./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_search-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_search-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4b81a46ec2331214cca2fd1ae780369dc773284 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_search-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4b81a46ec2331214cca2fd1ae780369dc773284 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:12,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:12,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:13,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:13,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:13,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:13,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:13,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:13,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:13,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:13,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:13,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:13,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:13,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:13,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:13,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:13,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:13,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:13,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:13,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:13,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:13,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:13,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:13,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:13,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:13,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:13,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:13,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:13,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:13,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:13,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:13,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:13,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:13,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:13,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:13,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:13,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:13,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:13,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:13,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:13,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:13,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-10-22 08:58:13,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:13,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:13,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:13,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:13,080 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:13,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:13,080 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:13,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:13,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:13,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:13,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:13,081 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:13,081 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:13,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:13,081 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:13,081 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:13,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:13,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:13,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:13,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:13,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:13,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:13,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:13,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:13,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:13,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> d4b81a46ec2331214cca2fd1ae780369dc773284 [2019-10-22 08:58:13,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:13,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:13,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:13,126 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:13,127 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:13,128 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/../../sv-benchmarks/c/list-properties/list_search-2.i [2019-10-22 08:58:13,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/a9b56e301/74c583c633e24040a05263098bce710b/FLAGa60b16ad0 [2019-10-22 08:58:13,692 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:13,693 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/sv-benchmarks/c/list-properties/list_search-2.i [2019-10-22 08:58:13,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/a9b56e301/74c583c633e24040a05263098bce710b/FLAGa60b16ad0 [2019-10-22 08:58:13,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/a9b56e301/74c583c633e24040a05263098bce710b [2019-10-22 08:58:13,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:13,944 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:13,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:13,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:13,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:13,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:13" (1/1) ... [2019-10-22 08:58:13,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163d451e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:13, skipping insertion in model container [2019-10-22 08:58:13,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:13" (1/1) ... [2019-10-22 08:58:13,959 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:14,007 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:14,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:14,474 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:14,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:14,623 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:14,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14 WrapperNode [2019-10-22 08:58:14,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:14,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:14,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:14,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:14,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:14,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:14,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:14,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:14,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/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 08:58:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-22 08:58:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:58:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:58:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:58:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-10-22 08:58:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_list [2019-10-22 08:58:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-10-22 08:58:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:58:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-22 08:58:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-10-22 08:58:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-10-22 08:58:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-10-22 08:58:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-10-22 08:58:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-10-22 08:58:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-10-22 08:58:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-10-22 08:58:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-10-22 08:58:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-10-22 08:58:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-10-22 08:58:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-10-22 08:58:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-10-22 08:58:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-10-22 08:58:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-10-22 08:58:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-10-22 08:58:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-10-22 08:58:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-10-22 08:58:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-10-22 08:58:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-10-22 08:58:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-10-22 08:58:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-10-22 08:58:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-10-22 08:58:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-10-22 08:58:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-10-22 08:58:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-10-22 08:58:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-10-22 08:58:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-10-22 08:58:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-10-22 08:58:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-22 08:58:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-10-22 08:58:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-10-22 08:58:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-10-22 08:58:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-10-22 08:58:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-10-22 08:58:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-10-22 08:58:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-10-22 08:58:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-10-22 08:58:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-10-22 08:58:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-22 08:58:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-22 08:58:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-10-22 08:58:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-10-22 08:58:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-10-22 08:58:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-22 08:58:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-22 08:58:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-10-22 08:58:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-10-22 08:58:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-10-22 08:58:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-10-22 08:58:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-22 08:58:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-10-22 08:58:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-10-22 08:58:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-10-22 08:58:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-10-22 08:58:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-22 08:58:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-10-22 08:58:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-10-22 08:58:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-10-22 08:58:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-10-22 08:58:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-10-22 08:58:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-10-22 08:58:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-10-22 08:58:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-10-22 08:58:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-10-22 08:58:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-10-22 08:58:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-10-22 08:58:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-10-22 08:58:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-10-22 08:58:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-10-22 08:58:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-10-22 08:58:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-10-22 08:58:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-10-22 08:58:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-22 08:58:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-10-22 08:58:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-10-22 08:58:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-10-22 08:58:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-10-22 08:58:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-10-22 08:58:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-10-22 08:58:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-10-22 08:58:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-10-22 08:58:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-10-22 08:58:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-10-22 08:58:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-10-22 08:58:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-10-22 08:58:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-10-22 08:58:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-10-22 08:58:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-10-22 08:58:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-10-22 08:58:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-10-22 08:58:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-10-22 08:58:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-10-22 08:58:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-10-22 08:58:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:58:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:58:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:58:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure delete_list [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-10-22 08:58:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:15,470 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:15,471 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:15,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:15 BoogieIcfgContainer [2019-10-22 08:58:15,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:15,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:15,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:15,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:15,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:13" (1/3) ... [2019-10-22 08:58:15,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7208287e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:15, skipping insertion in model container [2019-10-22 08:58:15,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (2/3) ... [2019-10-22 08:58:15,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7208287e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:15, skipping insertion in model container [2019-10-22 08:58:15,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:15" (3/3) ... [2019-10-22 08:58:15,480 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-2.i [2019-10-22 08:58:15,490 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:15,498 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2019-10-22 08:58:15,509 INFO L249 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2019-10-22 08:58:15,532 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:15,532 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:15,532 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:15,532 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:15,532 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:15,532 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:15,532 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:15,532 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2019-10-22 08:58:15,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:15,563 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:15,564 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:15,566 INFO L410 AbstractCegarLoop]: === Iteration 1 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:15,573 INFO L82 PathProgramCache]: Analyzing trace with hash -2055481374, now seen corresponding path program 1 times [2019-10-22 08:58:15,583 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:15,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702513483] [2019-10-22 08:58:15,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:15,795 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 08:58:15,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702513483] [2019-10-22 08:58:15,797 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:15,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:15,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148863714] [2019-10-22 08:58:15,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:15,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:15,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:15,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:15,816 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2019-10-22 08:58:16,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:16,240 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2019-10-22 08:58:16,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:16,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:58:16,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:16,251 INFO L225 Difference]: With dead ends: 114 [2019-10-22 08:58:16,251 INFO L226 Difference]: Without dead ends: 110 [2019-10-22 08:58:16,253 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-22 08:58:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2019-10-22 08:58:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-10-22 08:58:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2019-10-22 08:58:16,292 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 10 [2019-10-22 08:58:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:16,292 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2019-10-22 08:58:16,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2019-10-22 08:58:16,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:16,293 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:16,293 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:16,293 INFO L410 AbstractCegarLoop]: === Iteration 2 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:16,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:16,294 INFO L82 PathProgramCache]: Analyzing trace with hash -2055481373, now seen corresponding path program 1 times [2019-10-22 08:58:16,294 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:16,294 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033241410] [2019-10-22 08:58:16,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:16,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:16,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,363 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 08:58:16,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033241410] [2019-10-22 08:58:16,364 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:16,364 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:16,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72515424] [2019-10-22 08:58:16,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:16,366 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:16,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:16,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:16,366 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand 4 states. [2019-10-22 08:58:16,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:16,598 INFO L93 Difference]: Finished difference Result 106 states and 115 transitions. [2019-10-22 08:58:16,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:16,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:58:16,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:16,600 INFO L225 Difference]: With dead ends: 106 [2019-10-22 08:58:16,601 INFO L226 Difference]: Without dead ends: 106 [2019-10-22 08:58:16,601 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:16,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-22 08:58:16,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 93. [2019-10-22 08:58:16,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-10-22 08:58:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2019-10-22 08:58:16,611 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 10 [2019-10-22 08:58:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:16,611 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2019-10-22 08:58:16,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2019-10-22 08:58:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-22 08:58:16,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:16,613 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:16,614 INFO L410 AbstractCegarLoop]: === Iteration 3 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:16,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:16,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1904766846, now seen corresponding path program 1 times [2019-10-22 08:58:16,614 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:16,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888523402] [2019-10-22 08:58:16,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:16,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:16,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-22 08:58:16,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888523402] [2019-10-22 08:58:16,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:16,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:16,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126721670] [2019-10-22 08:58:16,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:16,877 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:16,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:16,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:16,877 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand 7 states. [2019-10-22 08:58:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:17,549 INFO L93 Difference]: Finished difference Result 124 states and 138 transitions. [2019-10-22 08:58:17,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:58:17,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2019-10-22 08:58:17,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:17,554 INFO L225 Difference]: With dead ends: 124 [2019-10-22 08:58:17,554 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 08:58:17,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:17,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 08:58:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 95. [2019-10-22 08:58:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-10-22 08:58:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2019-10-22 08:58:17,573 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 44 [2019-10-22 08:58:17,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:17,574 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2019-10-22 08:58:17,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2019-10-22 08:58:17,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-22 08:58:17,575 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:17,575 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:17,576 INFO L410 AbstractCegarLoop]: === Iteration 4 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:17,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:17,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1904766847, now seen corresponding path program 1 times [2019-10-22 08:58:17,576 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:17,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522238655] [2019-10-22 08:58:17,577 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:17,577 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:17,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-22 08:58:17,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522238655] [2019-10-22 08:58:17,807 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:17,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:17,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435259992] [2019-10-22 08:58:17,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:17,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:17,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:17,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:17,809 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand 7 states. [2019-10-22 08:58:18,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:18,393 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2019-10-22 08:58:18,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:58:18,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2019-10-22 08:58:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:18,395 INFO L225 Difference]: With dead ends: 144 [2019-10-22 08:58:18,395 INFO L226 Difference]: Without dead ends: 144 [2019-10-22 08:58:18,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-22 08:58:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 106. [2019-10-22 08:58:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-22 08:58:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 125 transitions. [2019-10-22 08:58:18,403 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 125 transitions. Word has length 44 [2019-10-22 08:58:18,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:18,404 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 125 transitions. [2019-10-22 08:58:18,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:18,404 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 125 transitions. [2019-10-22 08:58:18,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 08:58:18,405 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:18,405 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:18,405 INFO L410 AbstractCegarLoop]: === Iteration 5 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:18,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:18,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1823363339, now seen corresponding path program 1 times [2019-10-22 08:58:18,406 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:18,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764857559] [2019-10-22 08:58:18,406 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,406 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,513 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-22 08:58:18,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764857559] [2019-10-22 08:58:18,513 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:18,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:18,514 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345898123] [2019-10-22 08:58:18,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:18,514 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:18,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:18,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:18,515 INFO L87 Difference]: Start difference. First operand 106 states and 125 transitions. Second operand 7 states. [2019-10-22 08:58:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:18,838 INFO L93 Difference]: Finished difference Result 129 states and 138 transitions. [2019-10-22 08:58:18,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:18,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2019-10-22 08:58:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:18,839 INFO L225 Difference]: With dead ends: 129 [2019-10-22 08:58:18,839 INFO L226 Difference]: Without dead ends: 129 [2019-10-22 08:58:18,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:18,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-22 08:58:18,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 108. [2019-10-22 08:58:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-22 08:58:18,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2019-10-22 08:58:18,847 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 48 [2019-10-22 08:58:18,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:18,848 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2019-10-22 08:58:18,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2019-10-22 08:58:18,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 08:58:18,849 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:18,849 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:18,849 INFO L410 AbstractCegarLoop]: === Iteration 6 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:18,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:18,849 INFO L82 PathProgramCache]: Analyzing trace with hash -198762994, now seen corresponding path program 1 times [2019-10-22 08:58:18,850 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:18,850 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127782864] [2019-10-22 08:58:18,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-22 08:58:18,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127782864] [2019-10-22 08:58:18,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972086343] [2019-10-22 08:58:18,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/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 08:58:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-22 08:58:19,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-22 08:58:19,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:19,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2019-10-22 08:58:19,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18622578] [2019-10-22 08:58:19,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:19,161 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:19,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:19,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:19,161 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 5 states. [2019-10-22 08:58:19,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:19,252 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2019-10-22 08:58:19,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:19,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-10-22 08:58:19,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:19,253 INFO L225 Difference]: With dead ends: 118 [2019-10-22 08:58:19,253 INFO L226 Difference]: Without dead ends: 118 [2019-10-22 08:58:19,254 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-22 08:58:19,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2019-10-22 08:58:19,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-22 08:58:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2019-10-22 08:58:19,257 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 47 [2019-10-22 08:58:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:19,258 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2019-10-22 08:58:19,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2019-10-22 08:58:19,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 08:58:19,258 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:19,258 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,459 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:19,459 INFO L410 AbstractCegarLoop]: === Iteration 7 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:19,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,459 INFO L82 PathProgramCache]: Analyzing trace with hash 72082182, now seen corresponding path program 1 times [2019-10-22 08:58:19,460 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,460 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814578817] [2019-10-22 08:58:19,460 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,460 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 08:58:19,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814578817] [2019-10-22 08:58:19,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387122725] [2019-10-22 08:58:19,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 36 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,257 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:58:20,257 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:20,265 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:20,266 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:20,266 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-10-22 08:58:20,351 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:20,352 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 52 [2019-10-22 08:58:20,353 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:20,370 INFO L567 ElimStorePlain]: treesize reduction 32, result has 38.5 percent of original size [2019-10-22 08:58:20,371 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:20,371 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:20 [2019-10-22 08:58:20,431 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-10-22 08:58:20,431 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:20,435 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:20,436 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:20,436 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2019-10-22 08:58:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 08:58:20,448 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:20,448 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 19 [2019-10-22 08:58:20,449 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293049784] [2019-10-22 08:58:20,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-22 08:58:20,449 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:20,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-22 08:58:20,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2019-10-22 08:58:20,450 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand 20 states. [2019-10-22 08:58:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:21,632 INFO L93 Difference]: Finished difference Result 135 states and 148 transitions. [2019-10-22 08:58:21,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-22 08:58:21,633 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 47 [2019-10-22 08:58:21,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:21,634 INFO L225 Difference]: With dead ends: 135 [2019-10-22 08:58:21,634 INFO L226 Difference]: Without dead ends: 135 [2019-10-22 08:58:21,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=890, Unknown=0, NotChecked=0, Total=1056 [2019-10-22 08:58:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-22 08:58:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 114. [2019-10-22 08:58:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-22 08:58:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2019-10-22 08:58:21,646 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 47 [2019-10-22 08:58:21,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:21,647 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2019-10-22 08:58:21,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-22 08:58:21,647 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2019-10-22 08:58:21,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 08:58:21,648 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:21,648 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:21,852 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:21,853 INFO L410 AbstractCegarLoop]: === Iteration 8 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:21,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:21,853 INFO L82 PathProgramCache]: Analyzing trace with hash 72082183, now seen corresponding path program 1 times [2019-10-22 08:58:21,853 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:21,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880579033] [2019-10-22 08:58:21,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:21,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,405 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 08:58:22,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880579033] [2019-10-22 08:58:22,406 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887741374] [2019-10-22 08:58:22,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 50 conjunts are in the unsatisfiable core [2019-10-22 08:58:22,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:22,614 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-22 08:58:22,614 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:22,620 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:22,620 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:22,620 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 08:58:22,766 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:58:22,766 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:22,775 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:22,778 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:58:22,779 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:22,786 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:22,786 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:22,786 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2019-10-22 08:58:22,869 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:22,870 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 52 [2019-10-22 08:58:22,870 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:22,895 INFO L567 ElimStorePlain]: treesize reduction 32, result has 54.3 percent of original size [2019-10-22 08:58:22,895 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:22,895 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:38 [2019-10-22 08:58:22,991 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-10-22 08:58:22,992 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:23,003 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:23,006 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-10-22 08:58:23,007 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:23,015 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:23,016 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:23,017 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:17 [2019-10-22 08:58:23,108 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:23,108 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:23,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 21 [2019-10-22 08:58:23,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533636536] [2019-10-22 08:58:23,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-22 08:58:23,109 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:23,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-22 08:58:23,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2019-10-22 08:58:23,110 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand 22 states. [2019-10-22 08:58:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:24,770 INFO L93 Difference]: Finished difference Result 147 states and 159 transitions. [2019-10-22 08:58:24,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-22 08:58:24,771 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 47 [2019-10-22 08:58:24,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:24,772 INFO L225 Difference]: With dead ends: 147 [2019-10-22 08:58:24,772 INFO L226 Difference]: Without dead ends: 147 [2019-10-22 08:58:24,773 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=202, Invalid=1130, Unknown=0, NotChecked=0, Total=1332 [2019-10-22 08:58:24,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-10-22 08:58:24,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2019-10-22 08:58:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-22 08:58:24,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-10-22 08:58:24,792 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 47 [2019-10-22 08:58:24,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:24,792 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-10-22 08:58:24,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-22 08:58:24,792 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-10-22 08:58:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 08:58:24,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:24,793 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:24,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:24,994 INFO L410 AbstractCegarLoop]: === Iteration 9 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:24,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:24,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1755324029, now seen corresponding path program 1 times [2019-10-22 08:58:24,995 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:24,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471411105] [2019-10-22 08:58:24,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:24,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:24,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-22 08:58:25,089 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471411105] [2019-10-22 08:58:25,089 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:25,089 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:25,089 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381547964] [2019-10-22 08:58:25,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:25,090 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:25,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:25,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:25,090 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 7 states. [2019-10-22 08:58:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:25,427 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2019-10-22 08:58:25,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:25,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-22 08:58:25,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:25,428 INFO L225 Difference]: With dead ends: 131 [2019-10-22 08:58:25,428 INFO L226 Difference]: Without dead ends: 131 [2019-10-22 08:58:25,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:25,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-22 08:58:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 119. [2019-10-22 08:58:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-22 08:58:25,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-10-22 08:58:25,434 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 51 [2019-10-22 08:58:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:25,435 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-10-22 08:58:25,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-10-22 08:58:25,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 08:58:25,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:25,436 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:25,436 INFO L410 AbstractCegarLoop]: === Iteration 10 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:25,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:25,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1755324030, now seen corresponding path program 1 times [2019-10-22 08:58:25,437 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:25,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706010027] [2019-10-22 08:58:25,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-22 08:58:25,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706010027] [2019-10-22 08:58:25,596 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:25,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:25,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101615346] [2019-10-22 08:58:25,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:25,597 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:25,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:25,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:25,597 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 7 states. [2019-10-22 08:58:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:25,983 INFO L93 Difference]: Finished difference Result 141 states and 154 transitions. [2019-10-22 08:58:25,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:25,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-22 08:58:25,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:25,984 INFO L225 Difference]: With dead ends: 141 [2019-10-22 08:58:25,985 INFO L226 Difference]: Without dead ends: 141 [2019-10-22 08:58:25,985 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-10-22 08:58:25,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 122. [2019-10-22 08:58:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 08:58:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2019-10-22 08:58:25,990 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 51 [2019-10-22 08:58:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:25,990 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2019-10-22 08:58:25,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:25,991 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2019-10-22 08:58:25,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 08:58:25,992 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:25,992 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:25,992 INFO L410 AbstractCegarLoop]: === Iteration 11 === [insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr2REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr5REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr8REQUIRES_VIOLATION, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr9REQUIRES_VIOLATION, delete_listErr0REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:25,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:25,993 INFO L82 PathProgramCache]: Analyzing trace with hash -83321466, now seen corresponding path program 2 times [2019-10-22 08:58:25,993 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:25,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903894025] [2019-10-22 08:58:25,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:25,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:26,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903894025] [2019-10-22 08:58:26,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69203421] [2019-10-22 08:58:26,934 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,062 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 08:58:27,062 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:27,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 72 conjunts are in the unsatisfiable core [2019-10-22 08:58:27,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:27,178 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2019-10-22 08:58:27,179 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:27,183 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2019-10-22 08:58:27,183 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:27,215 INFO L567 ElimStorePlain]: treesize reduction 12, result has 82.6 percent of original size [2019-10-22 08:58:27,215 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-22 08:58:27,215 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:77, output treesize:57 [2019-10-22 08:58:27,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:27,301 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:27,502 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,503 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_old(#valid)_AFTER_CALL_19| input size 31 context size 31 output size 31 at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:349) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) 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.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 08:58:27,507 INFO L168 Benchmark]: Toolchain (without parser) took 13563.71 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 418.4 MB). Free memory was 940.5 MB in the beginning and 1.2 GB in the end (delta: -255.3 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:27,507 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:27,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:27,508 INFO L168 Benchmark]: Boogie Preprocessor took 78.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:27,508 INFO L168 Benchmark]: RCFGBuilder took 768.30 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: 88.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:27,509 INFO L168 Benchmark]: TraceAbstraction took 12033.08 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 276.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -193.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:27,511 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 680.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 768.30 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: 88.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12033.08 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 276.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -193.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_old(#valid)_AFTER_CALL_19| input size 31 context size 31 output size 31 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_old(#valid)_AFTER_CALL_19| input size 31 context size 31 output size 31: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:349) 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 08:58:29,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:29,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:29,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:29,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:29,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:29,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:29,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:29,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:29,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:29,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:29,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:29,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:29,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:29,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:29,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:29,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:29,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:29,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:29,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:29,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:29,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:29,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:29,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:29,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:29,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:29,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:29,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:29,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:29,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:29,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:29,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:29,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:29,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:29,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:29,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:29,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:29,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:29,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:29,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:29,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:29,754 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-10-22 08:58:29,766 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:29,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:29,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:29,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:29,768 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:29,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:29,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:29,768 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:29,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:29,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:29,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:29,769 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:29,769 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:29,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:29,769 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:58:29,769 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:58:29,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:29,770 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:29,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:29,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:29,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:29,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:29,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:29,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:29,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:29,772 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:58:29,772 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:58:29,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:58:29,772 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_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> d4b81a46ec2331214cca2fd1ae780369dc773284 [2019-10-22 08:58:29,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:29,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:29,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:29,824 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:29,827 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:29,828 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/../../sv-benchmarks/c/list-properties/list_search-2.i [2019-10-22 08:58:29,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/59f9c56a1/6e7f611e0d4c45a89c2a3c19f01b9fda/FLAGea97be7c2 [2019-10-22 08:58:30,364 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:30,365 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/sv-benchmarks/c/list-properties/list_search-2.i [2019-10-22 08:58:30,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/59f9c56a1/6e7f611e0d4c45a89c2a3c19f01b9fda/FLAGea97be7c2 [2019-10-22 08:58:30,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/data/59f9c56a1/6e7f611e0d4c45a89c2a3c19f01b9fda [2019-10-22 08:58:30,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:30,650 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:30,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:30,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:30,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:30,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:30" (1/1) ... [2019-10-22 08:58:30,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a0a761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:30, skipping insertion in model container [2019-10-22 08:58:30,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:30" (1/1) ... [2019-10-22 08:58:30,666 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:30,715 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:31,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:31,255 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:31,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:31,413 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:31,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31 WrapperNode [2019-10-22 08:58:31,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:31,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:31,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:31,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:31,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:31,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:31,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:31,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:31,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/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 08:58:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-22 08:58:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:58:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:58:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:58:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-10-22 08:58:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_list [2019-10-22 08:58:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-10-22 08:58:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:58:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-22 08:58:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-10-22 08:58:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-10-22 08:58:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-10-22 08:58:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-10-22 08:58:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-10-22 08:58:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-10-22 08:58:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-22 08:58:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-22 08:58:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-10-22 08:58:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-10-22 08:58:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-10-22 08:58:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-10-22 08:58:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-22 08:58:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-10-22 08:58:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-10-22 08:58:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-10-22 08:58:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-10-22 08:58:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-10-22 08:58:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-10-22 08:58:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-10-22 08:58:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-10-22 08:58:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-22 08:58:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-10-22 08:58:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-10-22 08:58:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-10-22 08:58:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-10-22 08:58:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-10-22 08:58:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure delete_list [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:58:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:32,409 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:32,409 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:32,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:32 BoogieIcfgContainer [2019-10-22 08:58:32,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:32,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:32,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:32,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:32,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:30" (1/3) ... [2019-10-22 08:58:32,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4efab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:32, skipping insertion in model container [2019-10-22 08:58:32,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (2/3) ... [2019-10-22 08:58:32,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4efab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:32, skipping insertion in model container [2019-10-22 08:58:32,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:32" (3/3) ... [2019-10-22 08:58:32,429 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-2.i [2019-10-22 08:58:32,442 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:32,453 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2019-10-22 08:58:32,465 INFO L249 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2019-10-22 08:58:32,485 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:32,485 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:32,485 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:32,485 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:32,485 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:32,486 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:32,486 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:32,486 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2019-10-22 08:58:32,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:32,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:32,513 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:32,515 INFO L410 AbstractCegarLoop]: === Iteration 1 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, delete_listErr0REQUIRES_VIOLATION, delete_listErr9REQUIRES_VIOLATION, delete_listErr12ASSERT_VIOLATIONMEMORY_FREE, delete_listErr10ASSERT_VIOLATIONMEMORY_FREE, delete_listErr11ASSERT_VIOLATIONMEMORY_FREE, delete_listErr2REQUIRES_VIOLATION, delete_listErr3REQUIRES_VIOLATION, delete_listErr1REQUIRES_VIOLATION, delete_listErr5REQUIRES_VIOLATION, delete_listErr4REQUIRES_VIOLATION, delete_listErr8REQUIRES_VIOLATION, delete_listErr6REQUIRES_VIOLATION, delete_listErr7REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:32,520 INFO L82 PathProgramCache]: Analyzing trace with hash -2055481374, now seen corresponding path program 1 times [2019-10-22 08:58:32,532 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:58:32,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1875220120] [2019-10-22 08:58:32,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1503701-38c2-4ba3-8993-765eb012d7c6/bin/uautomizer/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 08:58:32,765 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:58:32,766 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort C_DOUBLE 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:58:32,772 INFO L168 Benchmark]: Toolchain (without parser) took 2120.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 945.6 MB in the beginning and 969.4 MB in the end (delta: -23.8 MB). Peak memory consumption was 97.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:32,772 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:32,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:32,774 INFO L168 Benchmark]: Boogie Preprocessor took 70.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:32,780 INFO L168 Benchmark]: RCFGBuilder took 926.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 86.4 MB). Peak memory consumption was 86.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:32,780 INFO L168 Benchmark]: TraceAbstraction took 356.42 ms. Allocated memory is still 1.2 GB. Free memory was 981.9 MB in the beginning and 969.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:32,783 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 762.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 926.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 86.4 MB). Peak memory consumption was 86.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 356.42 ms. Allocated memory is still 1.2 GB. Free memory was 981.9 MB in the beginning and 969.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort C_DOUBLE 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...