./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/quick_sort_split.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/quick_sort_split.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e29cb2168e7bab34fbc89c12b0474d2c34d77836 .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 12:12:37,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 12:12:37,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 12:12:37,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 12:12:37,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 12:12:37,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 12:12:37,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 12:12:37,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 12:12:37,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 12:12:37,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 12:12:37,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 12:12:37,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 12:12:37,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 12:12:37,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 12:12:37,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 12:12:37,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 12:12:37,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 12:12:37,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 12:12:37,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 12:12:37,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 12:12:37,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 12:12:37,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 12:12:37,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 12:12:37,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 12:12:37,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 12:12:37,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 12:12:37,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 12:12:37,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 12:12:37,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 12:12:37,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 12:12:37,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 12:12:37,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 12:12:37,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 12:12:37,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 12:12:37,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 12:12:37,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 12:12:37,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 12:12:37,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 12:12:37,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 12:12:37,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 12:12:37,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 12:12:37,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 12:12:37,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 12:12:37,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 12:12:37,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 12:12:37,639 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 12:12:37,640 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 12:12:37,640 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 12:12:37,640 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 12:12:37,640 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 12:12:37,640 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 12:12:37,641 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 12:12:37,641 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 12:12:37,641 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 12:12:37,641 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 12:12:37,641 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 12:12:37,642 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 12:12:37,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 12:12:37,642 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 12:12:37,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 12:12:37,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 12:12:37,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 12:12:37,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 12:12:37,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 12:12:37,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 12:12:37,644 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 12:12:37,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 12:12:37,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 12:12:37,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 12:12:37,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 12:12:37,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 12:12:37,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 12:12:37,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:12:37,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 12:12:37,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 12:12:37,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 12:12:37,646 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 12:12:37,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 12:12:37,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 12:12:37,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 12:12:37,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 12:12:37,647 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e29cb2168e7bab34fbc89c12b0474d2c34d77836 [2020-12-09 12:12:37,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 12:12:37,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 12:12:37,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 12:12:37,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 12:12:37,845 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 12:12:37,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/../../sv-benchmarks/c/heap-data/quick_sort_split.i [2020-12-09 12:12:37,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/data/77a668fd6/1138927a7a8a4421bffe8c07a7002df7/FLAG2e247da90 [2020-12-09 12:12:38,280 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 12:12:38,281 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/sv-benchmarks/c/heap-data/quick_sort_split.i [2020-12-09 12:12:38,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/data/77a668fd6/1138927a7a8a4421bffe8c07a7002df7/FLAG2e247da90 [2020-12-09 12:12:38,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/data/77a668fd6/1138927a7a8a4421bffe8c07a7002df7 [2020-12-09 12:12:38,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 12:12:38,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 12:12:38,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 12:12:38,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 12:12:38,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 12:12:38,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0ac6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38, skipping insertion in model container [2020-12-09 12:12:38,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 12:12:38,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 12:12:38,543 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/sv-benchmarks/c/heap-data/quick_sort_split.i[23986,23999] [2020-12-09 12:12:38,546 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/sv-benchmarks/c/heap-data/quick_sort_split.i[24106,24119] [2020-12-09 12:12:38,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:12:38,553 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 12:12:38,582 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/sv-benchmarks/c/heap-data/quick_sort_split.i[23986,23999] [2020-12-09 12:12:38,583 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/sv-benchmarks/c/heap-data/quick_sort_split.i[24106,24119] [2020-12-09 12:12:38,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:12:38,618 INFO L208 MainTranslator]: Completed translation [2020-12-09 12:12:38,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38 WrapperNode [2020-12-09 12:12:38,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 12:12:38,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 12:12:38,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 12:12:38,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 12:12:38,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 12:12:38,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 12:12:38,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 12:12:38,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 12:12:38,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... [2020-12-09 12:12:38,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 12:12:38,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 12:12:38,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 12:12:38,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 12:12:38,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:12:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 12:12:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 12:12:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 12:12:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 12:12:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 12:12:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 12:12:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 12:12:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 12:12:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 12:12:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 12:12:38,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 12:12:39,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 12:12:39,200 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 12:12:39,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:39 BoogieIcfgContainer [2020-12-09 12:12:39,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 12:12:39,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 12:12:39,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 12:12:39,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 12:12:39,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:12:38" (1/3) ... [2020-12-09 12:12:39,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106998fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:39, skipping insertion in model container [2020-12-09 12:12:39,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:38" (2/3) ... [2020-12-09 12:12:39,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106998fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:39, skipping insertion in model container [2020-12-09 12:12:39,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:39" (3/3) ... [2020-12-09 12:12:39,209 INFO L111 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2020-12-09 12:12:39,221 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 12:12:39,224 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 12:12:39,231 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 12:12:39,247 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 12:12:39,247 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 12:12:39,247 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 12:12:39,247 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 12:12:39,247 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 12:12:39,247 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 12:12:39,247 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 12:12:39,247 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 12:12:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 12:12:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 12:12:39,259 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:12:39,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:12:39,260 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:12:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:12:39,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1046386381, now seen corresponding path program 1 times [2020-12-09 12:12:39,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:12:39,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629050187] [2020-12-09 12:12:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:12:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:12:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:12:39,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629050187] [2020-12-09 12:12:39,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:12:39,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 12:12:39,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552272097] [2020-12-09 12:12:39,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 12:12:39,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:12:39,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 12:12:39,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 12:12:39,381 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-12-09 12:12:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:12:39,394 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2020-12-09 12:12:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 12:12:39,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 12:12:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:12:39,400 INFO L225 Difference]: With dead ends: 29 [2020-12-09 12:12:39,400 INFO L226 Difference]: Without dead ends: 15 [2020-12-09 12:12:39,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 12:12:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-09 12:12:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-09 12:12:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-09 12:12:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-12-09 12:12:39,432 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 7 [2020-12-09 12:12:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:12:39,432 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-12-09 12:12:39,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 12:12:39,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-09 12:12:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 12:12:39,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:12:39,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:12:39,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 12:12:39,433 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:12:39,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:12:39,434 INFO L82 PathProgramCache]: Analyzing trace with hash -770101000, now seen corresponding path program 1 times [2020-12-09 12:12:39,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:12:39,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162224120] [2020-12-09 12:12:39,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:12:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:12:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:12:39,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162224120] [2020-12-09 12:12:39,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:12:39,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 12:12:39,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062511663] [2020-12-09 12:12:39,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:12:39,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:12:39,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:12:39,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:12:39,479 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 3 states. [2020-12-09 12:12:39,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:12:39,490 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-12-09 12:12:39,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:12:39,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-09 12:12:39,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:12:39,491 INFO L225 Difference]: With dead ends: 21 [2020-12-09 12:12:39,491 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 12:12:39,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:12:39,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 12:12:39,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-09 12:12:39,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 12:12:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-12-09 12:12:39,493 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2020-12-09 12:12:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:12:39,493 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-12-09 12:12:39,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:12:39,494 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-09 12:12:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 12:12:39,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:12:39,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:12:39,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 12:12:39,494 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:12:39,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:12:39,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1898000583, now seen corresponding path program 1 times [2020-12-09 12:12:39,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:12:39,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987763093] [2020-12-09 12:12:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:12:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:12:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:12:39,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987763093] [2020-12-09 12:12:39,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:12:39,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 12:12:39,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709271547] [2020-12-09 12:12:39,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:12:39,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:12:39,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:12:39,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:12:39,526 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-12-09 12:12:39,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:12:39,531 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-12-09 12:12:39,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:12:39,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 12:12:39,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:12:39,532 INFO L225 Difference]: With dead ends: 12 [2020-12-09 12:12:39,532 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 12:12:39,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:12:39,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 12:12:39,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 12:12:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 12:12:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 12:12:39,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-12-09 12:12:39,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:12:39,533 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 12:12:39,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:12:39,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 12:12:39,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 12:12:39,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 12:12:39,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 12:12:39,550 INFO L262 CegarLoopResult]: For program point L609(lines 609 610) no Hoare annotation was computed. [2020-12-09 12:12:39,550 INFO L262 CegarLoopResult]: For program point L609-2(lines 609 610) no Hoare annotation was computed. [2020-12-09 12:12:39,550 INFO L262 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-12-09 12:12:39,550 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 610) no Hoare annotation was computed. [2020-12-09 12:12:39,551 INFO L262 CegarLoopResult]: For program point L610(line 610) no Hoare annotation was computed. [2020-12-09 12:12:39,551 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 12:12:39,551 INFO L265 CegarLoopResult]: At program point L573-1(lines 573 588) the Hoare annotation is: true [2020-12-09 12:12:39,551 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 605) no Hoare annotation was computed. [2020-12-09 12:12:39,551 INFO L262 CegarLoopResult]: For program point L582-1(lines 582 588) no Hoare annotation was computed. [2020-12-09 12:12:39,551 INFO L265 CegarLoopResult]: At program point L582-3(lines 582 588) the Hoare annotation is: true [2020-12-09 12:12:39,551 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 12:12:39,552 INFO L262 CegarLoopResult]: For program point L603-1(lines 591 613) no Hoare annotation was computed. [2020-12-09 12:12:39,552 INFO L262 CegarLoopResult]: For program point L608-1(lines 591 613) no Hoare annotation was computed. [2020-12-09 12:12:39,552 INFO L262 CegarLoopResult]: For program point L604(lines 604 605) no Hoare annotation was computed. [2020-12-09 12:12:39,552 INFO L262 CegarLoopResult]: For program point L604-2(lines 604 605) no Hoare annotation was computed. [2020-12-09 12:12:39,552 INFO L258 CegarLoopResult]: At program point L596-2(lines 596 602) the Hoare annotation is: (and (= ULTIMATE.start_main_~high~0.base 0) (= ULTIMATE.start_main_~low~0.offset 0) (= ULTIMATE.start_main_~high~0.offset 0) (= ULTIMATE.start_main_~low~0.base 0)) [2020-12-09 12:12:39,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:12:39 BoogieIcfgContainer [2020-12-09 12:12:39,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 12:12:39,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 12:12:39,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 12:12:39,564 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 12:12:39,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:39" (3/4) ... [2020-12-09 12:12:39,567 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 12:12:39,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-09 12:12:39,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 12:12:39,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 12:12:39,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 12:12:39,611 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d7419d8-685e-4526-bf9c-22397dfa8d86/bin/utaipan/witness.graphml [2020-12-09 12:12:39,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 12:12:39,612 INFO L168 Benchmark]: Toolchain (without parser) took 1308.14 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 68.5 MB in the beginning and 75.1 MB in the end (delta: -6.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-12-09 12:12:39,613 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 53.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:12:39,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.70 ms. Allocated memory is still 96.5 MB. Free memory was 68.3 MB in the beginning and 58.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 12:12:39,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 96.5 MB. Free memory was 58.7 MB in the beginning and 56.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:12:39,614 INFO L168 Benchmark]: Boogie Preprocessor took 21.10 ms. Allocated memory is still 96.5 MB. Free memory was 56.7 MB in the beginning and 55.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:12:39,614 INFO L168 Benchmark]: RCFGBuilder took 530.77 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 54.9 MB in the beginning and 71.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2020-12-09 12:12:39,614 INFO L168 Benchmark]: TraceAbstraction took 360.01 ms. Allocated memory is still 119.5 MB. Free memory was 71.7 MB in the beginning and 78.2 MB in the end (delta: -6.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:12:39,614 INFO L168 Benchmark]: Witness Printer took 47.14 ms. Allocated memory is still 119.5 MB. Free memory was 78.2 MB in the beginning and 75.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:12:39,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 53.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.70 ms. Allocated memory is still 96.5 MB. Free memory was 68.3 MB in the beginning and 58.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 96.5 MB. Free memory was 58.7 MB in the beginning and 56.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.10 ms. Allocated memory is still 96.5 MB. Free memory was 56.7 MB in the beginning and 55.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 530.77 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 54.9 MB in the beginning and 71.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 360.01 ms. Allocated memory is still 119.5 MB. Free memory was 71.7 MB in the beginning and 78.2 MB in the end (delta: -6.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 47.14 ms. Allocated memory is still 119.5 MB. Free memory was 78.2 MB in the beginning and 75.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 610]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 605]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: ((high == 0 && low == 0) && high == 0) && low == 0 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...