./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/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 3187b9137fe836a772e635b057217bb3e86134c2 .................................................................................................................................................................................................................................................................................................................................................................... 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/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/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 3187b9137fe836a772e635b057217bb3e86134c2 ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:25:06,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:25:06,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:25:06,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:25:06,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:25:06,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:25:06,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:25:06,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:25:06,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:25:06,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:25:06,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:25:06,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:25:06,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:25:06,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:25:06,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:25:06,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:25:06,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:25:06,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:25:06,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:25:06,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:25:06,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:25:06,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:25:06,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:25:06,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:25:06,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:25:06,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:25:06,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:25:06,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:25:06,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:25:06,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:25:06,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:25:06,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:25:06,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:25:06,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:25:06,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:25:06,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:25:06,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:25:06,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:25:06,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:25:06,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:25:06,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:25:06,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 16:25:06,437 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:25:06,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:25:06,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:25:06,437 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:25:06,438 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:25:06,438 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:25:06,438 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:25:06,438 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:25:06,438 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:25:06,438 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:25:06,438 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:25:06,438 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:25:06,438 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:25:06,439 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:25:06,439 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:25:06,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:25:06,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:25:06,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:25:06,439 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:25:06,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:25:06,440 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:25:06,441 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:25:06,441 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:25:06,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:25:06,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:25:06,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:25:06,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:25:06,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:25:06,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:25:06,442 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:25:06,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:25:06,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:25:06,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:25:06,442 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/run_dir_cf852308-870b-4af5-ab24-e030b565be29/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 -> 3187b9137fe836a772e635b057217bb3e86134c2 [2019-12-07 16:25:06,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:25:06,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:25:06,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:25:06,552 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:25:06,552 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:25:06,553 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 16:25:06,589 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/120d9b762/891f4345a92d48da8d0e9e23ed18ec1e/FLAG31bc2d14a [2019-12-07 16:25:07,068 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:25:07,069 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 16:25:07,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/120d9b762/891f4345a92d48da8d0e9e23ed18ec1e/FLAG31bc2d14a [2019-12-07 16:25:07,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/120d9b762/891f4345a92d48da8d0e9e23ed18ec1e [2019-12-07 16:25:07,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:25:07,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:25:07,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:25:07,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:25:07,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:25:07,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3dc179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07, skipping insertion in model container [2019-12-07 16:25:07,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:25:07,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:25:07,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:25:07,319 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:25:07,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:25:07,380 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:25:07,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07 WrapperNode [2019-12-07 16:25:07,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:25:07,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:25:07,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:25:07,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:25:07,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:25:07,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:25:07,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:25:07,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:25:07,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... [2019-12-07 16:25:07,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:25:07,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:25:07,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:25:07,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:25:07,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/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 [2019-12-07 16:25:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:25:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:25:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 16:25:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 16:25:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:25:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:25:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:25:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:25:07,646 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:25:07,647 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 16:25:07,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:25:07 BoogieIcfgContainer [2019-12-07 16:25:07,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:25:07,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:25:07,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:25:07,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:25:07,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:25:07" (1/3) ... [2019-12-07 16:25:07,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183b2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:25:07, skipping insertion in model container [2019-12-07 16:25:07,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:07" (2/3) ... [2019-12-07 16:25:07,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183b2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:25:07, skipping insertion in model container [2019-12-07 16:25:07,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:25:07" (3/3) ... [2019-12-07 16:25:07,652 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2019-12-07 16:25:07,658 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:25:07,663 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-12-07 16:25:07,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-12-07 16:25:07,681 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:25:07,682 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 16:25:07,682 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:25:07,682 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:25:07,682 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:25:07,682 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:25:07,682 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:25:07,682 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:25:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-07 16:25:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-07 16:25:07,695 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:07,695 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-12-07 16:25:07,696 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2081, now seen corresponding path program 1 times [2019-12-07 16:25:07,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:25:07,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255003917] [2019-12-07 16:25:07,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:25:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:25:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:07,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255003917] [2019-12-07 16:25:07,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:25:07,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 16:25:07,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807929943] [2019-12-07 16:25:07,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:25:07,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:25:07,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:25:07,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:25:07,824 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-12-07 16:25:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:25:07,859 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-12-07 16:25:07,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:25:07,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-12-07 16:25:07,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:25:07,866 INFO L225 Difference]: With dead ends: 17 [2019-12-07 16:25:07,867 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 16:25:07,868 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:25:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 16:25:07,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 16:25:07,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 16:25:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-12-07 16:25:07,888 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 2 [2019-12-07 16:25:07,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:25:07,888 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-12-07 16:25:07,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:25:07,888 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-12-07 16:25:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-07 16:25:07,888 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:07,888 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-12-07 16:25:07,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:07,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:07,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2082, now seen corresponding path program 1 times [2019-12-07 16:25:07,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:25:07,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080775232] [2019-12-07 16:25:07,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:25:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:25:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:07,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080775232] [2019-12-07 16:25:07,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:25:07,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 16:25:07,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847297593] [2019-12-07 16:25:07,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:25:07,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:25:07,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:25:07,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:25:07,917 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2019-12-07 16:25:07,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:25:07,934 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-12-07 16:25:07,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:25:07,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-12-07 16:25:07,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:25:07,935 INFO L225 Difference]: With dead ends: 11 [2019-12-07 16:25:07,935 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 16:25:07,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:25:07,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 16:25:07,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 16:25:07,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 16:25:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-12-07 16:25:07,937 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 2 [2019-12-07 16:25:07,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:25:07,937 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-12-07 16:25:07,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:25:07,937 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-12-07 16:25:07,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:25:07,938 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:07,938 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:25:07,938 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:07,938 INFO L82 PathProgramCache]: Analyzing trace with hash 437069424, now seen corresponding path program 1 times [2019-12-07 16:25:07,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:25:07,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410972829] [2019-12-07 16:25:07,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:25:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:25:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:07,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410972829] [2019-12-07 16:25:07,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:25:07,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 16:25:07,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620619827] [2019-12-07 16:25:07,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:25:07,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:25:07,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:25:07,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:25:07,973 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 4 states. [2019-12-07 16:25:08,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:25:08,002 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-12-07 16:25:08,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:25:08,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 16:25:08,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:25:08,003 INFO L225 Difference]: With dead ends: 15 [2019-12-07 16:25:08,003 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 16:25:08,003 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:25:08,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 16:25:08,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2019-12-07 16:25:08,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 16:25:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-12-07 16:25:08,006 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2019-12-07 16:25:08,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:25:08,006 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-12-07 16:25:08,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:25:08,006 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-12-07 16:25:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:25:08,006 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:08,006 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:25:08,007 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:08,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:08,007 INFO L82 PathProgramCache]: Analyzing trace with hash 584832784, now seen corresponding path program 1 times [2019-12-07 16:25:08,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:25:08,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571160119] [2019-12-07 16:25:08,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:25:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:25:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:25:08,047 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 16:25:08,047 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:25:08,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:25:08 BoogieIcfgContainer [2019-12-07 16:25:08,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:25:08,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:25:08,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:25:08,061 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:25:08,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:25:07" (3/4) ... [2019-12-07 16:25:08,064 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:25:08,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:25:08,066 INFO L168 Benchmark]: Toolchain (without parser) took 972.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -79.3 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:08,066 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:25:08,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:08,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:25:08,068 INFO L168 Benchmark]: Boogie Preprocessor took 16.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:08,068 INFO L168 Benchmark]: RCFGBuilder took 221.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:08,069 INFO L168 Benchmark]: TraceAbstraction took 412.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:08,069 INFO L168 Benchmark]: Witness Printer took 2.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:25:08,072 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 221.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 412.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 513]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 513. Possible FailurePath: [L515-L522] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L523] data.p0 = malloc(37U) [L524] COND FALSE !(__VERIFIER_nondet_int()) [L527] data.str.p2 = 30 [L529] EXPR data.str.p2 [L529] COND FALSE !(25 > data.str.p2) [L532] return 0; [L532] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 11 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 24 SDslu, 13 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 16:25:09,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:25:09,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:25:09,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:25:09,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:25:09,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:25:09,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:25:09,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:25:09,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:25:09,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:25:09,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:25:09,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:25:09,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:25:09,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:25:09,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:25:09,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:25:09,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:25:09,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:25:09,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:25:09,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:25:09,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:25:09,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:25:09,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:25:09,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:25:09,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:25:09,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:25:09,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:25:09,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:25:09,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:25:09,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:25:09,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:25:09,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:25:09,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:25:09,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:25:09,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:25:09,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:25:09,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:25:09,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:25:09,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:25:09,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:25:09,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:25:09,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 16:25:09,506 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:25:09,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:25:09,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:25:09,506 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:25:09,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:25:09,507 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:25:09,507 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:25:09,507 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:25:09,507 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:25:09,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:25:09,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:25:09,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:25:09,508 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:25:09,508 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:25:09,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:25:09,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:25:09,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:25:09,509 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:25:09,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:25:09,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:25:09,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:25:09,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:25:09,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:25:09,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:25:09,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:25:09,511 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:25:09,511 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:25:09,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:25:09,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:25:09,511 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/run_dir_cf852308-870b-4af5-ab24-e030b565be29/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 -> 3187b9137fe836a772e635b057217bb3e86134c2 [2019-12-07 16:25:09,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:25:09,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:25:09,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:25:09,683 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:25:09,683 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:25:09,684 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 16:25:09,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/680d533d2/6496338a9c18441e99395b6c63997bc2/FLAG974b24ef4 [2019-12-07 16:25:10,099 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:25:10,099 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 16:25:10,111 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/680d533d2/6496338a9c18441e99395b6c63997bc2/FLAG974b24ef4 [2019-12-07 16:25:10,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/data/680d533d2/6496338a9c18441e99395b6c63997bc2 [2019-12-07 16:25:10,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:25:10,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:25:10,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:25:10,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:25:10,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:25:10,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1d457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10, skipping insertion in model container [2019-12-07 16:25:10,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:25:10,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:25:10,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:25:10,398 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:25:10,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:25:10,477 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:25:10,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10 WrapperNode [2019-12-07 16:25:10,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:25:10,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:25:10,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:25:10,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:25:10,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:25:10,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:25:10,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:25:10,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:25:10,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... [2019-12-07 16:25:10,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:25:10,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:25:10,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:25:10,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:25:10,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/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 [2019-12-07 16:25:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 16:25:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 16:25:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 16:25:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:25:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-12-07 16:25:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:25:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 16:25:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:25:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:25:10,769 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:25:10,769 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 16:25:10,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:25:10 BoogieIcfgContainer [2019-12-07 16:25:10,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:25:10,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:25:10,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:25:10,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:25:10,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:25:10" (1/3) ... [2019-12-07 16:25:10,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61299ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:25:10, skipping insertion in model container [2019-12-07 16:25:10,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:25:10" (2/3) ... [2019-12-07 16:25:10,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61299ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:25:10, skipping insertion in model container [2019-12-07 16:25:10,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:25:10" (3/3) ... [2019-12-07 16:25:10,775 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2019-12-07 16:25:10,781 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:25:10,785 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-12-07 16:25:10,793 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-12-07 16:25:10,804 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:25:10,805 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 16:25:10,805 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:25:10,805 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:25:10,805 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:25:10,805 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:25:10,805 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:25:10,805 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:25:10,813 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-12-07 16:25:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 16:25:10,818 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:10,818 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 16:25:10,819 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:10,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:10,822 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2019-12-07 16:25:10,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:25:10,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031391796] [2019-12-07 16:25:10,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 16:25:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:25:10,875 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:25:10,878 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:25:10,928 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-12-07 16:25:10,929 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 16:25:10,929 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:25:10,935 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:25:10,937 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 16:25:10,937 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-12-07 16:25:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:10,950 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:25:10,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:10,956 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031391796] [2019-12-07 16:25:10,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:25:10,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:25:10,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34095688] [2019-12-07 16:25:10,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:25:10,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:25:10,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:25:10,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:25:10,973 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2019-12-07 16:25:11,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:25:11,036 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-12-07 16:25:11,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:25:11,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 16:25:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:25:11,044 INFO L225 Difference]: With dead ends: 19 [2019-12-07 16:25:11,044 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 16:25:11,045 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:25:11,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 16:25:11,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 16:25:11,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 16:25:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-12-07 16:25:11,066 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 3 [2019-12-07 16:25:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:25:11,066 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-12-07 16:25:11,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:25:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-12-07 16:25:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 16:25:11,066 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:11,066 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 16:25:11,267 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:25:11,267 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:11,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:11,268 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-12-07 16:25:11,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:25:11,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127039801] [2019-12-07 16:25:11,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 16:25:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:25:11,319 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:25:11,320 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:25:11,331 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_15|], 1=[|v_#valid_22|]} [2019-12-07 16:25:11,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:25:11,339 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2019-12-07 16:25:11,340 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:25:11,350 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:25:11,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:25:11,356 INFO L377 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 5 treesize of output 3 [2019-12-07 16:25:11,356 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:25:11,364 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:25:11,365 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 16:25:11,365 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2019-12-07 16:25:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:11,377 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:25:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:11,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127039801] [2019-12-07 16:25:11,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:25:11,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 16:25:11,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837686260] [2019-12-07 16:25:11,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:25:11,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:25:11,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:25:11,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:25:11,424 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-12-07 16:25:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:25:11,470 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-12-07 16:25:11,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:25:11,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-12-07 16:25:11,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:25:11,471 INFO L225 Difference]: With dead ends: 12 [2019-12-07 16:25:11,472 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 16:25:11,472 INFO L630 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 [2019-12-07 16:25:11,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 16:25:11,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 16:25:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 16:25:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-12-07 16:25:11,475 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 3 [2019-12-07 16:25:11,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:25:11,475 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-12-07 16:25:11,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:25:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-12-07 16:25:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:25:11,476 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:11,476 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:25:11,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:25:11,677 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:11,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:11,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1894559917, now seen corresponding path program 1 times [2019-12-07 16:25:11,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:25:11,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700190895] [2019-12-07 16:25:11,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 16:25:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:25:11,729 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:25:11,730 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:25:11,734 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-12-07 16:25:11,735 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:25:11,737 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:25:11,738 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:25:11,738 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-12-07 16:25:11,748 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 9 [2019-12-07 16:25:11,749 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:25:11,751 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:25:11,751 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:25:11,751 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2019-12-07 16:25:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:11,759 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:25:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:25:11,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700190895] [2019-12-07 16:25:11,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:25:11,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 16:25:11,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592044018] [2019-12-07 16:25:11,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:25:11,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:25:11,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:25:11,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:25:11,781 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 6 states. [2019-12-07 16:25:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:25:11,873 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-12-07 16:25:11,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:25:11,874 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-12-07 16:25:11,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:25:11,875 INFO L225 Difference]: With dead ends: 16 [2019-12-07 16:25:11,875 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 16:25:11,876 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:25:11,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 16:25:11,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2019-12-07 16:25:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 16:25:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-07 16:25:11,879 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2019-12-07 16:25:11,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:25:11,879 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-07 16:25:11,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:25:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-07 16:25:11,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:25:11,880 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:25:11,880 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:25:12,081 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:25:12,081 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 16:25:12,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:25:12,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2042323277, now seen corresponding path program 1 times [2019-12-07 16:25:12,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:25:12,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077397878] [2019-12-07 16:25:12,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf852308-870b-4af5-ab24-e030b565be29/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 16:25:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:25:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:25:12,155 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 16:25:12,155 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:25:12,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:25:12,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:25:12 BoogieIcfgContainer [2019-12-07 16:25:12,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:25:12,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:25:12,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:25:12,384 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:25:12,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:25:10" (3/4) ... [2019-12-07 16:25:12,389 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:25:12,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:25:12,391 INFO L168 Benchmark]: Toolchain (without parser) took 2265.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 947.0 MB in the beginning and 958.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:12,391 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:25:12,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:12,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:12,393 INFO L168 Benchmark]: Boogie Preprocessor took 18.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:25:12,394 INFO L168 Benchmark]: RCFGBuilder took 243.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:12,394 INFO L168 Benchmark]: TraceAbstraction took 1612.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.5 MB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:25:12,395 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 1.1 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:25:12,397 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 351.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1612.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.5 MB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.48 ms. Allocated memory is still 1.1 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 513]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 513. Possible FailurePath: [L515-L522] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L523] data.p0 = malloc(37U) [L524] COND FALSE !(__VERIFIER_nondet_int()) [L527] data.str.p2 = 30 [L529] EXPR data.str.p2 [L529] COND FALSE !(25 > data.str.p2) [L532] return 0; [L532] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 11 error locations. Result: UNSAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 24 SDslu, 33 SDs, 0 SdLazy, 53 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 420 SizeOfPredicates, 8 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...