./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.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_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i -s /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/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 1a84b349ed554162d37455efc2adb7bf93e2048b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i -s /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/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 1a84b349ed554162d37455efc2adb7bf93e2048b ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:11,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:11,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:11,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:11,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:11,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:11,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:11,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:11,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:11,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:11,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:11,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:11,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:11,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:11,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:11,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:11,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:11,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:11,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:11,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:11,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:11,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:11,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:11,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:11,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:11,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:11,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:11,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:11,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:11,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:11,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:11,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:11,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:11,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:11,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:11,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:11,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:11,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:11,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:11,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:11,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:11,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:22:11,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:11,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:11,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:11,687 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:11,688 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:11,688 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:11,688 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:11,688 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:11,689 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:11,689 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:11,689 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:11,689 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:11,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:11,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:11,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:11,691 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:11,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:11,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:11,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:11,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:11,692 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:11,692 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:11,692 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:11,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:11,697 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:11,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:11,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:11,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:11,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:11,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:11,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:11,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:11,698 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:11,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:11,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:11,701 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_97b943ef-8121-4433-bfea-b22c22f3b39c/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 -> 1a84b349ed554162d37455efc2adb7bf93e2048b [2019-10-22 11:22:11,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:11,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:11,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:11,751 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:11,751 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:11,752 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2019-10-22 11:22:11,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/eb112922b/dbbf85d88bff4f3587c0644b546f85f4/FLAG4c5482ad1 [2019-10-22 11:22:12,289 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:12,290 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2019-10-22 11:22:12,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/eb112922b/dbbf85d88bff4f3587c0644b546f85f4/FLAG4c5482ad1 [2019-10-22 11:22:12,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/eb112922b/dbbf85d88bff4f3587c0644b546f85f4 [2019-10-22 11:22:12,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:12,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:12,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:12,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:12,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:12,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:12" (1/1) ... [2019-10-22 11:22:12,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1573b873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:12, skipping insertion in model container [2019-10-22 11:22:12,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:12" (1/1) ... [2019-10-22 11:22:12,632 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:12,665 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:13,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:13,036 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:13,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:13,124 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:13,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13 WrapperNode [2019-10-22 11:22:13,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:13,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:13,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:13,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:13,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:13,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:13,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:13,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:13,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... [2019-10-22 11:22:13,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:13,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:13,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:13,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:13,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:22:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:22:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:22:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:22:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:22:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:13,859 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:13,859 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-10-22 11:22:13,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:13 BoogieIcfgContainer [2019-10-22 11:22:13,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:13,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:13,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:13,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:13,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:12" (1/3) ... [2019-10-22 11:22:13,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccbb096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:13, skipping insertion in model container [2019-10-22 11:22:13,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:13" (2/3) ... [2019-10-22 11:22:13,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccbb096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:13, skipping insertion in model container [2019-10-22 11:22:13,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:13" (3/3) ... [2019-10-22 11:22:13,876 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all_reverse.i [2019-10-22 11:22:13,887 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:13,898 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 49 error locations. [2019-10-22 11:22:13,909 INFO L249 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2019-10-22 11:22:13,927 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:13,927 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:22:13,927 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:13,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:13,927 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:13,927 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:13,927 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:13,928 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2019-10-22 11:22:13,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:22:13,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:13,958 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:22:13,960 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:13,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:13,966 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2019-10-22 11:22:13,974 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:13,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034910476] [2019-10-22 11:22:13,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:13,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:13,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:14,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034910476] [2019-10-22 11:22:14,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:14,125 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:14,125 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516947257] [2019-10-22 11:22:14,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:14,131 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:14,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:14,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:14,151 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 3 states. [2019-10-22 11:22:14,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:14,380 INFO L93 Difference]: Finished difference Result 133 states and 140 transitions. [2019-10-22 11:22:14,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:14,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:22:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:14,395 INFO L225 Difference]: With dead ends: 133 [2019-10-22 11:22:14,395 INFO L226 Difference]: Without dead ends: 127 [2019-10-22 11:22:14,397 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-22 11:22:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 92. [2019-10-22 11:22:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-10-22 11:22:14,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2019-10-22 11:22:14,448 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 4 [2019-10-22 11:22:14,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:14,449 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2019-10-22 11:22:14,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:14,449 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2019-10-22 11:22:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:22:14,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:14,449 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:22:14,450 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:14,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:14,450 INFO L82 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2019-10-22 11:22:14,451 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:14,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360965638] [2019-10-22 11:22:14,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:14,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:14,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:14,522 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360965638] [2019-10-22 11:22:14,523 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:14,523 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:14,523 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655565640] [2019-10-22 11:22:14,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:14,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:14,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:14,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:14,530 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand 3 states. [2019-10-22 11:22:14,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:14,694 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2019-10-22 11:22:14,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:14,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:22:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:14,696 INFO L225 Difference]: With dead ends: 86 [2019-10-22 11:22:14,696 INFO L226 Difference]: Without dead ends: 86 [2019-10-22 11:22:14,697 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-22 11:22:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-10-22 11:22:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-10-22 11:22:14,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2019-10-22 11:22:14,703 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 4 [2019-10-22 11:22:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:14,704 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2019-10-22 11:22:14,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:14,704 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2019-10-22 11:22:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:22:14,704 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:14,704 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:14,705 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:14,705 INFO L82 PathProgramCache]: Analyzing trace with hash 613332465, now seen corresponding path program 1 times [2019-10-22 11:22:14,705 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:14,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019568655] [2019-10-22 11:22:14,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:14,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:14,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:14,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:14,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019568655] [2019-10-22 11:22:14,786 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:14,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:14,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250514164] [2019-10-22 11:22:14,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:14,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:14,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:14,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:14,787 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand 3 states. [2019-10-22 11:22:14,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:14,798 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2019-10-22 11:22:14,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:14,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-22 11:22:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:14,799 INFO L225 Difference]: With dead ends: 101 [2019-10-22 11:22:14,799 INFO L226 Difference]: Without dead ends: 101 [2019-10-22 11:22:14,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-10-22 11:22:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87. [2019-10-22 11:22:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:22:14,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2019-10-22 11:22:14,805 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 10 [2019-10-22 11:22:14,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:14,805 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2019-10-22 11:22:14,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:14,805 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2019-10-22 11:22:14,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:22:14,806 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:14,806 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:14,806 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:14,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:14,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1103137848, now seen corresponding path program 1 times [2019-10-22 11:22:14,807 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:14,807 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860836373] [2019-10-22 11:22:14,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:14,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:14,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:14,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860836373] [2019-10-22 11:22:14,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:14,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:14,869 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483121441] [2019-10-22 11:22:14,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:14,869 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:14,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:14,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:14,870 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 5 states. [2019-10-22 11:22:15,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:15,102 INFO L93 Difference]: Finished difference Result 127 states and 132 transitions. [2019-10-22 11:22:15,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:15,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-22 11:22:15,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:15,103 INFO L225 Difference]: With dead ends: 127 [2019-10-22 11:22:15,103 INFO L226 Difference]: Without dead ends: 127 [2019-10-22 11:22:15,104 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:15,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-22 11:22:15,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 86. [2019-10-22 11:22:15,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-10-22 11:22:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2019-10-22 11:22:15,108 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 16 [2019-10-22 11:22:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:15,108 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2019-10-22 11:22:15,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2019-10-22 11:22:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:22:15,109 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:15,109 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:15,110 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:15,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:15,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1103137849, now seen corresponding path program 1 times [2019-10-22 11:22:15,110 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:15,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202934951] [2019-10-22 11:22:15,110 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:15,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:15,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:15,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202934951] [2019-10-22 11:22:15,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:15,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:15,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745244168] [2019-10-22 11:22:15,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:15,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:15,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:15,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:15,191 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand 5 states. [2019-10-22 11:22:15,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:15,356 INFO L93 Difference]: Finished difference Result 91 states and 94 transitions. [2019-10-22 11:22:15,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:15,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-22 11:22:15,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:15,357 INFO L225 Difference]: With dead ends: 91 [2019-10-22 11:22:15,357 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 11:22:15,358 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 11:22:15,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2019-10-22 11:22:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-22 11:22:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2019-10-22 11:22:15,363 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 16 [2019-10-22 11:22:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:15,363 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2019-10-22 11:22:15,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:15,363 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2019-10-22 11:22:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:22:15,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:15,364 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:15,364 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:15,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:15,365 INFO L82 PathProgramCache]: Analyzing trace with hash -741449383, now seen corresponding path program 1 times [2019-10-22 11:22:15,365 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:15,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087482211] [2019-10-22 11:22:15,365 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:15,366 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:15,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:15,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087482211] [2019-10-22 11:22:15,483 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:15,483 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:22:15,483 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311591432] [2019-10-22 11:22:15,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:22:15,484 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:15,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:22:15,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:15,484 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand 7 states. [2019-10-22 11:22:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:15,792 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2019-10-22 11:22:15,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:15,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-10-22 11:22:15,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:15,794 INFO L225 Difference]: With dead ends: 131 [2019-10-22 11:22:15,794 INFO L226 Difference]: Without dead ends: 131 [2019-10-22 11:22:15,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:15,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-22 11:22:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 94. [2019-10-22 11:22:15,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-22 11:22:15,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2019-10-22 11:22:15,806 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 18 [2019-10-22 11:22:15,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:15,806 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2019-10-22 11:22:15,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:22:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2019-10-22 11:22:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:22:15,807 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:15,807 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:15,808 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:15,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:15,808 INFO L82 PathProgramCache]: Analyzing trace with hash -741449382, now seen corresponding path program 1 times [2019-10-22 11:22:15,808 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:15,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738169756] [2019-10-22 11:22:15,812 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:15,812 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:15,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:15,954 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738169756] [2019-10-22 11:22:15,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:15,954 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:15,954 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676418424] [2019-10-22 11:22:15,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:15,955 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:15,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:15,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:15,955 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 5 states. [2019-10-22 11:22:16,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:16,146 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2019-10-22 11:22:16,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:16,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-10-22 11:22:16,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:16,148 INFO L225 Difference]: With dead ends: 95 [2019-10-22 11:22:16,148 INFO L226 Difference]: Without dead ends: 95 [2019-10-22 11:22:16,148 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-22 11:22:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2019-10-22 11:22:16,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-22 11:22:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 98 transitions. [2019-10-22 11:22:16,152 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 98 transitions. Word has length 18 [2019-10-22 11:22:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:16,153 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 98 transitions. [2019-10-22 11:22:16,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 98 transitions. [2019-10-22 11:22:16,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:22:16,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:16,154 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 11:22:16,154 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:16,155 INFO L82 PathProgramCache]: Analyzing trace with hash 431868768, now seen corresponding path program 1 times [2019-10-22 11:22:16,155 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:16,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956083311] [2019-10-22 11:22:16,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:16,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:16,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:16,214 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956083311] [2019-10-22 11:22:16,215 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:16,215 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:22:16,215 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703733276] [2019-10-22 11:22:16,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:16,215 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:16,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:16,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:16,216 INFO L87 Difference]: Start difference. First operand 94 states and 98 transitions. Second operand 6 states. [2019-10-22 11:22:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:16,328 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2019-10-22 11:22:16,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:16,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-22 11:22:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:16,330 INFO L225 Difference]: With dead ends: 95 [2019-10-22 11:22:16,330 INFO L226 Difference]: Without dead ends: 95 [2019-10-22 11:22:16,330 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:22:16,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-22 11:22:16,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2019-10-22 11:22:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-22 11:22:16,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 97 transitions. [2019-10-22 11:22:16,335 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 97 transitions. Word has length 20 [2019-10-22 11:22:16,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:16,335 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 97 transitions. [2019-10-22 11:22:16,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 97 transitions. [2019-10-22 11:22:16,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:22:16,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:16,336 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] [2019-10-22 11:22:16,336 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION]=== [2019-10-22 11:22:16,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:16,337 INFO L82 PathProgramCache]: Analyzing trace with hash 498265101, now seen corresponding path program 1 times [2019-10-22 11:22:16,337 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:16,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680055078] [2019-10-22 11:22:16,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:16,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:16,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:16,389 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 11:22:16,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680055078] [2019-10-22 11:22:16,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150732138] [2019-10-22 11:22:16,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:16,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:16,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:16,472 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 11:22:16,472 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:16,517 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:16,518 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 16 [2019-10-22 11:22:16,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:16,523 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:16,529 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:16,530 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:22:16,530 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:3 [2019-10-22 11:22:16,532 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 11:22:16,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1015300835] [2019-10-22 11:22:16,541 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 22 [2019-10-22 11:22:16,576 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:22:16,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:22:16,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:16,887 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:22:16,892 INFO L168 Benchmark]: Toolchain (without parser) took 4273.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.1 MB in the beginning and 1.0 GB in the end (delta: -92.2 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:16,893 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:16,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:16,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:16,894 INFO L168 Benchmark]: Boogie Preprocessor took 44.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:16,895 INFO L168 Benchmark]: RCFGBuilder took 647.72 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:16,896 INFO L168 Benchmark]: TraceAbstraction took 3024.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:16,899 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 505.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 647.72 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3024.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:19,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:19,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:19,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:19,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:19,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:19,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:19,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:19,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:19,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:19,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:19,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:19,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:19,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:19,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:19,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:19,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:19,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:19,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:19,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:19,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:19,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:19,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:19,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:19,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:19,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:19,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:19,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:19,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:19,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:19,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:19,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:19,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:19,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:19,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:19,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:19,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:19,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:19,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:19,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:19,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:19,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:19,184 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:19,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:19,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:19,196 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:19,196 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:19,196 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:19,196 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:19,197 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:19,197 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:19,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:19,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:19,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:19,198 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:19,198 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:19,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:19,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:19,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:19,199 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:19,199 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:19,199 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:19,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:19,200 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:19,200 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:19,200 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:19,200 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:19,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:19,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:19,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:19,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:19,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:19,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:19,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:19,203 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:19,203 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:19,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:19,203 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_97b943ef-8121-4433-bfea-b22c22f3b39c/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 -> 1a84b349ed554162d37455efc2adb7bf93e2048b [2019-10-22 11:22:19,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:19,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:19,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:19,272 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:19,272 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:19,273 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2019-10-22 11:22:19,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/76a0ef2a2/cd6f9a704f2846639f1ac82485703ad5/FLAG55c65d48f [2019-10-22 11:22:19,770 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:19,770 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2019-10-22 11:22:19,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/76a0ef2a2/cd6f9a704f2846639f1ac82485703ad5/FLAG55c65d48f [2019-10-22 11:22:20,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/data/76a0ef2a2/cd6f9a704f2846639f1ac82485703ad5 [2019-10-22 11:22:20,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:20,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:20,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:20,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:20,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:20,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15cd6168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20, skipping insertion in model container [2019-10-22 11:22:20,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:20,251 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:20,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:20,668 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:20,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:20,758 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:20,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20 WrapperNode [2019-10-22 11:22:20,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:20,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:20,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:20,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:20,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:20,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:20,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:20,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:20,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... [2019-10-22 11:22:20,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:20,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:20,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:20,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:20,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:22:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:22:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:22:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:22:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:22:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:21,529 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:21,529 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-10-22 11:22:21,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:21 BoogieIcfgContainer [2019-10-22 11:22:21,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:21,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:21,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:21,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:21,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:20" (1/3) ... [2019-10-22 11:22:21,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328fcb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:21, skipping insertion in model container [2019-10-22 11:22:21,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:20" (2/3) ... [2019-10-22 11:22:21,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328fcb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:21, skipping insertion in model container [2019-10-22 11:22:21,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:21" (3/3) ... [2019-10-22 11:22:21,538 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all_reverse.i [2019-10-22 11:22:21,547 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:21,554 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 49 error locations. [2019-10-22 11:22:21,565 INFO L249 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2019-10-22 11:22:21,583 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:21,583 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:22:21,584 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:21,584 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:21,584 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:21,584 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:21,584 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:21,585 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:21,600 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2019-10-22 11:22:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:22:21,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:21,608 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:22:21,610 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION]=== [2019-10-22 11:22:21,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:21,615 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2019-10-22 11:22:21,624 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:21,625 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [597537584] [2019-10-22 11:22:21,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97b943ef-8121-4433-bfea-b22c22f3b39c/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:21,893 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:21,893 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort FloatRoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:22:21,898 INFO L168 Benchmark]: Toolchain (without parser) took 1713.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -75.1 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:21,898 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:21,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:21,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:21,903 INFO L168 Benchmark]: Boogie Preprocessor took 71.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:21,903 INFO L168 Benchmark]: RCFGBuilder took 649.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:21,907 INFO L168 Benchmark]: TraceAbstraction took 364.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:21,910 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 574.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 649.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 364.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 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...