Word has length 14 [2018-11-18 10:24:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:24:02,863 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 186 transitions. [2018-11-18 10:24:02,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:24:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 186 transitions. [2018-11-18 10:24:02,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:24:02,864 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:02,864 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:02,865 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:02,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:02,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1044572989, now seen corresponding path program 1 times [2018-11-18 10:24:02,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:02,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:02,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:02,875 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 10:24:02,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:24:02,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:24:02,951 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:24:02,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:24:02,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:24:02,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:02,952 INFO L87 Difference]: Start difference. First operand 152 states and 186 transitions. Second operand 3 states. [2018-11-18 10:24:03,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:24:03,012 INFO L93 Difference]: Finished difference Result 152 states and 186 transitions. [2018-11-18 10:24:03,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:24:03,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 10:24:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:24:03,014 INFO L225 Difference]: With dead ends: 152 [2018-11-18 10:24:03,014 INFO L226 Difference]: Without dead ends: 150 [2018-11-18 10:24:03,014 INFO L604 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 [2018-11-18 10:24:03,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-18 10:24:03,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-11-18 10:24:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-11-18 10:24:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 184 transitions. [2018-11-18 10:24:03,022 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 184 transitions. Word has length 15 [2018-11-18 10:24:03,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:24:03,022 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 184 transitions. [2018-11-18 10:24:03,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:24:03,022 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 184 transitions. [2018-11-18 10:24:03,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 10:24:03,023 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:03,023 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:03,023 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:03,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:03,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1187709605, now seen corresponding path program 1 times [2018-11-18 10:24:03,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:03,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:03,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:03,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:03,036 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 10:24:03,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:24:03,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:24:03,093 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:24:03,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:24:03,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:24:03,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:03,093 INFO L87 Difference]: Start difference. First operand 150 states and 184 transitions. Second operand 3 states. [2018-11-18 10:24:03,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:24:03,144 INFO L93 Difference]: Finished difference Result 150 states and 184 transitions. [2018-11-18 10:24:03,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:24:03,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-18 10:24:03,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:24:03,146 INFO L225 Difference]: With dead ends: 150 [2018-11-18 10:24:03,146 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 10:24:03,147 INFO L604 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 [2018-11-18 10:24:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 10:24:03,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-18 10:24:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 10:24:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 182 transitions. [2018-11-18 10:24:03,155 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 182 transitions. Word has length 17 [2018-11-18 10:24:03,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:24:03,155 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 182 transitions. [2018-11-18 10:24:03,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:24:03,155 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 182 transitions. [2018-11-18 10:24:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 10:24:03,157 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:03,157 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:03,158 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:03,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1071021130, now seen corresponding path program 1 times [2018-11-18 10:24:03,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:03,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:03,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:03,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:03,167 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 10:24:03,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:24:03,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:24:03,203 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:24:03,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:24:03,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:24:03,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:03,204 INFO L87 Difference]: Start difference. First operand 148 states and 182 transitions. Second operand 3 states. [2018-11-18 10:24:03,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:24:03,232 INFO L93 Difference]: Finished difference Result 279 states and 349 transitions. [2018-11-18 10:24:03,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:24:03,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-18 10:24:03,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:24:03,233 INFO L225 Difference]: With dead ends: 279 [2018-11-18 10:24:03,234 INFO L226 Difference]: Without dead ends: 152 [2018-11-18 10:24:03,234 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:24:03,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-11-18 10:24:03,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-11-18 10:24:03,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-18 10:24:03,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 186 transitions. [2018-11-18 10:24:03,240 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 186 transitions. Word has length 26 [2018-11-18 10:24:03,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:24:03,240 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 186 transitions. [2018-11-18 10:24:03,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:24:03,240 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 186 transitions. [2018-11-18 10:24:03,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 10:24:03,240 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:24:03,240 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:24:03,241 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, full_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:24:03,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:24:03,243 INFO L82 PathProgramCache]: Analyzing trace with hash -853623355, now seen corresponding path program 1 times [2018-11-18 10:24:03,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:24:03,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:03,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:24:03,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:24:03,248 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:24:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:24:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:24:03,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:24:03,312 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:24:03,313 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-11-18 10:24:03,314 INFO L202 CegarAbsIntRunner]: [95], [99], [102], [104], [107], [109], [113], [115], [117], [119], [121], [123], [125], [127], [129], [133], [136], [184], [185], [186], [189], [192], [195], [208], [212], [213], [371], [377], [378], [379] [2018-11-18 10:24:03,338 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:24:03,339 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:24:03,424 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-18 10:24:03,427 INFO L168 Benchmark]: Toolchain (without parser) took 2952.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 957.6 MB in the beginning and 1.0 GB in the end (delta: -91.2 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:24:03,434 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:24:03,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -105.9 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:24:03,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:24:03,435 INFO L168 Benchmark]: Boogie Preprocessor took 52.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:24:03,436 INFO L168 Benchmark]: RCFGBuilder took 742.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.7 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:24:03,436 INFO L168 Benchmark]: TraceAbstraction took 1424.04 ms. Allocated memory is still 1.2 GB. Free memory was 984.7 MB in the beginning and 1.0 GB in the end (delta: -64.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:24:03,441 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 693.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -105.9 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 742.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.7 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1424.04 ms. Allocated memory is still 1.2 GB. Free memory was 984.7 MB in the beginning and 1.0 GB in the end (delta: -64.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...