./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0db1674e58e1126b93b48759a00b2e69f0d5f058 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0db1674e58e1126b93b48759a00b2e69f0d5f058 ................................................................................................................................................................................................................................................................................................................................................................ 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 09:00:26,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:26,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:26,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:26,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:26,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:26,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:26,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:26,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:26,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:26,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:26,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:26,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:26,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:26,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:26,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:26,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:26,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:26,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:26,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:26,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:26,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:26,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:26,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:26,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:26,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:26,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:26,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:26,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:26,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:26,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:26,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:26,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:26,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:26,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:26,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:26,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:26,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:26,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:26,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:26,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:26,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:00:26,916 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:26,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:26,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:26,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:26,922 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:26,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:26,923 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:26,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:26,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:26,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:26,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:26,924 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:00:26,924 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:00:26,924 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:00:26,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:26,924 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:26,925 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:26,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:26,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:26,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:26,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:26,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:26,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:26,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:26,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:26,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:26,928 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_69417767-2c0b-4303-9356-67398a7ce34e/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 0db1674e58e1126b93b48759a00b2e69f0d5f058 [2019-10-22 09:00:26,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:26,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:26,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:26,977 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:26,977 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:26,978 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2019-10-22 09:00:27,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/72e185873/9dae74f6238d4ef382de05e49122a333/FLAG4da16a943 [2019-10-22 09:00:27,492 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:27,493 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2019-10-22 09:00:27,501 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/72e185873/9dae74f6238d4ef382de05e49122a333/FLAG4da16a943 [2019-10-22 09:00:27,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/72e185873/9dae74f6238d4ef382de05e49122a333 [2019-10-22 09:00:27,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:27,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:00:27,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:27,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:27,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:27,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:27,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ed9bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27, skipping insertion in model container [2019-10-22 09:00:27,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:27,527 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:27,563 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:27,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:27,891 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:27,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:27,983 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:27,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27 WrapperNode [2019-10-22 09:00:27,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:27,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:27,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:27,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:27,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:27,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:28,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:28,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:28,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:28,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:28,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... [2019-10-22 09:00:28,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:28,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:28,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:28,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:28,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/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 09:00:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:00:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:00:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:00:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:00:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:00:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:00:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2019-10-22 09:00:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:00:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:00:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:00:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:00:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:00:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:00:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:00:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:00:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:00:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:00:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:00:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:00:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:00:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:00:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:00:28,089 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:00:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:00:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:00:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure append [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 09:00:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:00:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:28,611 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:28,612 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 09:00:28,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:28 BoogieIcfgContainer [2019-10-22 09:00:28,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:28,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:28,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:28,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:28,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:27" (1/3) ... [2019-10-22 09:00:28,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd3f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:28, skipping insertion in model container [2019-10-22 09:00:28,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:27" (2/3) ... [2019-10-22 09:00:28,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd3f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:28, skipping insertion in model container [2019-10-22 09:00:28,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:28" (3/3) ... [2019-10-22 09:00:28,624 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0232_1-1.i [2019-10-22 09:00:28,633 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:28,640 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 44 error locations. [2019-10-22 09:00:28,651 INFO L249 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2019-10-22 09:00:28,676 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:28,676 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:00:28,676 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:28,676 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:28,677 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:28,677 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:28,677 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:28,678 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2019-10-22 09:00:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:00:28,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:28,706 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:28,708 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:28,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1513027048, now seen corresponding path program 1 times [2019-10-22 09:00:28,724 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:28,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85125525] [2019-10-22 09:00:28,725 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:28,725 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:28,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:28,947 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 09:00:28,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85125525] [2019-10-22 09:00:28,950 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:28,951 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:28,951 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281102506] [2019-10-22 09:00:28,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:28,955 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:28,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:28,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:28,984 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 6 states. [2019-10-22 09:00:29,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:29,405 INFO L93 Difference]: Finished difference Result 99 states and 103 transitions. [2019-10-22 09:00:29,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:29,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 09:00:29,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:29,422 INFO L225 Difference]: With dead ends: 99 [2019-10-22 09:00:29,422 INFO L226 Difference]: Without dead ends: 96 [2019-10-22 09:00:29,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-10-22 09:00:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2019-10-22 09:00:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-10-22 09:00:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2019-10-22 09:00:29,469 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 9 [2019-10-22 09:00:29,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:29,469 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2019-10-22 09:00:29,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:29,469 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2019-10-22 09:00:29,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:00:29,471 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:29,471 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:29,472 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:29,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:29,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1513027049, now seen corresponding path program 1 times [2019-10-22 09:00:29,472 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:29,473 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003811306] [2019-10-22 09:00:29,473 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,473 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:29,579 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 09:00:29,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003811306] [2019-10-22 09:00:29,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:29,579 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:29,579 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489669785] [2019-10-22 09:00:29,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:29,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:29,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:29,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:29,586 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand 6 states. [2019-10-22 09:00:29,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:29,875 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2019-10-22 09:00:29,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:29,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 09:00:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:29,882 INFO L225 Difference]: With dead ends: 114 [2019-10-22 09:00:29,882 INFO L226 Difference]: Without dead ends: 114 [2019-10-22 09:00:29,883 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-22 09:00:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 97. [2019-10-22 09:00:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-10-22 09:00:29,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2019-10-22 09:00:29,891 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 9 [2019-10-22 09:00:29,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:29,891 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2019-10-22 09:00:29,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2019-10-22 09:00:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:29,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:29,892 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:29,892 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash 340801820, now seen corresponding path program 1 times [2019-10-22 09:00:29,893 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:29,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48324580] [2019-10-22 09:00:29,893 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,893 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:29,958 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 09:00:29,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48324580] [2019-10-22 09:00:29,959 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:29,959 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:29,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687025966] [2019-10-22 09:00:29,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:29,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:29,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:29,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:29,961 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand 4 states. [2019-10-22 09:00:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:30,124 INFO L93 Difference]: Finished difference Result 93 states and 103 transitions. [2019-10-22 09:00:30,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:30,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 09:00:30,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:30,125 INFO L225 Difference]: With dead ends: 93 [2019-10-22 09:00:30,125 INFO L226 Difference]: Without dead ends: 93 [2019-10-22 09:00:30,126 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 09:00:30,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-10-22 09:00:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2019-10-22 09:00:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-10-22 09:00:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2019-10-22 09:00:30,132 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 10 [2019-10-22 09:00:30,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:30,132 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2019-10-22 09:00:30,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2019-10-22 09:00:30,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:30,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:30,133 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:30,133 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:30,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:30,134 INFO L82 PathProgramCache]: Analyzing trace with hash 340801821, now seen corresponding path program 1 times [2019-10-22 09:00:30,134 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:30,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415640583] [2019-10-22 09:00:30,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,135 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,216 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 09:00:30,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415640583] [2019-10-22 09:00:30,216 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:30,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:30,217 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704737901] [2019-10-22 09:00:30,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:30,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:30,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:30,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:30,230 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand 4 states. [2019-10-22 09:00:30,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:30,382 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2019-10-22 09:00:30,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:30,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 09:00:30,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:30,383 INFO L225 Difference]: With dead ends: 89 [2019-10-22 09:00:30,383 INFO L226 Difference]: Without dead ends: 89 [2019-10-22 09:00:30,384 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 09:00:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-22 09:00:30,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-10-22 09:00:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-10-22 09:00:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2019-10-22 09:00:30,389 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 10 [2019-10-22 09:00:30,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:30,391 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2019-10-22 09:00:30,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:30,391 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2019-10-22 09:00:30,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 09:00:30,392 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:30,392 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:30,392 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:30,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:30,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1768427773, now seen corresponding path program 1 times [2019-10-22 09:00:30,393 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:30,393 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541904374] [2019-10-22 09:00:30,393 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,393 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:30,536 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 09:00:30,537 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541904374] [2019-10-22 09:00:30,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:30,537 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 09:00:30,537 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727018046] [2019-10-22 09:00:30,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:30,541 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:30,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:30,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:30,541 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 9 states. [2019-10-22 09:00:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:30,865 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2019-10-22 09:00:30,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 09:00:30,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-10-22 09:00:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:30,866 INFO L225 Difference]: With dead ends: 100 [2019-10-22 09:00:30,866 INFO L226 Difference]: Without dead ends: 100 [2019-10-22 09:00:30,867 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:00:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-22 09:00:30,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2019-10-22 09:00:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-10-22 09:00:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2019-10-22 09:00:30,876 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 15 [2019-10-22 09:00:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:30,876 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2019-10-22 09:00:30,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:30,876 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2019-10-22 09:00:30,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:00:30,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:30,877 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:30,877 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:30,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:30,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1013592001, now seen corresponding path program 1 times [2019-10-22 09:00:30,882 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:30,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721468934] [2019-10-22 09:00:30,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:30,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,021 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 09:00:31,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721468934] [2019-10-22 09:00:31,021 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:31,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528967645] [2019-10-22 09:00:31,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:00:31,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:00:31,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:31,027 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 7 states. [2019-10-22 09:00:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,254 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2019-10-22 09:00:31,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:31,254 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-10-22 09:00:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,255 INFO L225 Difference]: With dead ends: 95 [2019-10-22 09:00:31,255 INFO L226 Difference]: Without dead ends: 95 [2019-10-22 09:00:31,255 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-22 09:00:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2019-10-22 09:00:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-10-22 09:00:31,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2019-10-22 09:00:31,261 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 16 [2019-10-22 09:00:31,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,261 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2019-10-22 09:00:31,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:00:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2019-10-22 09:00:31,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:00:31,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,262 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:31,263 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:31,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1478502648, now seen corresponding path program 1 times [2019-10-22 09:00:31,263 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66858883] [2019-10-22 09:00:31,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,342 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 09:00:31,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66858883] [2019-10-22 09:00:31,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:31,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859668283] [2019-10-22 09:00:31,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:31,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:31,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:31,344 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand 6 states. [2019-10-22 09:00:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,472 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2019-10-22 09:00:31,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:31,472 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-10-22 09:00:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,473 INFO L225 Difference]: With dead ends: 72 [2019-10-22 09:00:31,473 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 09:00:31,473 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 09:00:31,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2019-10-22 09:00:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 09:00:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2019-10-22 09:00:31,477 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 25 [2019-10-22 09:00:31,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,479 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2019-10-22 09:00:31,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2019-10-22 09:00:31,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:00:31,479 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,480 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:31,480 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:31,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1477280452, now seen corresponding path program 1 times [2019-10-22 09:00:31,480 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418293225] [2019-10-22 09:00:31,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,608 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 09:00:31,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418293225] [2019-10-22 09:00:31,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,609 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 09:00:31,609 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660600069] [2019-10-22 09:00:31,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:31,610 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:31,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:31,610 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 9 states. [2019-10-22 09:00:31,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:31,844 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2019-10-22 09:00:31,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:31,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2019-10-22 09:00:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:31,845 INFO L225 Difference]: With dead ends: 70 [2019-10-22 09:00:31,845 INFO L226 Difference]: Without dead ends: 70 [2019-10-22 09:00:31,845 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:00:31,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-22 09:00:31,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-10-22 09:00:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-22 09:00:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2019-10-22 09:00:31,849 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 25 [2019-10-22 09:00:31,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:31,849 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2019-10-22 09:00:31,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2019-10-22 09:00:31,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:00:31,850 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:31,850 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:31,851 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:31,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:31,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1477280453, now seen corresponding path program 1 times [2019-10-22 09:00:31,851 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:31,851 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349214948] [2019-10-22 09:00:31,851 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,851 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:31,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:31,992 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 09:00:31,993 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349214948] [2019-10-22 09:00:31,993 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:31,993 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 09:00:31,993 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803699392] [2019-10-22 09:00:31,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:31,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:31,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:31,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:31,994 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 9 states. [2019-10-22 09:00:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,266 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2019-10-22 09:00:32,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:32,267 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2019-10-22 09:00:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,268 INFO L225 Difference]: With dead ends: 69 [2019-10-22 09:00:32,268 INFO L226 Difference]: Without dead ends: 69 [2019-10-22 09:00:32,268 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:00:32,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-10-22 09:00:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-10-22 09:00:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 09:00:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2019-10-22 09:00:32,271 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 25 [2019-10-22 09:00:32,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,271 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2019-10-22 09:00:32,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2019-10-22 09:00:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 09:00:32,272 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,272 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:32,273 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,273 INFO L82 PathProgramCache]: Analyzing trace with hash -867915693, now seen corresponding path program 1 times [2019-10-22 09:00:32,273 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436461420] [2019-10-22 09:00:32,273 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,278 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,386 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 09:00:32,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436461420] [2019-10-22 09:00:32,386 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,386 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:00:32,386 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193281275] [2019-10-22 09:00:32,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:32,387 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:32,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:32,387 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand 8 states. [2019-10-22 09:00:32,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,606 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2019-10-22 09:00:32,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:32,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-10-22 09:00:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,608 INFO L225 Difference]: With dead ends: 68 [2019-10-22 09:00:32,608 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 09:00:32,608 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:00:32,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 09:00:32,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-22 09:00:32,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 09:00:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2019-10-22 09:00:32,611 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 28 [2019-10-22 09:00:32,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,611 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2019-10-22 09:00:32,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:32,611 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2019-10-22 09:00:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 09:00:32,612 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,612 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:32,613 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:32,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1135582619, now seen corresponding path program 1 times [2019-10-22 09:00:32,613 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286140090] [2019-10-22 09:00:32,613 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,614 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:32,724 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 09:00:32,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286140090] [2019-10-22 09:00:32,724 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:32,724 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:00:32,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683545734] [2019-10-22 09:00:32,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:32,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:32,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:32,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:32,725 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 8 states. [2019-10-22 09:00:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:32,966 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2019-10-22 09:00:32,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:32,967 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-10-22 09:00:32,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:32,967 INFO L225 Difference]: With dead ends: 67 [2019-10-22 09:00:32,967 INFO L226 Difference]: Without dead ends: 67 [2019-10-22 09:00:32,968 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:00:32,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-10-22 09:00:32,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-10-22 09:00:32,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-10-22 09:00:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2019-10-22 09:00:32,970 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 29 [2019-10-22 09:00:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:32,971 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2019-10-22 09:00:32,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2019-10-22 09:00:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:00:32,971 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:32,972 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:32,972 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:32,972 INFO L82 PathProgramCache]: Analyzing trace with hash -97727638, now seen corresponding path program 1 times [2019-10-22 09:00:32,972 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:32,973 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802488842] [2019-10-22 09:00:32,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:32,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:33,180 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:33,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802488842] [2019-10-22 09:00:33,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451727189] [2019-10-22 09:00:33,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/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 09:00:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:33,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 52 conjunts are in the unsatisfiable core [2019-10-22 09:00:33,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:33,404 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 11 treesize of output 7 [2019-10-22 09:00:33,404 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,418 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,422 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 11 treesize of output 7 [2019-10-22 09:00:33,422 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,431 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,432 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,432 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:26 [2019-10-22 09:00:33,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:33,503 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2019-10-22 09:00:33,504 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,516 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,525 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,525 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-10-22 09:00:33,526 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,537 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:33,537 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:33 [2019-10-22 09:00:33,643 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-10-22 09:00:33,644 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 18 [2019-10-22 09:00:33,644 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,670 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,682 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-10-22 09:00:33,683 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 24 [2019-10-22 09:00:33,683 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,721 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,722 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:33,722 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:60, output treesize:52 [2019-10-22 09:00:33,784 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,784 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 28 [2019-10-22 09:00:33,785 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,796 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,805 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,805 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2019-10-22 09:00:33,806 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:33,812 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:33,813 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:33,813 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:66, output treesize:18 [2019-10-22 09:00:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:33,848 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:33,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2019-10-22 09:00:33,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098326081] [2019-10-22 09:00:33,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-22 09:00:33,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:33,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-22 09:00:33,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2019-10-22 09:00:33,850 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 19 states. [2019-10-22 09:00:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:34,643 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2019-10-22 09:00:34,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 09:00:34,644 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 30 [2019-10-22 09:00:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:34,644 INFO L225 Difference]: With dead ends: 73 [2019-10-22 09:00:34,645 INFO L226 Difference]: Without dead ends: 73 [2019-10-22 09:00:34,645 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2019-10-22 09:00:34,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-22 09:00:34,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2019-10-22 09:00:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 09:00:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2019-10-22 09:00:34,648 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 30 [2019-10-22 09:00:34,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:34,648 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2019-10-22 09:00:34,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-22 09:00:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2019-10-22 09:00:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:00:34,649 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:34,649 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:34,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:34,851 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:34,851 INFO L82 PathProgramCache]: Analyzing trace with hash -97727639, now seen corresponding path program 1 times [2019-10-22 09:00:34,851 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:34,851 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578996086] [2019-10-22 09:00:34,852 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,852 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578996086] [2019-10-22 09:00:35,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824555904] [2019-10-22 09:00:35,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/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 09:00:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 34 conjunts are in the unsatisfiable core [2019-10-22 09:00:35,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:35,149 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 11 treesize of output 7 [2019-10-22 09:00:35,150 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:35,154 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:35,154 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:35,155 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2019-10-22 09:00:35,208 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:35,209 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 59 [2019-10-22 09:00:35,210 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:35,231 INFO L567 ElimStorePlain]: treesize reduction 26, result has 50.0 percent of original size [2019-10-22 09:00:35,231 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:35,232 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:26 [2019-10-22 09:00:35,294 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-10-22 09:00:35,294 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 24 [2019-10-22 09:00:35,295 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:35,300 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:35,301 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:35,301 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:34 [2019-10-22 09:00:35,350 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:35,350 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 28 [2019-10-22 09:00:35,351 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:35,356 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:35,357 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:35,357 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:41, output treesize:15 [2019-10-22 09:00:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,388 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:35,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2019-10-22 09:00:35,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694400476] [2019-10-22 09:00:35,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-22 09:00:35,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-22 09:00:35,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2019-10-22 09:00:35,391 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 19 states. [2019-10-22 09:00:35,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:35,912 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2019-10-22 09:00:35,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-22 09:00:35,913 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 30 [2019-10-22 09:00:35,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:35,913 INFO L225 Difference]: With dead ends: 72 [2019-10-22 09:00:35,914 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 09:00:35,914 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2019-10-22 09:00:35,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 09:00:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2019-10-22 09:00:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-22 09:00:35,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2019-10-22 09:00:35,917 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 30 [2019-10-22 09:00:35,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:35,918 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2019-10-22 09:00:35,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-22 09:00:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2019-10-22 09:00:35,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:00:35,918 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:35,918 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:36,119 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:36,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,120 INFO L82 PathProgramCache]: Analyzing trace with hash -843322731, now seen corresponding path program 1 times [2019-10-22 09:00:36,120 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,120 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788720018] [2019-10-22 09:00:36,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,187 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 09:00:36,188 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788720018] [2019-10-22 09:00:36,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:36,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:36,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040322681] [2019-10-22 09:00:36,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:00:36,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:36,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:00:36,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:36,191 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 7 states. [2019-10-22 09:00:36,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,358 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2019-10-22 09:00:36,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:36,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2019-10-22 09:00:36,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,359 INFO L225 Difference]: With dead ends: 69 [2019-10-22 09:00:36,359 INFO L226 Difference]: Without dead ends: 69 [2019-10-22 09:00:36,360 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:36,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-10-22 09:00:36,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-10-22 09:00:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 09:00:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2019-10-22 09:00:36,363 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 30 [2019-10-22 09:00:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,363 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2019-10-22 09:00:36,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:00:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2019-10-22 09:00:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 09:00:36,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,364 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,364 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,364 INFO L82 PathProgramCache]: Analyzing trace with hash -373200792, now seen corresponding path program 1 times [2019-10-22 09:00:36,364 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203053020] [2019-10-22 09:00:36,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:36,496 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 09:00:36,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203053020] [2019-10-22 09:00:36,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:36,496 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 09:00:36,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276966450] [2019-10-22 09:00:36,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 09:00:36,497 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:36,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 09:00:36,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:36,498 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 10 states. [2019-10-22 09:00:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,787 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2019-10-22 09:00:36,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:00:36,788 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2019-10-22 09:00:36,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:36,788 INFO L225 Difference]: With dead ends: 66 [2019-10-22 09:00:36,789 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 09:00:36,789 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-22 09:00:36,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 09:00:36,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-10-22 09:00:36,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 09:00:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2019-10-22 09:00:36,811 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 31 [2019-10-22 09:00:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:36,811 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2019-10-22 09:00:36,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 09:00:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2019-10-22 09:00:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 09:00:36,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:36,812 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,812 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION]=== [2019-10-22 09:00:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,813 INFO L82 PathProgramCache]: Analyzing trace with hash -526970094, now seen corresponding path program 1 times [2019-10-22 09:00:36,813 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449145011] [2019-10-22 09:00:36,813 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,813 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,896 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:36,897 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:36,915 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 09:00:36,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:36 BoogieIcfgContainer [2019-10-22 09:00:36,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:36,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:36,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:36,945 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:36,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:28" (3/4) ... [2019-10-22 09:00:36,949 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:36,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:36,950 INFO L168 Benchmark]: Toolchain (without parser) took 9435.46 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 288.9 MB). Free memory was 945.9 MB in the beginning and 1.3 GB in the end (delta: -324.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,951 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:36,951 INFO L168 Benchmark]: Boogie Preprocessor took 45.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,951 INFO L168 Benchmark]: RCFGBuilder took 583.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:36,952 INFO L168 Benchmark]: TraceAbstraction took 8328.78 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 172.0 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -243.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,952 INFO L168 Benchmark]: Witness Printer took 4.81 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:36,954 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 467.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 583.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8328.78 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 172.0 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -243.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.81 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 528]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 528. Possible FailurePath: [L513] int c = 0; VAL [\old(c)=10, c=0] [L530] struct item *list = ((void *)0); [L531] int length = 0; VAL [\old(c)=0, c=0, length=0, list={-3:0}] [L533] CALL append(&list) VAL [\old(c)=0, c=0, plist={-3:0}] [L520] c++ [L521] struct item *item = malloc(sizeof *item); VAL [\old(c)=0, c=1, item={-1:0}, malloc(sizeof *item)={-1:0}, plist={-3:0}, plist={-3:0}] [L522] EXPR \read(**plist) VAL [\old(c)=0, \read(**plist)={0:0}, c=1, item={-1:0}, malloc(sizeof *item)={-1:0}, plist={-3:0}, plist={-3:0}] [L522] item->next = *plist VAL [\old(c)=0, \read(**plist)={0:0}, c=1, item={-1:0}, malloc(sizeof *item)={-1:0}, plist={-3:0}, plist={-3:0}] [L523] EXPR item->next VAL [\old(c)=0, c=1, item={-1:0}, item->next={0:0}, malloc(sizeof *item)={-1:0}, plist={-3:0}, plist={-3:0}] [L523-L525] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L523-L525] EXPR (item->next) ? item->next->data : malloc(sizeof *item) VAL [(item->next) ? item->next->data : malloc(sizeof *item)={1:0}, \old(c)=0, c=1, item={-1:0}, item->next={0:0}, malloc(sizeof *item)={-1:0}, malloc(sizeof *item)={1:0}, plist={-3:0}, plist={-3:0}] [L523-L525] item->data = (item->next) ? item->next->data : malloc(sizeof *item) VAL [(item->next) ? item->next->data : malloc(sizeof *item)={1:0}, \old(c)=0, c=1, item={-1:0}, item->next={0:0}, malloc(sizeof *item)={-1:0}, malloc(sizeof *item)={1:0}, plist={-3:0}, plist={-3:0}] [L526] *plist = item VAL [\old(c)=0, c=1, item={-1:0}, malloc(sizeof *item)={-1:0}, malloc(sizeof *item)={1:0}, plist={-3:0}, plist={-3:0}] [L533] RET append(&list) VAL [\old(c)=0, c=1, length=0, list={-3:0}] [L534] length++ VAL [\old(c)=0, c=1, length=1, list={-3:0}] [L535] COND FALSE !(__VERIFIER_nondet_int() && c < 20) [L536] COND TRUE length > 0 VAL [\old(c)=0, c=1, length=1, list={-3:0}] [L537] COND FALSE !(length < 0) VAL [\old(c)=0, c=1, length=1, list={-3:0}] [L540] EXPR \read(*list) VAL [\old(c)=0, \read(*list)={-1:0}, c=1, length=1, list={-3:0}] [L540] EXPR list->next VAL [\old(c)=0, \read(*list)={-1:0}, c=1, length=1, list={-3:0}, list->next={0:0}] [L540] struct item *next = list->next; [L541] EXPR \read(*list) VAL [\old(c)=0, \read(*list)={-1:0}, c=1, length=1, list={-3:0}, next={0:0}] [L541] free(list) VAL [\old(c)=0, \read(*list)={-1:0}, c=1, length=1, list={-3:0}, next={0:0}] [L541] free(list) VAL [\old(c)=0, \read(*list)={-1:0}, c=1, length=1, list={-3:0}, next={0:0}] [L541] free(list) [L542] list = next VAL [\old(c)=0, c=1, length=1, list={-3:0}, next={0:0}] [L543] length-- VAL [\old(c)=0, c=1, length=0, list={-3:0}, next={0:0}] [L545] COND FALSE !(length > 0) VAL [\old(c)=0, c=1, length=0, list={-3:0}, next={0:0}] [L551] return 0; [L530] struct item *list = ((void *)0); [L551] return 0; VAL [\old(c)=0, \result=0, c=1, length=0, next={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 114 locations, 44 error locations. Result: UNSAFE, OverallTime: 8.2s, OverallIterations: 16, TraceHistogramMax: 2, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 762 SDtfs, 756 SDslu, 2345 SDs, 0 SdLazy, 3359 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 34 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 417 NumberOfCodeBlocks, 417 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 365 ConstructedInterpolants, 14 QuantifiedInterpolants, 89488 SizeOfPredicates, 35 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 6/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:38,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:38,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:38,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:38,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:38,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:38,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:38,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:38,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:38,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:38,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:38,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:38,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:38,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:38,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:38,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:38,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:38,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:38,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:38,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:38,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:38,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:38,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:38,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:38,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:38,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:38,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:38,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:38,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:38,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:38,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:38,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:38,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:38,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:38,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:38,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:38,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:38,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:38,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:38,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:38,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:38,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-10-22 09:00:38,974 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:38,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:38,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:38,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:38,975 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:38,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:38,976 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:38,976 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:38,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:38,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:38,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:38,976 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:00:38,977 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:00:38,977 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:00:38,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:38,977 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:00:38,977 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:00:38,977 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:38,978 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:38,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:38,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:38,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:38,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:38,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:38,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:38,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:38,979 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:00:38,979 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:00:38,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:00:38,979 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_69417767-2c0b-4303-9356-67398a7ce34e/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 0db1674e58e1126b93b48759a00b2e69f0d5f058 [2019-10-22 09:00:39,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:39,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:39,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:39,019 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:39,020 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:39,020 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2019-10-22 09:00:39,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/e66548c28/b685fe2dd0e94ea4b350927185057ebb/FLAG8384c3f89 [2019-10-22 09:00:39,485 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:39,485 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2019-10-22 09:00:39,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/e66548c28/b685fe2dd0e94ea4b350927185057ebb/FLAG8384c3f89 [2019-10-22 09:00:39,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/bin/uautomizer/data/e66548c28/b685fe2dd0e94ea4b350927185057ebb [2019-10-22 09:00:39,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:39,827 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:00:39,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:39,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:39,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:39,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6348440d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39, skipping insertion in model container [2019-10-22 09:00:39,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,842 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:39,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:40,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:40,219 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:40,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:40,320 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:40,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40 WrapperNode [2019-10-22 09:00:40,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:40,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:40,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:40,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:40,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... [2019-10-22 09:00:40,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... [2019-10-22 09:00:40,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... [2019-10-22 09:00:40,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... [2019-10-22 09:00:40,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... [2019-10-22 09:00:40,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... [2019-10-22 09:00:40,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... [2019-10-22 09:00:40,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:40,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:40,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:40,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:40,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/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 09:00:40,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:00:40,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:40,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:00:40,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:00:40,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:00:40,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:00:40,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:00:40,433 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2019-10-22 09:00:40,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:00:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:00:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:00:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:00:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:00:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:00:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:00:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:00:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:00:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:00:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:00:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:00:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:00:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:00:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:00:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:00:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:00:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:00:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:00:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:00:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:00:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:00:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:00:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:00:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:00:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:00:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:00:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:00:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:00:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:00:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:00:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:00:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:00:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:00:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:00:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:00:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:00:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:00:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:00:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:00:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:00:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:00:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:00:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:00:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:00:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:00:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:00:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:00:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure append [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 09:00:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:00:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:41,118 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:41,119 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 09:00:41,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:41 BoogieIcfgContainer [2019-10-22 09:00:41,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:41,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:41,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:41,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:41,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:39" (1/3) ... [2019-10-22 09:00:41,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e052aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:41, skipping insertion in model container [2019-10-22 09:00:41,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:40" (2/3) ... [2019-10-22 09:00:41,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e052aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:41, skipping insertion in model container [2019-10-22 09:00:41,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:41" (3/3) ... [2019-10-22 09:00:41,129 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0232_1-1.i [2019-10-22 09:00:41,138 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:41,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 44 error locations. [2019-10-22 09:00:41,158 INFO L249 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2019-10-22 09:00:41,177 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:41,178 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:00:41,178 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:41,178 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:41,178 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:41,178 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:41,179 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:41,179 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-10-22 09:00:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:00:41,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:41,209 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:41,211 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr26ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION]=== [2019-10-22 09:00:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:41,216 INFO L82 PathProgramCache]: Analyzing trace with hash 264873749, now seen corresponding path program 1 times [2019-10-22 09:00:41,225 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:41,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1338708632] [2019-10-22 09:00:41,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69417767-2c0b-4303-9356-67398a7ce34e/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 09:00:41,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 09:00:41,450 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 09:00:41,454 INFO L168 Benchmark]: Toolchain (without parser) took 1626.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -116.0 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:41,455 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:41,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:41,456 INFO L168 Benchmark]: Boogie Preprocessor took 56.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:41,457 INFO L168 Benchmark]: RCFGBuilder took 741.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:41,457 INFO L168 Benchmark]: TraceAbstraction took 332.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:41,460 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 493.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 741.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 332.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 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...