./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4732dd3bead498dcfa33caf242cd74b12e0ffa3 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4732dd3bead498dcfa33caf242cd74b12e0ffa3 .................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:20,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:20,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:20,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:20,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:20,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:20,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:20,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:20,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:20,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:20,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:20,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:20,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:20,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:20,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:20,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:20,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:20,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:20,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:20,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:20,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:20,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:20,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:20,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:20,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:20,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:20,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:20,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:20,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:20,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:20,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:20,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:20,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:20,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:20,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:20,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:20,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:20,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:20,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:20,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:20,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:20,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:22:20,561 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:20,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:20,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:20,562 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:20,562 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:20,563 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:20,563 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:20,563 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:20,563 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:20,563 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:20,564 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:20,564 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:20,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:20,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:20,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:20,565 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:20,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:20,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:20,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:20,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:20,566 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:20,566 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:20,566 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:20,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:20,567 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:20,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:20,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:20,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:20,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:20,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:20,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:20,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:20,569 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:20,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:20,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:20,569 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4732dd3bead498dcfa33caf242cd74b12e0ffa3 [2019-10-22 11:22:20,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:20,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:20,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:20,617 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:20,617 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:20,618 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i [2019-10-22 11:22:20,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/81a7d4215/ea0f97f3b13642c190b3339f3eeb7fbe/FLAG86dd23c5d [2019-10-22 11:22:21,101 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:21,101 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i [2019-10-22 11:22:21,111 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/81a7d4215/ea0f97f3b13642c190b3339f3eeb7fbe/FLAG86dd23c5d [2019-10-22 11:22:21,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/81a7d4215/ea0f97f3b13642c190b3339f3eeb7fbe [2019-10-22 11:22:21,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:21,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:21,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:21,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:21,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:21,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9160ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21, skipping insertion in model container [2019-10-22 11:22:21,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,139 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:21,170 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:21,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:21,580 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:21,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:21,680 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:21,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21 WrapperNode [2019-10-22 11:22:21,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:21,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:21,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:21,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:21,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:21,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:21,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:21,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:21,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... [2019-10-22 11:22:21,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:21,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:21,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:21,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:21,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:22:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:22:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:21,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:22,310 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:22,310 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:22:22,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:22 BoogieIcfgContainer [2019-10-22 11:22:22,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:22,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:22,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:22,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:22,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:21" (1/3) ... [2019-10-22 11:22:22,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8477fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:22, skipping insertion in model container [2019-10-22 11:22:22,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:21" (2/3) ... [2019-10-22 11:22:22,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8477fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:22, skipping insertion in model container [2019-10-22 11:22:22,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:22" (3/3) ... [2019-10-22 11:22:22,320 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcspn-alloca-2.i [2019-10-22 11:22:22,331 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:22,339 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2019-10-22 11:22:22,353 INFO L249 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2019-10-22 11:22:22,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:22,374 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:22:22,374 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:22,374 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:22,374 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:22,374 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:22,374 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:22,375 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-22 11:22:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:22:22,399 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:22,400 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:22,402 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:22,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:22,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2019-10-22 11:22:22,419 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:22,420 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074522846] [2019-10-22 11:22:22,420 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:22,420 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:22,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:22,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:22,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074522846] [2019-10-22 11:22:22,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:22,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:22,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114626510] [2019-10-22 11:22:22,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:22,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:22,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:22,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:22,627 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2019-10-22 11:22:22,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:22,711 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2019-10-22 11:22:22,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:22,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 11:22:22,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:22,724 INFO L225 Difference]: With dead ends: 76 [2019-10-22 11:22:22,724 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 11:22:22,726 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:22,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 11:22:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 43. [2019-10-22 11:22:22,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-22 11:22:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-10-22 11:22:22,764 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7 [2019-10-22 11:22:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:22,764 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2019-10-22 11:22:22,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2019-10-22 11:22:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:22:22,765 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:22,765 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:22,766 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:22,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:22,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1806876138, now seen corresponding path program 1 times [2019-10-22 11:22:22,766 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:22,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746797591] [2019-10-22 11:22:22,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:22,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:22,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:22,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746797591] [2019-10-22 11:22:22,839 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:22,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:22,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064725732] [2019-10-22 11:22:22,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:22,841 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:22,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:22,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:22,841 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 3 states. [2019-10-22 11:22:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:22,944 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2019-10-22 11:22:22,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:22,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:22:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:22,945 INFO L225 Difference]: With dead ends: 41 [2019-10-22 11:22:22,946 INFO L226 Difference]: Without dead ends: 41 [2019-10-22 11:22:22,947 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:22,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-22 11:22:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-10-22 11:22:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-22 11:22:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2019-10-22 11:22:22,951 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 7 [2019-10-22 11:22:22,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:22,951 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2019-10-22 11:22:22,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:22,952 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2019-10-22 11:22:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:22:22,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:22,952 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:22,953 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:22,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1806876139, now seen corresponding path program 1 times [2019-10-22 11:22:22,953 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:22,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335222352] [2019-10-22 11:22:22,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:22,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:22,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335222352] [2019-10-22 11:22:23,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:23,045 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321073805] [2019-10-22 11:22:23,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,047 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 4 states. [2019-10-22 11:22:23,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,192 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2019-10-22 11:22:23,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 11:22:23,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,195 INFO L225 Difference]: With dead ends: 73 [2019-10-22 11:22:23,195 INFO L226 Difference]: Without dead ends: 73 [2019-10-22 11:22:23,196 INFO L600 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 [2019-10-22 11:22:23,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-22 11:22:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 43. [2019-10-22 11:22:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-22 11:22:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2019-10-22 11:22:23,201 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 7 [2019-10-22 11:22:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,201 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2019-10-22 11:22:23,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2019-10-22 11:22:23,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:23,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,202 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,202 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:23,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,203 INFO L82 PathProgramCache]: Analyzing trace with hash -533876960, now seen corresponding path program 1 times [2019-10-22 11:22:23,203 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535342834] [2019-10-22 11:22:23,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,256 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535342834] [2019-10-22 11:22:23,256 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,256 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:23,256 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833043010] [2019-10-22 11:22:23,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,258 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 4 states. [2019-10-22 11:22:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,300 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2019-10-22 11:22:23,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 11:22:23,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,305 INFO L225 Difference]: With dead ends: 42 [2019-10-22 11:22:23,305 INFO L226 Difference]: Without dead ends: 42 [2019-10-22 11:22:23,305 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-22 11:22:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-10-22 11:22:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-22 11:22:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2019-10-22 11:22:23,309 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 9 [2019-10-22 11:22:23,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,309 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2019-10-22 11:22:23,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,310 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2019-10-22 11:22:23,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:23,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,310 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,310 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,311 INFO L82 PathProgramCache]: Analyzing trace with hash -533876908, now seen corresponding path program 1 times [2019-10-22 11:22:23,311 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,311 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597427087] [2019-10-22 11:22:23,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597427087] [2019-10-22 11:22:23,339 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:23,340 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878246309] [2019-10-22 11:22:23,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:23,340 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:23,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:23,341 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 3 states. [2019-10-22 11:22:23,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,368 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-10-22 11:22:23,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:23,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:22:23,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,369 INFO L225 Difference]: With dead ends: 40 [2019-10-22 11:22:23,370 INFO L226 Difference]: Without dead ends: 40 [2019-10-22 11:22:23,370 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-22 11:22:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-10-22 11:22:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-22 11:22:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-10-22 11:22:23,373 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 9 [2019-10-22 11:22:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,373 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-10-22 11:22:23,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:23,374 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-10-22 11:22:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:23,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,374 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,374 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:23,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,375 INFO L82 PathProgramCache]: Analyzing trace with hash -533876907, now seen corresponding path program 1 times [2019-10-22 11:22:23,375 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224544071] [2019-10-22 11:22:23,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224544071] [2019-10-22 11:22:23,434 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:23,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665569175] [2019-10-22 11:22:23,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,435 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 4 states. [2019-10-22 11:22:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,476 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2019-10-22 11:22:23,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 11:22:23,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,480 INFO L225 Difference]: With dead ends: 71 [2019-10-22 11:22:23,481 INFO L226 Difference]: Without dead ends: 71 [2019-10-22 11:22:23,481 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-10-22 11:22:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 51. [2019-10-22 11:22:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:22:23,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2019-10-22 11:22:23,485 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 9 [2019-10-22 11:22:23,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,486 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2019-10-22 11:22:23,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,486 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2019-10-22 11:22:23,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:23,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,486 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,487 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:23,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,487 INFO L82 PathProgramCache]: Analyzing trace with hash -476618605, now seen corresponding path program 1 times [2019-10-22 11:22:23,487 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199968907] [2019-10-22 11:22:23,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,492 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199968907] [2019-10-22 11:22:23,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,599 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:23,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042102994] [2019-10-22 11:22:23,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:23,600 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:23,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:23,601 INFO L87 Difference]: Start difference. First operand 51 states and 61 transitions. Second operand 5 states. [2019-10-22 11:22:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,720 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2019-10-22 11:22:23,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:23,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-22 11:22:23,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,722 INFO L225 Difference]: With dead ends: 74 [2019-10-22 11:22:23,722 INFO L226 Difference]: Without dead ends: 74 [2019-10-22 11:22:23,723 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-10-22 11:22:23,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2019-10-22 11:22:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 11:22:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2019-10-22 11:22:23,727 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 9 [2019-10-22 11:22:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,733 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2019-10-22 11:22:23,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:23,733 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2019-10-22 11:22:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:22:23,734 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,734 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,734 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:23,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,735 INFO L82 PathProgramCache]: Analyzing trace with hash 629683418, now seen corresponding path program 1 times [2019-10-22 11:22:23,735 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327407880] [2019-10-22 11:22:23,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,818 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327407880] [2019-10-22 11:22:23,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:23,819 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898528059] [2019-10-22 11:22:23,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,820 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,820 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand 4 states. [2019-10-22 11:22:23,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,856 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2019-10-22 11:22:23,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 11:22:23,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,857 INFO L225 Difference]: With dead ends: 52 [2019-10-22 11:22:23,857 INFO L226 Difference]: Without dead ends: 52 [2019-10-22 11:22:23,857 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-22 11:22:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-10-22 11:22:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-22 11:22:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-10-22 11:22:23,865 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 10 [2019-10-22 11:22:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,866 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-10-22 11:22:23,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2019-10-22 11:22:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:22:23,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,867 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,867 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2019-10-22 11:22:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1226025170, now seen corresponding path program 1 times [2019-10-22 11:22:23,872 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002019310] [2019-10-22 11:22:23,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:24,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002019310] [2019-10-22 11:22:24,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628032640] [2019-10-22 11:22:24,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:24,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-22 11:22:24,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:24,100 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_16|], 1=[|v_#valid_24|]} [2019-10-22 11:22:24,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 11:22:24,123 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-10-22 11:22:24,124 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:24,137 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:24,150 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-10-22 11:22:24,150 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:24,163 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:24,164 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:22:24,165 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:24, output treesize:12 [2019-10-22 11:22:24,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:24,189 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:24,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:24,282 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [762151599] [2019-10-22 11:22:24,292 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 12 [2019-10-22 11:22:24,346 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:22:24,346 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:22:24,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:24,649 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) 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:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) 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:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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) [2019-10-22 11:22:24,654 INFO L168 Benchmark]: Toolchain (without parser) took 3528.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 937.8 MB in the beginning and 944.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,654 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:24,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:24,656 INFO L168 Benchmark]: Boogie Preprocessor took 57.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:24,658 INFO L168 Benchmark]: RCFGBuilder took 511.58 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,658 INFO L168 Benchmark]: TraceAbstraction took 2339.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.1 MB in the end (delta: 162.4 MB). Peak memory consumption was 162.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,661 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 555.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 511.58 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2339.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.1 MB in the end (delta: 162.4 MB). Peak memory consumption was 162.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:26,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:26,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:26,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:26,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:26,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:26,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:26,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:26,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:26,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:26,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:26,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:26,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:26,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:26,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:26,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:26,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:26,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:26,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:26,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:26,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:26,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:26,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:26,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:26,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:26,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:26,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:26,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:26,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:26,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:26,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:26,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:26,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:26,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:26,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:26,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:26,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:26,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:26,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:26,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:26,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:26,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:26,759 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:26,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:26,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:26,760 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:26,760 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:26,760 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:26,761 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:26,761 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:26,761 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:26,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:26,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:26,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:26,762 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:26,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:26,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:26,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:26,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:26,763 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:26,763 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:26,763 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:26,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:26,764 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:26,764 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:26,764 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:26,764 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:26,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:26,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:26,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:26,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:26,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:26,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:26,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:26,765 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:26,765 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:26,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:26,766 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6c219080-a09f-48c3-97de-94ebd65d8e99/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4732dd3bead498dcfa33caf242cd74b12e0ffa3 [2019-10-22 11:22:26,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:26,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:26,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:26,810 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:26,810 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:26,811 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i [2019-10-22 11:22:26,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/b7db9fdea/1f4cd4a3cc724d1d9ae14a1d79023f7e/FLAGaa0643e5c [2019-10-22 11:22:27,291 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:27,291 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/sv-benchmarks/c/array-memsafety/openbsd_cstrcspn-alloca-2.i [2019-10-22 11:22:27,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/b7db9fdea/1f4cd4a3cc724d1d9ae14a1d79023f7e/FLAGaa0643e5c [2019-10-22 11:22:27,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/data/b7db9fdea/1f4cd4a3cc724d1d9ae14a1d79023f7e [2019-10-22 11:22:27,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:27,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:27,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:27,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:27,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:27,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d982891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27, skipping insertion in model container [2019-10-22 11:22:27,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,330 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:27,359 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:27,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:27,722 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:27,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:27,823 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:27,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27 WrapperNode [2019-10-22 11:22:27,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:27,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:27,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:27,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:27,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:27,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:27,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:27,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:27,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... [2019-10-22 11:22:27,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:27,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:27,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:27,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:27,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-10-22 11:22:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-10-22 11:22:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:28,328 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:28,328 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:22:28,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:28 BoogieIcfgContainer [2019-10-22 11:22:28,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:28,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:28,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:28,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:28,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:27" (1/3) ... [2019-10-22 11:22:28,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bbe8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:28, skipping insertion in model container [2019-10-22 11:22:28,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:27" (2/3) ... [2019-10-22 11:22:28,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bbe8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:28, skipping insertion in model container [2019-10-22 11:22:28,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:28" (3/3) ... [2019-10-22 11:22:28,336 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcspn-alloca-2.i [2019-10-22 11:22:28,342 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:28,348 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2019-10-22 11:22:28,354 INFO L249 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2019-10-22 11:22:28,368 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:28,368 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:22:28,368 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:28,368 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:28,368 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:28,368 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:28,369 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:28,369 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-22 11:22:28,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:22:28,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:28,387 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:28,389 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2019-10-22 11:22:28,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:28,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2019-10-22 11:22:28,401 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:28,401 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [90783388] [2019-10-22 11:22:28,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c219080-a09f-48c3-97de-94ebd65d8e99/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:28,636 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:28,637 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort FloatRoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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) [2019-10-22 11:22:28,641 INFO L168 Benchmark]: Toolchain (without parser) took 1325.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -119.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:28,642 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:28,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:28,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.44 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:28,643 INFO L168 Benchmark]: Boogie Preprocessor took 32.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:28,644 INFO L168 Benchmark]: RCFGBuilder took 430.66 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:28,644 INFO L168 Benchmark]: TraceAbstraction took 309.27 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:28,646 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 507.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.44 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 430.66 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 309.27 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort FloatRoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...