./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/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 83c475b885cdccfa599beaea0eafb561d0387d6b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/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 83c475b885cdccfa599beaea0eafb561d0387d6b ........................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:13,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:13,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:13,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:13,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:13,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:13,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:13,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:13,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:13,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:13,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:13,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:13,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:13,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:13,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:13,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:13,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:13,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:13,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:13,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:13,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:13,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:13,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:13,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:13,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:13,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:13,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:13,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:13,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:13,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:13,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:13,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:13,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:13,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:13,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:13,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:13,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:13,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:13,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:13,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:13,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:13,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:27:13,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:13,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:13,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:13,447 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:13,447 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:13,447 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:13,447 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:13,447 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:13,447 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:13,448 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:13,448 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:13,448 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:13,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:27:13,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:27:13,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:13,449 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:13,449 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:27:13,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:13,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:13,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:13,450 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:27:13,450 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:27:13,451 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:27:13,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:13,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:13,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:13,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:13,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:13,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:13,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:13,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:13,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:13,452 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:13,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:13,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:13,453 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/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 -> 83c475b885cdccfa599beaea0eafb561d0387d6b [2019-10-22 11:27:13,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:13,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:13,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:13,493 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:13,494 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:13,494 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2019-10-22 11:27:13,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/929f90d7b/ef9784e84b654701a19fcd7f39223164/FLAG8d6238432 [2019-10-22 11:27:13,991 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:13,991 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2019-10-22 11:27:14,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/929f90d7b/ef9784e84b654701a19fcd7f39223164/FLAG8d6238432 [2019-10-22 11:27:14,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/929f90d7b/ef9784e84b654701a19fcd7f39223164 [2019-10-22 11:27:14,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:14,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:14,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:14,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:14,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:14,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:14" (1/1) ... [2019-10-22 11:27:14,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de1ca19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:14, skipping insertion in model container [2019-10-22 11:27:14,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:14" (1/1) ... [2019-10-22 11:27:14,531 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:14,579 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:15,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:15,077 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:15,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:15,209 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:15,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15 WrapperNode [2019-10-22 11:27:15,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:15,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:15,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:15,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:15,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:15,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:15,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:15,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:15,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... [2019-10-22 11:27:15,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:15,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:15,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:15,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:15,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:27:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:27:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:27:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:27:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:27:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:27:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:27:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:15,724 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:15,724 INFO L284 CfgBuilder]: Removed 34 assume(true) statements. [2019-10-22 11:27:15,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:15 BoogieIcfgContainer [2019-10-22 11:27:15,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:15,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:15,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:15,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:15,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:14" (1/3) ... [2019-10-22 11:27:15,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46827d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:15, skipping insertion in model container [2019-10-22 11:27:15,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:15" (2/3) ... [2019-10-22 11:27:15,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46827d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:15, skipping insertion in model container [2019-10-22 11:27:15,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:15" (3/3) ... [2019-10-22 11:27:15,745 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-2.i [2019-10-22 11:27:15,753 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:15,761 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2019-10-22 11:27:15,770 INFO L249 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2019-10-22 11:27:15,787 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:15,787 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:27:15,788 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:15,788 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:15,788 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:15,788 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:15,788 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:15,788 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-10-22 11:27:15,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:27:15,814 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:15,815 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:27:15,816 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:15,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:15,824 INFO L82 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2019-10-22 11:27:15,832 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:15,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332840994] [2019-10-22 11:27:15,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:15,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:15,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:16,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332840994] [2019-10-22 11:27:16,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:16,065 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:16,065 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870821768] [2019-10-22 11:27:16,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:16,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:16,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:16,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:16,092 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 5 states. [2019-10-22 11:27:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,377 INFO L93 Difference]: Finished difference Result 164 states and 178 transitions. [2019-10-22 11:27:16,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:16,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-10-22 11:27:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,393 INFO L225 Difference]: With dead ends: 164 [2019-10-22 11:27:16,396 INFO L226 Difference]: Without dead ends: 156 [2019-10-22 11:27:16,398 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-10-22 11:27:16,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 61. [2019-10-22 11:27:16,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-10-22 11:27:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2019-10-22 11:27:16,433 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 6 [2019-10-22 11:27:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,434 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2019-10-22 11:27:16,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2019-10-22 11:27:16,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:27:16,434 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,435 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,435 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:16,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,435 INFO L82 PathProgramCache]: Analyzing trace with hash 889568358, now seen corresponding path program 1 times [2019-10-22 11:27:16,436 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:16,436 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972451049] [2019-10-22 11:27:16,436 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,436 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:16,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972451049] [2019-10-22 11:27:16,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:16,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:16,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559017294] [2019-10-22 11:27:16,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:16,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:16,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:16,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:16,486 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 4 states. [2019-10-22 11:27:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,515 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2019-10-22 11:27:16,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:16,515 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-10-22 11:27:16,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,517 INFO L225 Difference]: With dead ends: 127 [2019-10-22 11:27:16,517 INFO L226 Difference]: Without dead ends: 127 [2019-10-22 11:27:16,518 INFO L600 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 [2019-10-22 11:27:16,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-22 11:27:16,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 59. [2019-10-22 11:27:16,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-10-22 11:27:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2019-10-22 11:27:16,526 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 6 [2019-10-22 11:27:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,528 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2019-10-22 11:27:16,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:16,528 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2019-10-22 11:27:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:27:16,528 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,528 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,529 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:16,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1804968328, now seen corresponding path program 1 times [2019-10-22 11:27:16,529 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:16,529 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088803656] [2019-10-22 11:27:16,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:16,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088803656] [2019-10-22 11:27:16,617 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:16,617 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:27:16,617 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956839062] [2019-10-22 11:27:16,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:16,618 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:16,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:16,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:16,619 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 6 states. [2019-10-22 11:27:16,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,748 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2019-10-22 11:27:16,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:16,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-10-22 11:27:16,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,750 INFO L225 Difference]: With dead ends: 126 [2019-10-22 11:27:16,750 INFO L226 Difference]: Without dead ends: 126 [2019-10-22 11:27:16,750 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:27:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-22 11:27:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 58. [2019-10-22 11:27:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 11:27:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2019-10-22 11:27:16,755 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 7 [2019-10-22 11:27:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,756 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2019-10-22 11:27:16,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2019-10-22 11:27:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:16,756 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,756 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,757 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,757 INFO L82 PathProgramCache]: Analyzing trace with hash 119423029, now seen corresponding path program 1 times [2019-10-22 11:27:16,757 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:16,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968241019] [2019-10-22 11:27:16,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:16,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968241019] [2019-10-22 11:27:16,786 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:16,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:16,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381864284] [2019-10-22 11:27:16,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:16,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:16,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:16,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:16,788 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 4 states. [2019-10-22 11:27:16,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,807 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2019-10-22 11:27:16,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:16,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 11:27:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,808 INFO L225 Difference]: With dead ends: 92 [2019-10-22 11:27:16,808 INFO L226 Difference]: Without dead ends: 92 [2019-10-22 11:27:16,809 INFO L600 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 [2019-10-22 11:27:16,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-22 11:27:16,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 58. [2019-10-22 11:27:16,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 11:27:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2019-10-22 11:27:16,812 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 8 [2019-10-22 11:27:16,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,813 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2019-10-22 11:27:16,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:16,813 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2019-10-22 11:27:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:16,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,813 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,814 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,814 INFO L82 PathProgramCache]: Analyzing trace with hash 176681331, now seen corresponding path program 1 times [2019-10-22 11:27:16,814 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:16,815 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601382320] [2019-10-22 11:27:16,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:16,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601382320] [2019-10-22 11:27:16,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:16,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:16,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089829461] [2019-10-22 11:27:16,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:16,839 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:16,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:16,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:16,840 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand 3 states. [2019-10-22 11:27:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,879 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2019-10-22 11:27:16,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:16,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 11:27:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,881 INFO L225 Difference]: With dead ends: 83 [2019-10-22 11:27:16,881 INFO L226 Difference]: Without dead ends: 80 [2019-10-22 11:27:16,881 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-10-22 11:27:16,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2019-10-22 11:27:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 11:27:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2019-10-22 11:27:16,885 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 8 [2019-10-22 11:27:16,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,885 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2019-10-22 11:27:16,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:16,885 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2019-10-22 11:27:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:16,886 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,886 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,886 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:16,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,887 INFO L82 PathProgramCache]: Analyzing trace with hash 176679857, now seen corresponding path program 1 times [2019-10-22 11:27:16,887 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:16,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576261044] [2019-10-22 11:27:16,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:16,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576261044] [2019-10-22 11:27:16,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:16,937 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:16,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087963548] [2019-10-22 11:27:16,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:16,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:16,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:16,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:16,938 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand 4 states. [2019-10-22 11:27:16,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,968 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2019-10-22 11:27:16,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:16,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 11:27:16,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,972 INFO L225 Difference]: With dead ends: 62 [2019-10-22 11:27:16,972 INFO L226 Difference]: Without dead ends: 58 [2019-10-22 11:27:16,972 INFO L600 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 [2019-10-22 11:27:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-22 11:27:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-10-22 11:27:16,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-10-22 11:27:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2019-10-22 11:27:16,975 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 8 [2019-10-22 11:27:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,976 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2019-10-22 11:27:16,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2019-10-22 11:27:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:27:16,976 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,976 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,977 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash 820865718, now seen corresponding path program 1 times [2019-10-22 11:27:16,977 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:16,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708956145] [2019-10-22 11:27:16,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:16,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:17,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708956145] [2019-10-22 11:27:17,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:17,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:17,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037388698] [2019-10-22 11:27:17,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:27:17,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:17,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:27:17,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:17,079 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 7 states. [2019-10-22 11:27:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:17,289 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2019-10-22 11:27:17,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:17,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-10-22 11:27:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:17,290 INFO L225 Difference]: With dead ends: 113 [2019-10-22 11:27:17,291 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:27:17,291 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:17,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:27:17,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 55. [2019-10-22 11:27:17,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 11:27:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-10-22 11:27:17,301 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 12 [2019-10-22 11:27:17,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:17,302 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2019-10-22 11:27:17,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:27:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2019-10-22 11:27:17,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:27:17,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:17,303 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:17,304 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:17,304 INFO L82 PathProgramCache]: Analyzing trace with hash 820865719, now seen corresponding path program 1 times [2019-10-22 11:27:17,304 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:17,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44979379] [2019-10-22 11:27:17,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:17,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44979379] [2019-10-22 11:27:17,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:17,366 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:17,366 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295257926] [2019-10-22 11:27:17,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:17,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:17,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:17,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:17,367 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 4 states. [2019-10-22 11:27:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:17,380 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2019-10-22 11:27:17,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:17,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-22 11:27:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:17,382 INFO L225 Difference]: With dead ends: 56 [2019-10-22 11:27:17,382 INFO L226 Difference]: Without dead ends: 56 [2019-10-22 11:27:17,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-10-22 11:27:17,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-10-22 11:27:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-10-22 11:27:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2019-10-22 11:27:17,385 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 12 [2019-10-22 11:27:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:17,385 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2019-10-22 11:27:17,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2019-10-22 11:27:17,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 11:27:17,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:17,387 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:17,387 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:17,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:17,387 INFO L82 PathProgramCache]: Analyzing trace with hash -382225645, now seen corresponding path program 1 times [2019-10-22 11:27:17,388 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:17,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942523492] [2019-10-22 11:27:17,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:17,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942523492] [2019-10-22 11:27:17,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:17,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:27:17,513 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596700181] [2019-10-22 11:27:17,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:27:17,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:17,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:27:17,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:27:17,514 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 9 states. [2019-10-22 11:27:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:17,787 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2019-10-22 11:27:17,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:27:17,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-10-22 11:27:17,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:17,788 INFO L225 Difference]: With dead ends: 125 [2019-10-22 11:27:17,788 INFO L226 Difference]: Without dead ends: 125 [2019-10-22 11:27:17,789 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:27:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-22 11:27:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 55. [2019-10-22 11:27:17,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 11:27:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-10-22 11:27:17,791 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 13 [2019-10-22 11:27:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:17,791 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2019-10-22 11:27:17,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:27:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2019-10-22 11:27:17,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:27:17,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:17,792 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:17,792 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:17,793 INFO L82 PathProgramCache]: Analyzing trace with hash 2046989940, now seen corresponding path program 1 times [2019-10-22 11:27:17,793 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:17,793 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775190551] [2019-10-22 11:27:17,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:17,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775190551] [2019-10-22 11:27:17,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:17,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:17,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960266021] [2019-10-22 11:27:17,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:17,846 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:17,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:17,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:17,846 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 6 states. [2019-10-22 11:27:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:17,887 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2019-10-22 11:27:17,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:17,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-10-22 11:27:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:17,888 INFO L225 Difference]: With dead ends: 55 [2019-10-22 11:27:17,888 INFO L226 Difference]: Without dead ends: 55 [2019-10-22 11:27:17,888 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:27:17,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-22 11:27:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-10-22 11:27:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 11:27:17,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2019-10-22 11:27:17,890 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 15 [2019-10-22 11:27:17,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:17,890 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2019-10-22 11:27:17,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:17,891 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2019-10-22 11:27:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:27:17,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:17,891 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:17,891 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:17,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:17,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2048342003, now seen corresponding path program 1 times [2019-10-22 11:27:17,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:17,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851573975] [2019-10-22 11:27:17,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:17,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:17,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851573975] [2019-10-22 11:27:17,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:17,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:17,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892803802] [2019-10-22 11:27:17,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:27:17,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:17,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:27:17,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:17,970 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 7 states. [2019-10-22 11:27:18,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:18,083 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2019-10-22 11:27:18,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:18,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-22 11:27:18,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:18,085 INFO L225 Difference]: With dead ends: 84 [2019-10-22 11:27:18,085 INFO L226 Difference]: Without dead ends: 84 [2019-10-22 11:27:18,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:27:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-10-22 11:27:18,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 53. [2019-10-22 11:27:18,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 11:27:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2019-10-22 11:27:18,088 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 15 [2019-10-22 11:27:18,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:18,088 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2019-10-22 11:27:18,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:27:18,088 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2019-10-22 11:27:18,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:27:18,088 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:18,088 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:18,089 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:18,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:18,089 INFO L82 PathProgramCache]: Analyzing trace with hash 2048342004, now seen corresponding path program 1 times [2019-10-22 11:27:18,089 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:18,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263863273] [2019-10-22 11:27:18,089 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,090 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:18,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:18,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263863273] [2019-10-22 11:27:18,197 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:18,197 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:27:18,197 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639337955] [2019-10-22 11:27:18,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:27:18,198 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:18,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:27:18,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:18,198 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 8 states. [2019-10-22 11:27:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:18,353 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2019-10-22 11:27:18,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:27:18,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-10-22 11:27:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:18,354 INFO L225 Difference]: With dead ends: 86 [2019-10-22 11:27:18,354 INFO L226 Difference]: Without dead ends: 86 [2019-10-22 11:27:18,355 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:27:18,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-22 11:27:18,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 51. [2019-10-22 11:27:18,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:27:18,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2019-10-22 11:27:18,357 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 15 [2019-10-22 11:27:18,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:18,357 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2019-10-22 11:27:18,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:27:18,358 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2019-10-22 11:27:18,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:27:18,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:18,358 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:18,359 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:18,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:18,359 INFO L82 PathProgramCache]: Analyzing trace with hash -927293064, now seen corresponding path program 1 times [2019-10-22 11:27:18,359 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:18,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125883886] [2019-10-22 11:27:18,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:18,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125883886] [2019-10-22 11:27:18,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:18,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:27:18,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038938868] [2019-10-22 11:27:18,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:27:18,414 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:18,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:27:18,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:18,414 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 7 states. [2019-10-22 11:27:18,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:18,464 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2019-10-22 11:27:18,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:18,464 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-10-22 11:27:18,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:18,465 INFO L225 Difference]: With dead ends: 51 [2019-10-22 11:27:18,465 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 11:27:18,465 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:18,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 11:27:18,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-22 11:27:18,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:27:18,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2019-10-22 11:27:18,467 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 16 [2019-10-22 11:27:18,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:18,467 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2019-10-22 11:27:18,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:27:18,467 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2019-10-22 11:27:18,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:27:18,468 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:18,468 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:18,468 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1235579935, now seen corresponding path program 1 times [2019-10-22 11:27:18,469 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:18,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735694116] [2019-10-22 11:27:18,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:18,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735694116] [2019-10-22 11:27:18,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:18,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:27:18,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161191552] [2019-10-22 11:27:18,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:27:18,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:18,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:27:18,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:18,516 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 7 states. [2019-10-22 11:27:18,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:18,559 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2019-10-22 11:27:18,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:18,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-10-22 11:27:18,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:18,560 INFO L225 Difference]: With dead ends: 51 [2019-10-22 11:27:18,560 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 11:27:18,561 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:18,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 11:27:18,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-22 11:27:18,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:27:18,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2019-10-22 11:27:18,563 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 20 [2019-10-22 11:27:18,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:18,563 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2019-10-22 11:27:18,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:27:18,563 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2019-10-22 11:27:18,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:27:18,563 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:18,564 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:18,564 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:18,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1235581409, now seen corresponding path program 1 times [2019-10-22 11:27:18,564 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:18,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840119803] [2019-10-22 11:27:18,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:18,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840119803] [2019-10-22 11:27:18,654 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:18,654 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 11:27:18,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775306555] [2019-10-22 11:27:18,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:27:18,655 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:18,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:27:18,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:27:18,655 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 10 states. [2019-10-22 11:27:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:18,799 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2019-10-22 11:27:18,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:27:18,799 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-10-22 11:27:18,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:18,800 INFO L225 Difference]: With dead ends: 53 [2019-10-22 11:27:18,800 INFO L226 Difference]: Without dead ends: 53 [2019-10-22 11:27:18,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:27:18,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-22 11:27:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2019-10-22 11:27:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-22 11:27:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2019-10-22 11:27:18,802 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 20 [2019-10-22 11:27:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:18,803 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2019-10-22 11:27:18,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:27:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2019-10-22 11:27:18,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:27:18,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:18,804 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:18,804 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:18,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1235581408, now seen corresponding path program 1 times [2019-10-22 11:27:18,804 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:18,804 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669193407] [2019-10-22 11:27:18,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:18,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:18,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669193407] [2019-10-22 11:27:18,905 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:18,905 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:27:18,905 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015247635] [2019-10-22 11:27:18,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:27:18,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:18,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:27:18,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:18,906 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 8 states. [2019-10-22 11:27:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:19,048 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2019-10-22 11:27:19,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:27:19,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-10-22 11:27:19,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:19,049 INFO L225 Difference]: With dead ends: 47 [2019-10-22 11:27:19,049 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:27:19,049 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:27:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:27:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-22 11:27:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 11:27:19,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2019-10-22 11:27:19,051 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 20 [2019-10-22 11:27:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:19,051 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2019-10-22 11:27:19,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:27:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2019-10-22 11:27:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:27:19,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:19,052 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:19,052 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:19,052 INFO L82 PathProgramCache]: Analyzing trace with hash 746116899, now seen corresponding path program 1 times [2019-10-22 11:27:19,052 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:19,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507527375] [2019-10-22 11:27:19,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:19,053 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:19,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:27:19,148 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507527375] [2019-10-22 11:27:19,148 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:19,148 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-22 11:27:19,148 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093068295] [2019-10-22 11:27:19,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 11:27:19,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:19,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 11:27:19,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:19,149 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 11 states. [2019-10-22 11:27:19,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:19,343 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2019-10-22 11:27:19,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:27:19,344 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2019-10-22 11:27:19,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:19,344 INFO L225 Difference]: With dead ends: 49 [2019-10-22 11:27:19,344 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 11:27:19,345 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:27:19,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 11:27:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2019-10-22 11:27:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 11:27:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2019-10-22 11:27:19,346 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 26 [2019-10-22 11:27:19,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:19,347 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2019-10-22 11:27:19,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 11:27:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2019-10-22 11:27:19,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:27:19,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:19,347 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:19,348 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION]=== [2019-10-22 11:27:19,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:19,348 INFO L82 PathProgramCache]: Analyzing trace with hash 746116900, now seen corresponding path program 1 times [2019-10-22 11:27:19,348 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:19,348 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553039000] [2019-10-22 11:27:19,348 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:19,348 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:19,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:19,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553039000] [2019-10-22 11:27:19,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813754191] [2019-10-22 11:27:19,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:19,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:27:19,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:19,514 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:19,537 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1452461766] [2019-10-22 11:27:19,542 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 27 [2019-10-22 11:27:19,582 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:27:19,583 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:27:19,869 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:19,870 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:27:19,874 INFO L168 Benchmark]: Toolchain (without parser) took 5358.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.2 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:19,875 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:19,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:19,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:19,876 INFO L168 Benchmark]: Boogie Preprocessor took 57.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:19,876 INFO L168 Benchmark]: RCFGBuilder took 405.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:19,877 INFO L168 Benchmark]: TraceAbstraction took 4144.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -52.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:19,879 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 693.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 405.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4144.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -52.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:21,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:21,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:21,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:21,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:21,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:21,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:21,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:21,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:21,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:21,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:21,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:21,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:21,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:21,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:21,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:21,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:21,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:21,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:21,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:21,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:21,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:21,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:21,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:21,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:21,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:21,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:21,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:21,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:21,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:21,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:21,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:21,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:21,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:21,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:21,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:21,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:21,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:21,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:21,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:21,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:21,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:27:21,986 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:21,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:21,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:21,987 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:21,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:21,987 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:21,988 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:21,988 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:21,988 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:21,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:27:21,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:27:21,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:21,989 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:21,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:27:21,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:21,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:21,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:21,990 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:27:21,990 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:27:21,990 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:27:21,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:21,990 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:27:21,990 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:27:21,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:21,991 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:27:21,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:21,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:21,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:21,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:21,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:21,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:21,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:21,992 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:27:21,992 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:27:21,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:21,992 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/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 -> 83c475b885cdccfa599beaea0eafb561d0387d6b [2019-10-22 11:27:22,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:22,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:22,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:22,031 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:22,031 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:22,032 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2019-10-22 11:27:22,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/7a7d15470/070fad1cef104383b4321a68e6f5c43e/FLAGd0fc09054 [2019-10-22 11:27:22,558 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:22,570 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2019-10-22 11:27:22,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/7a7d15470/070fad1cef104383b4321a68e6f5c43e/FLAGd0fc09054 [2019-10-22 11:27:22,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/data/7a7d15470/070fad1cef104383b4321a68e6f5c43e [2019-10-22 11:27:22,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:22,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:22,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:22,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:22,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:22,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:22" (1/1) ... [2019-10-22 11:27:22,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5d43ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:22, skipping insertion in model container [2019-10-22 11:27:22,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:22" (1/1) ... [2019-10-22 11:27:22,900 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:22,947 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:23,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:23,463 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:23,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:23,614 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:23,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23 WrapperNode [2019-10-22 11:27:23,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:23,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:23,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:23,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:23,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:23,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:23,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:23,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:23,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... [2019-10-22 11:27:23,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:23,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:23,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:23,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:23,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:27:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:27:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:27:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:27:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:27:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:27:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:27:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:24,228 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:24,228 INFO L284 CfgBuilder]: Removed 34 assume(true) statements. [2019-10-22 11:27:24,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:24 BoogieIcfgContainer [2019-10-22 11:27:24,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:24,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:24,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:24,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:24,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:22" (1/3) ... [2019-10-22 11:27:24,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ad5c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:24, skipping insertion in model container [2019-10-22 11:27:24,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:23" (2/3) ... [2019-10-22 11:27:24,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ad5c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:24, skipping insertion in model container [2019-10-22 11:27:24,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:24" (3/3) ... [2019-10-22 11:27:24,236 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-2.i [2019-10-22 11:27:24,245 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:24,256 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2019-10-22 11:27:24,266 INFO L249 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2019-10-22 11:27:24,287 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:24,287 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:27:24,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:24,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:24,288 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:24,288 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:24,288 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:24,288 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:24,304 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-10-22 11:27:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:27:24,311 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:24,312 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:27:24,314 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2019-10-22 11:27:24,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:24,319 INFO L82 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2019-10-22 11:27:24,328 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:24,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1537749178] [2019-10-22 11:27:24,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48c63c03-f8f5-41f0-a28f-f1b4693a8b1a/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:24,596 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:24,597 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort FloatRoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:27:24,601 INFO L168 Benchmark]: Toolchain (without parser) took 1717.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:24,602 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:24,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:24,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:24,604 INFO L168 Benchmark]: Boogie Preprocessor took 38.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:24,605 INFO L168 Benchmark]: RCFGBuilder took 522.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:24,605 INFO L168 Benchmark]: TraceAbstraction took 368.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:24,608 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 729.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 522.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 368.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort FloatRoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...